Journal articles: 'RETURN LOSS BANDWIDTH'

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Ashari, Sofian Dwi, Muhammad Panji Kusuma Praja, and Agung Wicaksono. "Rancang Bangun Antena Microstrip Patch Circular Menggunakan Metode Defected Ground Structure (DGS) Untuk Aplikasi DVB-T2." Techno.Com 22, no. 3 (August 24, 2023): 539–49. http://dx.doi.org/10.33633/tc.v22i3.8244.

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Perkembangan era digital ini tidak lepas juga pada televisi, di mana televisi mengalami perubahan dari analog ke digital yang tertuang pada peraturan kominfo. Penyiaran televisi digital di indonesia mengunakan setandar Digital Video Broadcasting – Second Generation Terestrial (DVB-T2) yang berkerja pada range frekuensi 478-694 MHz. Proses peralihan dari televisi analog ke digital akan membutuhkan antena yang sesuai, yang dapat menangkap sinyal tersebut. Antena mikrostrip memiliki kelebihan bentuknya yang compact dan mudah untuk difabrikasi, namun memiliki kelemahan di antaranya bandwith yang dihasilkan sempit, oleh karena itu pada penelitian ini antena yang digunakan menggunakan patch lingkaran (circular) dan menggunakan metode Defected Ground Structure (DGS). Metode DGS diterapkan dengan tujuan untuk memperlebar bandwith. Hasil perancangan menunjukan bahwa parameter antena seperti VSWR, gain dan return loss mengalami perbaikan antara sebelum menggunakan metode DGS dan menggunakan metode DGS. Nilai parameter antena sebelum metode DGS pada frekuensi tengah 586 MHz menunjukkan nilai return loss -14,56 dB, VSWR 3,32, dan gain -5,45 dBi. Pada perancangan menggunakan metode DGS, menunjukkan nilai return loss -39,32 dB, VSWR 0,19, dan gain sebesar 5,49 dBi. Sedangkan nilai bandwidth mengalami perubahan, yaitu sebesar 11 MHz pada perancangan tanpa metode DGS, dan bandwidth sebesar 365 MHz dengan menggunakan metode DGS.Perkembangan era digital ini tidak lepas juga pada televisi, dimana televisi mengalami perubahan dari analog ke digital yang tertuang pada peraturan kominfo. Penyiaran televisi digital di indonesia mengunakan setandar Digital Video Broadcasting – Second Generation Terestrial (DVB-T2) yang berkerja pada range frekuensi. Proses peralihan dari televisi analog ke digital akan membutuhkan antena yang sesuai, yang dapat menangkap sinyal tersebut. Antena mikrostrip memiliki kelebihan bentuknya yang compact dan mudah untuk difabrikasi, namun memiliki kelemahan di antaranya bandwith yang dihasilkan sempit, oleh karena itu pada penelitian ini antena yang digunakan menggunakan patch lingkaran (circular) dan menggunakan metode Defected Ground Structure (DGS). Metode DGS diterapkandengan tujuan untuk memperlebarbandwith. Hasil perancangan menunjukan bahwa parameter antena seperti VSWR, gain dan return loss mengalami perbaikan antara sebelum menggunakan metode DGS dan menggunakan metode DGS. Nilai parameter antena sebelum metode DGS pada frekuensi tengah 586 MHz menunjukkan nilai return loss, VSWR , dan gain . Pada perancangan menggunakan metode DGS, menunjukkan nilai return loss, VSWR , dan gain sebesar . Sedangkan nilai bandwidth mengalami perubahan, yaitu sebesar pada perancangan tanpa metode DGS, dan bandwidth sebesar dengan menggunakan metode DGS.

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Kirana, Nurista Wahyu. "An Analysis of Slot Dimension Changing in Dual band Rectangular Patch Microstrip Antenna with Proximity Coupled Feed." JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING 4, no. 1 (July 20, 2020): 246–53. http://dx.doi.org/10.31289/jite.v4i1.3961.

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In this paper, the characteristics of dual band rectangular patch microstrip antenna using proximity couple feed are studied. It can be used for a wireless device that works on multiband frequency. The addition of slot and proximity feed used in order to obtain larger bandwidth and multiple frequency. Microstrip antenna is designed and simulated using software also used to analyze by changing the variable of microstrip slot’s dimension. The parameters are tested in this study include Voltage standing wave ratio (VSWR), return loss, gain, bandwidth and radiation patterns. From the simulation results, the best value of return loss antenna is -23,29 dB at 2,4 GHz with a slot width of 1 mm and 0,085 GHz bandwidth. At 3,7 GHz, the best value of return loss antenna is -23dB with a slot width of 2 mm and 0,12 GHz bandwidth. Afterwards, the best VSWR obtained on dual band microstrip antennas with proximity coupled feed is 1,14 and 5.53 dBi gain.Keywords: slot, bandwidth, proximity, return loss, gain.

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Xie, Tingting, Xiaohe Cheng, Yuan Yao, Yaohui Yang, Ting Zhang, Junsheng Yu, and Xiaodong Chen. "A Novel Method to Broaden the Single-Mode Bandwidth of the Rectangular Waveguide." International Journal of Antennas and Propagation 2022 (March 29, 2022): 1–8. http://dx.doi.org/10.1155/2022/1554190.

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In this paper, a new class of broadband and low-loss transmission line called slotted rectangular waveguide (SRW) is proposed and analyzed. The proposed SRW consists of the rectangular waveguide and the inverted low-loss slotline, which can selectively suppress the higher-order mode (TE20 mode) and broaden the single dominant mode (TE10 mode) bandwidth in a rectangular waveguide (RW). The design principle and transmission characteristics of the SRW are illustrated and analyzed in this work. The transmission dominant mode bandwidth of the proposed SRW is analyzed and compared with the classic rectangular waveguide (RW), in which the dominant mode bandwidth of 60–155 GHz (88.4% bandwidth) is broader than the RW bandwidth of 60–116 GHz (63%). Two feed structures that can excite the two operating bandwidths (W and D band) of them separately are also designed. The SRW and transition exhibit broadband and low-loss characteristics from 75 GHz to 155 GHz, in which the transmission loss is lower than 0.68 dB and the return loss is over 18 dB.

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Eslami Nazari, Mohsen, Weimin Huang, and Zahraalsadat Alavizadeh. "Return loss-bandwidth evaluation for electrically small microstrip antennas." Journal of Electromagnetic Waves and Applications 34, no. 16 (August 24, 2020): 2220–35. http://dx.doi.org/10.1080/09205071.2020.1809534.

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Salihah, S., M. H. Jamaluddin, R. Selvaraju, and M. N. Hafiz. "A MIMO H-shape Dielectric Resonator Antenna for 4G Applications." Indonesian Journal of Electrical Engineering and Computer Science 10, no. 2 (May 1, 2018): 648. http://dx.doi.org/10.11591/ijeecs.v10.i2.pp648-653.

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In this article, a Multiple-Input-Multiple-Output (MIMO) H-shape Dielectric Resonator Antenna (DRA) is designed and simulated at 2.6 GHz for 4G applications. The proposed structure consists of H-shape DRA ( =10) which is mounted on FR4 substrate ( =4.6), and feed by two different feeding mechanisms. First, microstrip with slot coupling as Port 1. Second, coaxial probe as Port 2. The electrical properties of the proposed MIMO H-shape DRA in term of return loss, bandwidth and gain are completely obtained by using CST Microwave Studio Suite Software. The simulated results demonstrated a return loss more than 20 dB, an impedance bandwidth of 26 % (2.2 – 2.9 GHz), and gain of 6.11 dBi at Port 1. Then, a return loss more than 20 dB, an impedance bandwidth of 13 % (2.2 – 2.7 GHz), and gain of 6.63 dBi at Port 2. Both ports indicated impedance bandwidth more than 10 %, return loss lower than 20 dB, and gain more than 10 dBi at 2.6 GHz. The simulated electrical properties of the proposed design show a good potential for LTE applications.

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RAHAYU, YUSNITA, MEILITA KURNIATI, and INESTI LAILATUL QODRIYAH. "Antena Mikrostrip Biosensor untuk Deteksi Virus pada Darah." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 9, no. 3 (July 9, 2021): 604. http://dx.doi.org/10.26760/elkomika.v9i3.604.

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ABSTRAKKemajuan teknologi gelombang mikro memainkan peran penting dalam berbagai aplikasi diagnosa dan deteksi penyakit. Penelitian ini mengusulkan dua model antena untuk mendeteksi virus menggunakan Antena Mikrostrip Biosensor yang beroperasi pada ISM band (2,4-2,5 GHz). Antena yang diusulkan disimulasikan pada Software CST dengan material substrat Roger 3010. Hasil simulasi yang diperoleh antena pertama beroperasi pada 2,46 GHz, return loss -19,76 dB, bandwidth 401,2 MHz. Antena kedua pada 2,45 GHz, return loss -22,51 dB, bandwidth 227,4 MHz. Hasil simulasi pengujian menggunakan phantom darah menunjukkan pergeseran frekuensi semakin rendah dengan antena pertama 2,38 GHz dan antena kedua 2,43 GHz. Pengukuran antena pertama beroperasi pada 2,5 GHz dengan return loss -21,55 dB dan antena kedua beroperasi pada 2,47 GHz dengan return loss -28 dB. Pengukuran antena menggunakan VNA menunjukkan pergeseran frekuensi semakin meningkat diikuti return loss semakin rendah dibandingkan dengan hasil simulasi.Kata kunci: antena deteksi virus, ISM, proximity coupled, mikrostrip, phantom.ABSTRACTAdvances in microwave technology play an important role in a wide variety of disease diagnostic and detection applications. This study proposes two antenna models for virus detection using a Microstrip Biosensor antenna that operates on the ISM band (2.4-2.5 GHz). The proposed antenna is simulated in CST software with Roger 3010 substrate material. The simulation results obtained by the first antenna operate at 2.46 GHz, return loss of -19.76 dB, a bandwidth of 401.2 MHz. The second antenna at 2.45 GHz, return loss of -22.51 dB, a bandwidth of 227.4 MHz. The test simulation results using blood phantom show that the frequency shift is getting lower with the first antenna at 2.38 GHz and the second antenna at 2.43 GHz. The first antenna measurement operates at 2.5 GHz with a return loss of -21.55 dB and the second antenna operates at 2.47 GHz with a return loss of -28 dB. Antenna measurement using VNA shows that the frequency shift is increasing followed by lower return loss compared to the simulation results.Keywords: antena for virus detection, ISM, proximity coupled, microstrip, phantom.

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Rohadi, Erfan, Amalia Amalia, Indrazno Siradjuddin, Awan Setiawan, Ferdian Ronilaya, Rosa Andrie Asmara, Chairul Saleh, Mochammad Firdaus Ali, Adzikirani Adzikirani, and . "Design and Analysis of The IFA Bandwidth Enhancement for 639 MHz UHF Channel." International Journal of Engineering & Technology 7, no. 4.44 (December 1, 2018): 61. http://dx.doi.org/10.14419/ijet.v7i4.44.26864.

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Bandwidth characteristic enhancement of the antenna is engaging and challenging problems for antenna engineers. The design of the 639 MHz frequency of the low-profile inverted F antenna (IFA) on a finite conducting plane proposed and its characteristics are analyzed numerically. The IFA is typically a narrowband antenna, due to the bandwidth enhancement the antenna parameters are considered. When the size of the conducting plane is 115 mm by 230 mm, the return loss bandwidth (-10 dB) becomes 2.4 % and the gain becomes 6.58 dB. The results found that when the height of the antenna reduced the return loss bandwidth becomes narrower. However, the return loss bandwidth can be improved by extending the length of the short stub. The gains of IFA are more than 6.5 dB in all the calculation conditions. This means that the gain characteristics are not significantly affected by variations in short stub length, the antenna heights and the size of conducting plane. The results show that by extending the height of the antenna and enlarge the size of the conducting plane improved the bandwidth enhancement of the IFA. The proposed inverted F antenna is promising for the UHF channel receiver.

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Kumari, Sapna. "Dual-Band Square Microstrip Patch Antenna for 4G/LTE and Wi-Fi Applications." International Journal for Research in Applied Science and Engineering Technology 9, no. 8 (August 31, 2021): 1384–90. http://dx.doi.org/10.22214/ijraset.2021.37598.

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Abstract: A dual-band, Square-shaped Microstrip Patch Antenna (SMPA) with two opposite corner cuts is proposed. The presented design is suitable for 4G/LTE and Wi-Fi applications as it resonates at 2.13GHz and 2.41GHz frequencies. The FR4 substrate with co-axial feed is used for fabrication and is simulated using CST software. The simulation result provides enhanced antenna specification of return loss (-42.64&-20.13) dB, bandwidth (62.7&89) MHz and percentage bandwidth (2.94&3.69) % than the conventional antenna prototype. Furthermore, a comparative study of simulated and experimental findings is analyzed in this manuscript. Keywords: Dual-band, return Loss, Bandwidth, Percentage Bandwidth, 4G/LTE, Wi-Fi

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Mishra, Kalyani. "Bandwidth and Return Loss Enhancement of Microstrip Antenna using DGS." International Journal for Research in Applied Science and Engineering Technology 9, no. 2 (February 28, 2021): 97–102. http://dx.doi.org/10.22214/ijraset.2021.32979.

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R A K, Herma Nugroho. "Desain Antena Hexagonal Patch Array untuk Peningkatan Gain dan Bandwidth pada Frekuensi 2,4 GHz." TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol 2, no. 1 (May 22, 2016): 44–52. http://dx.doi.org/10.15575/telka.v2i1.13.

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Pada penelitian ini telah didesain antena hexagonal single patch dan hexagonal patch array yang dapat digunakan sebagai perangkat antena untuk menangkap gelombang radio (RF) pada frekuensi 2,4 GHz pada Wireless Local Area Network (WLAN). Desain antena dilakukan menggunakan software CST 2015 (Student Version) Microwave studio. Parameter pengujian antena hexagonal patch array meliputi return loss, gain, dan bandwidth. Metode yang digunakan adalah pemodelan transmission line dan corporate feed line untuk pengaturan perubahan jarak antar patch antena. Perubahan variabel juga diteliti pengaruhnya terhadap parameter antena khususnya gain antena. Nilai parameter antena hasil simulasi antena hexagonal patch array menunjukkan nilai return loss adalah -20, 081 dB, gain sebesar 3,51 dB, bandwidth adalah 0,05 GHz. Sedangkan nilai parameter antena hasil simulasi antena hexagonal patch array menunjukkan nilai return loss adalah -33, 94 dB, gain sebesar 5,55 dB, bandwidth adalah 0,08 GHz.

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R A K, Herma Nugroho. "Desain Antena Hexagonal Patch Array untuk Peningkatan Gain dan Bandwidth pada Frekuensi 2,4 GHz." TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol 2, no. 1 (May 22, 2016): 44–52. http://dx.doi.org/10.15575/telka.v2n1.44-52.

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Pada penelitian ini telah didesain antena hexagonal single patch dan hexagonal patch array yang dapat digunakan sebagai perangkat antena untuk menangkap gelombang radio (RF) pada frekuensi 2,4 GHz pada Wireless Local Area Network (WLAN). Desain antena dilakukan menggunakan software CST 2015 (Student Version) Microwave studio. Parameter pengujian antena hexagonal patch array meliputi return loss, gain, dan bandwidth. Metode yang digunakan adalah pemodelan transmission line dan corporate feed line untuk pengaturan perubahan jarak antar patch antena. Perubahan variabel juga diteliti pengaruhnya terhadap parameter antena khususnya gain antena. Nilai parameter antena hasil simulasi antena hexagonal patch array menunjukkan nilai return loss adalah -20, 081 dB, gain sebesar 3,51 dB, bandwidth adalah 0,05 GHz. Sedangkan nilai parameter antena hasil simulasi antena hexagonal patch array menunjukkan nilai return loss adalah -33, 94 dB, gain sebesar 5,55 dB, bandwidth adalah 0,08 GHz.

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Polat, Hilal Koc. "A Novel Approach for Production Challenges of Flexible Microstrip Patch Antenna." Brilliant Engineering 1, no. 1 (November 27, 2019): 7–12. http://dx.doi.org/10.36937/ben.2020.001.002.

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It is unavoidable to decrease the thickness of the substrate in order to obtain enough flexibility. Decreasing the height of the substrate lowers the gain of antenna and its bandwidth. Thus, it is challenging to provide operability for the flexible materials and it requires new approaches. This paper is shown that the using nano silver paste for the designed antenna causes better return loss rates (S11) and bandwidth. Also, the effect of sintering temperatures on the response of the antenna is analyzed for the range of 150 ° C to 350 ° C. The highest resonance frequency and the lowest return loss are observed at 350 ° C in this range. The SEM images of the antenna surfaces show that the nanoparticles in the paste group together with increasing sintering temperatures. When compared to the perfect conductor silver, better return loss and bandwidth are obtained.

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Setiawan, Arie, Taufiqqurrachman Taufiqqurrachman, Adam Kusumah Firdaus, Fajri Darwis, Aminuddin Rizal, Winy Desvasari, Hana Arisesa, et al. "Design and Realization of Band Pass Filter in K-Band Frequency for Short Range Radar Application." Jurnal Elektronika dan Telekomunikasi 21, no. 1 (August 31, 2021): 1. http://dx.doi.org/10.14203/jet.v21.1-7.

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Short range radar (SRR) uses the K-band frequency range in its application. The radar requires high-resolution, so the applied frequency is 1 GHz wide. The filter is one of the devices used to ensure only a predetermined frequency is received by the radar system. This device must have a wide operating bandwidth to meet the specification of the radar. In this paper, a band pass filter (BPF) is proposed. It is designed and fabricated on RO4003C substrate using the substrate integrated waveguide (SIW) technique, results in a wide bandwidth at the K-band frequency that centered at 24 GHz. Besides the bandwidth analysis, the analysis of the insertion loss, the return loss, and the dimension are also reported. The simulated results of the bandpass filter are: VSWR of 1.0308, a return loss of -36.9344 dB, and an insertion loss of -0.6695 dB. The measurement results show that the design obtains a VSWR of 2.067, a return loss of -8.136 dB, and an insertion loss of -4.316 dB. While, it is obtained that the bandwidth is reduced by about 50% compared with the simulation. The result differences between simulation and measurement are mainly due to the imperfect fabrication process.

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MUTMAINNAH, MUTMAINNAH, CHOIRINA RACHMA NUR OCTAVINA, LUTFI ROHMAN, and ROHIM AMINULLAH FIRDAUS. "Antena Mikrostrip Double E-Shaped dengan Frekuensi 3,3 GHz untuk Aplikasi WiMax." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 10, no. 3 (July 19, 2022): 555. http://dx.doi.org/10.26760/elkomika.v10i3.555.

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ABSTRAKAntena mikrostrip double E-shaped untuk aplikasi WiMax melalui proses simulasi dan fabrikasi telah berhasil dirancang. Perancangan desain antena mikrostrip ini menggunakan bahan substrat FR-4 lossy dengan ketebalan 1,6 mm dan konstanta dielektrik 4,6. Dimensi substrat yang dirancang yaitu 45 mm x 52 mm x 1,6 mm. Hasil simulasi yang diperoleh yaitu antena mikrostrip bekerja di frekuensi 3,3 GHz, return loss -21 dB, VSWR 1,23, bandwidth 342 MHz, dan gain sebesar 3,5 dBi. Hasil pengukuran diperoleh antena mikrostrip bekerja di frekuensi 3,35 GHz, return Loss -22 dB, VSWR 1,26, bandwidth 265 MHz, dan gain sebesar 3,2 dBi. Baik hasil simulasi dan pengukuran pola radiasi yang dihasilkan membentuk pola bidirectional. Antena mikrostrip ini dapat diaplikasikan pada frekuensi Wimax.Kata kunci: Antena Mikrostrip, Double E-shaped, Frekuensi 3,3 GHz, WiMax, Return Loss ABSTRACTThe double E-shaped microstrip antenna for WiMax application through simulation and fabrication process has been successfully designed. The design of this microstrip antenna using a lossy FR-4 substrate material with a thickness of 1.6 mm and a dielectric constant of 4.6. The dimensions of the designed substrate are 45 mm x 52 mm x 1.6 mm. The simulation results obtained that microstrip antenna works at a frequency of 3.3 GHz, return loss -21 dB, VSWR 1.23, bandwidth 342 MHz, and gain of 3.5 dBi. The measurement results obtained that the microstrip antenna works at a frequency of 3.35 GHz, return loss of -22 dB, VSWR of 1.26, bandwidth of 265 MHz, and gain of 3.2 dBi. Both the simulation results and the resulting radiation pattern measurements form abidirectional pattern. This microstrip antenna can be applied at WiMax frequency. Keywords: Microstrip Antenna, Double E-shaped, Frequency 3.3 GHz, WiMax, Return Loss

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Hidayat, M. Reza, and Andre Yanuar. "ANTENA UWB (ULTRA WIDEBAND) MENGGUNAKAN BROADSIDE ARRAY CIRCULAR PATCH 2×2 DENGAN BANDWIDTH 500 MHZ UNTUK RADAR C BAND." Jurnal Elektro dan Telekomunikasi Terapan 6, no. 2 (December 18, 2020): 776. http://dx.doi.org/10.25124/jett.v6i2.3095.

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UWB (Ultra Wideband) merupakan suatu teknologi nirkabel yang dikembangkan sampai sekarang agar dapat memancarkan sejumlah data yang berukuran sangat besar pada jarak yang cukup dekat dengan bandwidth paling kecil sebesar 500 MHz dengan range pada frekuensi 3.1-10.6 GHz yang sering diaplikasikan untuk WIFI, smartphone dan radar, maka diperlukan perancangan antena yang dapat menghasilkan bandwidth yang cukup lebar. Penelitian ini membuat sebuah antena mikrostrip UWB dengan patch lingkaran untuk radar c-band yang disusun broadside array 2×2 menggunakan slot dengan teknik pencatuan langsung dan diharapkan bekerja pada range frekuensi c band yang memiliki nilai return loss > 20 dB, VSWR < 2, gain > 6 dBi, dan bandwidth > 500 MHz. Simulasi dilakukan dengan menggunakan perangkat lunak CST Studio Suite 2019 dengan memasukan parameter antena berdasarkan hasil perhitungan manual yang dilakukan, serta dilakukan optimasi untuk mendapatkan spesifikasi dari antena yang diharapkan. Dari hasil akhir simulasi didapatkan antena bekerja pada frekuensi kerja 6.204 – 6.760 GHz dengan frekuensi tengah di 6.5 GHz, return loss sebesar 41.1407 dB, lebar bandwidth sebesar 556.1 MHz dan VSWR sebesar 1.0176. Sedangkan pada hasil pengukuran antena mikrostrip patch lingkaran yang telah direalisasikan, antena bekerja pada frekuensi 6.150 – 6.720 GHz dengan frekuensi tengah di 6.390 GHz, return loss sebesar 30.62 dB, lebar bandwidth sebesar 570 MHz, dan VSWR sebesar 1.16.

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Zhao, Kai Yu, and Lin Li. "A Compact Lowpass Filter with Four Transmission Zeros Using Single-Sided Compact Microstrip Resonator Cells." Advanced Materials Research 487 (March 2012): 125–29. http://dx.doi.org/10.4028/www.scientific.net/amr.487.125.

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A compact lowpass filter using two single-sided compact microstrip resonator cells （CMRCs）with low insertion loss and broad bandwidth is presented. The cutoff frequency is about 1.4 GHz, the insertion loss is less than 0.6 dB and the 20dB bandwidth is up to the range from 2.1 GHz to 9.8 GHz by means of introducing four transmission zeros through two CMRCs. In addition, the simulated results demonstrate that the proposed filter is characterized by a compact size, low insertion loss, sharp transition, low return loss and wide bandwidth.

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Susanto, Heri Agus. "Desain dan Manufaktur Antena Heliks Oktafilar Pada Frekuensi 436,5 MHz Untuk Sistem Komunikasi Satelit." E-Link : Jurnal Teknik Elektro dan Informatika 6, no. 2 (November 13, 2018): 27. http://dx.doi.org/10.30587/e-link.v6i2.663.

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Antena heliks oktafilar merupakan antena modifikasi dari antena heliks. Proyek akhir ini berfokus pada perancangan dan pembuatan antena heliks bifilar pada frekuensi 436,5 MHz. Frekuensi 436,5 MHz merupakan frekuensi UHF-Band yang sering diaplikasikan dalam sistem komunikasi satelit saat ini. Hasil simulasi antena menunjukkan bahwa antena ini dapat bekerja pada frekuensi 436,5 MHz.Antena heliks oktafilar didesain menggunakan perancangan optimum berdasarkan spesifikasi yang telah ditetapkan dan dilakukan simulasi antena dengan menggunakan software CST Microwave Studio 2011 dengan hasil return loss sebesar -32,656 dB pada diameter kawat 1,5 mm dan bandwidth sebesar 7,33 MHz. sedangkan pada diameter kawat 1,5 mm, hasil return loss sebesar -23,545 dB pada diameter kawat 1,7 mm dan bandwidth sebesar 8,35 MHz. Nilai VSWR pada diameter 1,5 mm adalah 1,0477. Untuk diameter 1,7 mm VSWR sebesar 1,1425 dan gain yang diperoleh dari hasil simulasi pada diameter 1,5 mm adalah sebesar 1,99 dBi, sedangkan untuk gain pada diameter 1,7 mm sebesar 2,07 dBi.Hasil realisasi antena pada antena heliks oktafilar menghasilkan return loss sebesar -11,21 dB pada diameter kawat 1,5 mm dan bandwidth sebesar 60,954 MHz. sedangkan hasil return loss sebesar -11,07 dB pada diameter kawat 1,7 mm dan bandwidth sebesar 90,007 MHz. Nilai VSWR pada diameter 1,5 mm adalah 1,76. Untuk diameter 1,7 mm VSWR sebesar 1,79 dan gain yang diperoleh dari hasil simulasi pada diameter 1,5 mm adalah sebesar 3,63 dBi .sedangkan untuk gain pada diameter 1,7 mm sebesar 4,15 dBi.

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Zhou, Chang, Chen Ji, and Gen Ping Wu. "A Technique for Tunable Filters with Low Insertion Loss and Narrow Bandwidth." E3S Web of Conferences 38 (2018): 03039. http://dx.doi.org/10.1051/e3sconf/20183803039.

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A technique for tunable filters with low insertion loss and narrow bandwidth is proposed in the form of comb-line structure. Both resonant capacitor with pin-diodes and resonant inductance in the tunable filter were analyzed and the main source of insertion loss was obtained. A series of filters with same pin-diodes, center frequency, absolute bandwidth and low return loss was simulated. The results showed that, by changing the values of the resonant capacitor and inductance, insertion loss of the filter can be greatly restricted. This technique will allow the design of tunable LC filters with low insertion loss and narrow bandwidth.

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Ghosh, Kalyanbrata, and Sushrut Das. "Circularly polarized ACPW Fed CRLH-TL based ZOR antenna with band notch characteristics." International Journal of Microwave and Wireless Technologies 12, no. 5 (November 26, 2019): 387–97. http://dx.doi.org/10.1017/s1759078719001478.

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AbstractIn this paper, two asymmetric co-planar waveguide (ACPW) fed circularly polarized (CP) zeroth-order resonance (ZOR) antennas (Antenna I and II) are presented using a composite right and left-handed transmission line (CRLH-TL) approach. By adding a stub on the left side of the ACPW ground and adjusting its length, circularly polarization property has been achieved in Antenna I. The simulated 3 dB axial ratio bandwidth (ARBW) of Antenna I is 1750 MHz (3.50–5.25 GHz). Next, the left side ground plane of Antenna I is further defected by etching a quarter wavelength slit to introduce a notch band (Antenna II). Antenna II has an extended 10 dB return loss bandwidth of 2200 MHz (3.28–5.48 GHz) with a band notch from 4.18–4.65 GHz that isolates the WiMAX and 5.2 GHz WLAN bands. ARBWs of 1080 and 870 MHz are achieved in the first and second band of Antenna II. The overlapping 3 dB ARBW and 10 dB return loss bandwidths of Antenna II in these two bands are 770 and 830 MHz, respectively.

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Rahayu, Yusnita, Kurnia Alfikri, and Rhendy Theopilus Silalahi. "PERANCANGAN ANTENA DENGAN CIRCULAR LINE PATCH DAN THICK LINE UNTUK LTE FREKUENSI 1.8 GHZ." SINERGI 21, no. 1 (March 1, 2017): 59. http://dx.doi.org/10.22441/sinergi.2017.1.009.

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Antena Circular line patch memiliki bentuk patch circular dan antena Thick line memiliki patch rectangular. Kedua antena ini mampu bekerja secara optimal pada frekuensi 1.8 GHz. Software CST digunakan dalam perancangan dua antena ini dan dilakukan beberapa kali pengkarakterisasian. Untuk antenna circular line patch, didapat hasilnya yaitu pada frekuensi kerja 1.8 GHz dengan return loss -24.36 dB, bandwidth 160 MHz, dan gain 2.457 dBi. Antena thick line patch dan circular slot, didapat hasilnya yaitu pada frekuensi 1.8 GHz dengan return loss -26.493 dB, bandwidth 213 MHz, dan gain 2.26 dBi.

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Wang, Kuang Da, Wei Hong, and Ke Wu. "Broadband Transition between Substrate Integrated Waveguide (SIW) and Rectangular Waveguide for Millimeter-Wave Applications." Applied Mechanics and Materials 130-134 (October 2011): 1990–93. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.1990.

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In this paper, a broadband and simple vertical transition between substrate integrated waveguide and standard air-filled rectangular waveguide is design and experimentally verified. From full-wave simulation of the structure, a relative bandwidth of 19.5% in W-band with return loss better than 20dB is reached. Then, five copies of back-to-back connected transitions are fabricated on RT/Duroid 5880 substrate. The experimental results show that the transition pairs have an average of 15% relative bandwidth with return loss better than 12dB and insert loss lower than 1.2dB. To explain the differences between simulated and tested results, an error analysis is presented.

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22

Rochendi, Agus Dendi, Lukman Medriavin Silalahi, Imelda Uli Vistalina Simanjuntak, and Fauziah Anggini. "RANCANG BANGUN ANTENA MIKROSTRIP PATCH SEGITIGA ARRAY UNTUK MENINGKATKAN LEBAR PITA MENGGUNAKAN TEKNIK DEFECTED GROUND STRUCTURE." Journal of Informatics and Communication Technology (JICT) 2, no. 2 (December 23, 2020): 17–26. http://dx.doi.org/10.52661/j_ict.v2i2.57.

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Antena mikrostrip memiliki banyak variasi bentuk patch peradiasi yang berbeda-beda, salah satunya adalah bentuk segitiga sama sisi. Antena jenis ini memiliki sifat pola radiasi directional. Riset ini akan melakukan perancangan sebuah antena mikrostrip berbentuk triangular array menggunakan teknik Defected Ground Structure. Software yang diperlukan untuk merancang antena ini adalah CST Studio. Parameter yang digunakan antara lain VSWR, return loss, bandwidth, gain, dan bentuk pola radiasi akan dianalisa dengan metode perbandingan antara hasil simulasi dengan hasil fabrikasi. Sehingga dapat dianalisa pengaruh teknik DGS terhadap mikrostrip berbentuk patch triangular array pada frekuensi 5.8 GHz ini dapat memperbaiki karakteristik pada antena. Dari hasil pengukuran yang telah dilakukan antara lain, berdasarkan hasil fabrikasi antena didapatkan return loss sebesar -26.448, VSWR 1.1, bandwidth 242 MHz dan gain 3.4 dB. Sedangkan hasil simulasi didapatkan nilai return loss sebesar -15.90, VSWR 1.381, bandwidth 335 MHz dan gain sebesar 5.593 dB. Dimana pada hasil keseluruhan antara simulasi dan fabrikasi dapat simpulkan bahwa antena mikrostrip patch triangular array dengan metode Defected Ground Structure masih dalam range spesifikasi antena yang baik.

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Santoso, A. D., F. B. Cahyono, I. Suwondo, Arleiny, and B. B. Harianto. "Microstrip Antenna Design with Array Rectangular Patch 2x2 for Ship Radar at 2.2 GHz." Journal of Physics: Conference Series 2117, no. 1 (November 1, 2021): 012019. http://dx.doi.org/10.1088/1742-6596/2117/1/012019.

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Abstract This antenna uses FR4 substrate material with a substrate material thickness of 1.6 mm. The simulation results of the patch array microstrip antenna rectangular 2x2 elements with substrate material are FR4 able to work at a frequency of 2.2 GHz, with a frequency range of 2.1607 – 2.24 GHz, a return loss value of -18,086 dB with a bandwidth of 83.6 MHz, VSWR 1.284, the gain of 4.714 dB and beam width of 53.6 deg, these results will be compared with a single rectangular antenna and array antenna rectangular 1x2 that work at the frequency same of 2.2 GHz with range frequency of a single antenna 2.161 – 2.222 GHz, the return loss value - 13,934 with a bandwidth of 61 MHz, VSWR 1,502, a gain of 2.1988 dB and a beamwidth of 94.9 deg. As for the 1x2 array antenna, the value working range is of frequency a single antenna 2.164 – 2.247 GHz, the return loss value is -20.3717 with a bandwidth of 83 MHz, VSWR 1.21, a gain of 4.58 dB, and a beamwidth of 81.7 deg.

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R. A. K., Herma Nugroho, Sholeh Hadi P., and Erni Yudaningtyas. "Desain Antena Hexagonal Patch Array Berbasis Sistem Transfer Daya Wireless pada Frekuensi 2,4 GHz." Jurnal Elektronika dan Telekomunikasi 15, no. 2 (June 29, 2016): 33. http://dx.doi.org/10.14203/jet.v15.33-38.

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Pada penelitian ini telah didesain antena hexagonal patch array yang dapat digunakan sebagai perangkat catu daya wireless. Antena hexagonal patch array ini didesain untuk menangkap gelombang radio (RF) pada frekuensi 2,4 GHz yang dapat diaplikasikan sebagai antena pada Wireless Local Area Network (WLAN). Desain antena dilakukan menggunakan software CST Microwave studio, kemudian dilakukan pabrikasi dan pengukuran secara riil. Parameter pengujian antena hexagonal patch array meliputi return loss, Voltage Standing Wave Ratio (VSWR), gain, bandwidth, dan daya. Metode yang digunakan adalah pemodelan transmission line dan corporate feed line untuk pengaturan perubahan jarak antar patch antena. Perubahan variabel juga diteliti pengaruhnya terhadap parameter antena khususnya daya terima antena yang kemudian ditransmisikan ke rangkaian power harvester. Nilai parameter antena hasil simulasi menunjukkan nilai return loss adalah -33,38 dB, VSWR sebesar 1,041, gain sebesar 8,81 dBi, bandwidth adalah 0,084 GHz, daya sebesar 0,499 W (-3 dBm). Sedangkan parameter hasil pengukuran dari antena yang telah dipabrikasi adalah nilai return loss sebesar -33,21 dB, VSWR sebesar 1,048, gain sebesar 5 dBi, bandwidth adalah 0,145 GHz, daya sebesar -33 dBm.

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Kusumo, Herma Nugroho rono adi, Sholeh Hadi Pramono, and Erni Yudaningtyas. "Desain dan Implementasi Rectenna Hexagonal Patch Array Pada Frekuensi 2,4 GHz." Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) 10, no. 2 (January 23, 2018): 39–44. http://dx.doi.org/10.21776/jeeccis.v10i2.314.

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Abstrakâ€“ Penelitian rectenna yang dilakukan terdiri atas dua bagian yaitu antena yang berbentuk hexagonal array dan rectifier. Rectenna hexagonal array ini didesain agar bisa menangkap gelombang radio (RF) pada frekuensi 2,4 GHz yang dapat diaplikasikan untuk Wireless Local Area Network (WLAN). Perancangan dilakukan menggunakan software CST Microwave studio, kemudian dilakukan fabrikasi dan pengukuran secara riil. Parameter pengujian rectenna hexagonal patch array meliputi return loss, Voltage Standing Wave Ratio (VSWR), gain, bandwidth, pola radiasi dan efisiensi daya. Metode yang digunakan untuk desain dan analisis yaitu pemodelan transmission line dan corporate feed line untuk pengaturan perubahan jarak antar patch antena. Perubahan variabel juga diteliti pengaruhnya terhadap parameter antena khususnya daya terima antena yang kemudian ditransmisikan ke rangkaian rectifier. Nilai parameter hasil simulasi menunjukkan nilai return loss adalah -33, 38 dB, VSWR sebesar 1,041, gain sebesar 8,81 dBi, bandwidth adalah 0,084 GHz, daya sebesar 0,5 W sedangkan hasil pengukuran dari fabrikasi, return loss sebesar -33,21 dB, VSWR sebesar 1,048, gain sebesar 5 dBi, bandwidth sebesar 0,145 GHz.Â Kata Kunciâ€”Rectenna, Patch, Array, Corporate Feed Line, VSWR

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Atmaja, Andik. "Zeroth Order Resonator Antenna Dual Frekuensi Menggunakan Metode Composite Right Left Handed-Tranmission Line." TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol 4, no. 2 (November 20, 2018): 114–20. http://dx.doi.org/10.15575/telka.v4n2.114-120.

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Pada penelitian ini telah didesain antena dual frequency sebagai perangkat untuk menangkap gelombang radio (RF) pada frekuensi 541 MHz dan 2,4 GHz menggunakan metode Composite Right Left Handed- Tranmission Line (CRLH-TL). Metode ysng digunakan merupakan pengembangan dari struktur metamaterial dengan menghilangkan atau tidak menggunakan ground stub pada antenna, hal ini dilakukan untuk mendapatkan dimensi antenna yang relative kecil. Parameter pengujian antenadual frekuensi ini meliputi return loss, VSWR, dan bandwidth. Nilai parameter return loss antenna pada frekuensi 541.730MHz sebesar -31.92 dB sedangkan pada frekuensi 2.4207 GHz sebesar -27.86 VSWR hasil pengukuran antenna frekuensi 541.730 MHz memiliki VSWR 1.038 sedangkan pada frekuensi 2.420 GHz. pada frekuensi 541.730 MHz memiliki bandwidth sebesar 39.980 MHz, sedangkan pada frekuensi 2.420 GHz memiliki bandwidth sebesar 219.890 MHz.

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Ilyasah, Ahmad Heri, M. Reza Hidayat, and Salita Ulitia Prini. "2×1 Truncated Corner Microstrip Array Antenna to Increase Gain and Bandwidth for LTE Applications at 2.3 GHz Frequency." Jurnal Elektronika dan Telekomunikasi 22, no. 1 (August 31, 2022): 14. http://dx.doi.org/10.55981/jet.436.

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In the development of telecommunications in Indonesia, cellular networks, especially 4G, have grown rapidly since the launch of 4G LTE services. In the implementation of LTE, an antenna that has performance values of bandwidth, working frequency, VSWR, and gain that meets the specifications was needed. This research aims to study a microstrip antenna for LTE applications at a frequency of 2.3 GHz on its effect on the gain and bandwidth parameters using the 21 array method and the truncated corner which was simulated using HFSS software. The microstrip antenna was made using FR4 substrate with a thickness (h) of 1.6 mm and a dielectric constant of 4.4 with an expected working frequency of 2.3 GHz with the desired parameters return loss < -10 dB, VSWR < 1.5, gain > 2 dB, and bandwidth > 200 MHz in the simulation. Based on the simulation results of the microstrip antenna with the 21 truncated corner array method, the return loss value= 18.171 dB, VSWR= 1.281, gain= 3.963 dB, and bandwidth= 283 MHz, which worked at a frequency of 2.3 GHz. Meanwhile, based on the results of the antenna measurements that have been implemented, the return loss value was= 11.07 dB, and the VSWR= 1.49, which works at a frequency of 2.2 GHz.

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Ash-Shiddiq, Haniifah Arif, Harfan Hian Ryanu, and Levy Olivia Nur. "WEARABLE ANTENNA DUAL BAND WITH ELECTROMAGNETIC BAND GAP (EBG) STRUCTURE FOR HEALTH APPLICATIONS." [CEPAT] Journal of Computer Engineering: Progress, Application and Technology 2, no. 01 (February 26, 2023): 42. http://dx.doi.org/10.25124/cepat.v2i01.5811.

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Telemedicine can solve several issues in the healthcare system. The wearable antenna works with the Industrial, Scientific, and Medical (ISM) band for wireless body area network (WBAN) communications. Wearable antennas are lightweight, easy to make, and so on. This antenna application's bandwidth is limited by the thin substrate. This research will create a wearable planar monopole antenna with a circular patch that can operate at 2,4 and 5,8 GHz. Antenna without the UC-EBG structure and antenna with the UC-EBG structure were tested. The simulation results without UC-EBG show that the return loss is -14.629 dB and -28,639 dB, the VSWR is 1,456 and 1,077, the bandwidth is 4988 MHz, and the gain is 2,517 dBi and 4,270 dBi. The simulation results with the addition of UC-EBG show that the return loss is -13,835 dB and -17,46 dB, the VSWR is 1,511 and 1,309, the bandwidth is 1480 MHz and 2320 MHz, and the gain is 2,869 dBi and 5,208 dBi. The measurement results with UC-EBG show that the return loss is -13,134 dB and -18,421 dB, the VSWR is 1,566 and 1,273, the bandwidth is 1080 MHz and 960 MHz, and the gain is 2,198 dBi and 4,98 dBi.

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Khidhir, Ali H. "Dual-band Rectangular Microstrip Patch Antenna for WiMAX Wireless Communications by Chemical Method." Journal of Physics: Conference Series 2114, no. 1 (December 1, 2021): 012022. http://dx.doi.org/10.1088/1742-6596/2114/1/012022.

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Abstract The rectangular microstrip patch antenna (RMPA) had designed and manufactured to operate in two working areas of the worldwide interoperability for microwave access (WiMAX) communication system. Flame retardant (FR-4) material had used for implementation, and the total antenna size was 57.22 × 1.6 mm3. The chemical method was used to implement the RMPA. The proposed antenna is capable of working at frequencies 2.51 GHz and 3.87 GHz experimentally. The results were -21.62 dB of return loss, and 50 MHz of bandwidth for the first frequency. Also, for second frequency was -20.01 dB of return loss, and 80 MHz of bandwidth.

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Shanmuganantham, T., K. Balamanikandan, and S. Raghavan. "CPW-Fed Slot Antenna for Wideband Applications." International Journal of Antennas and Propagation 2008 (2008): 1–4. http://dx.doi.org/10.1155/2008/379247.

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A new coplanar waveguide (CPW)-fed wideband printed slot antenna is presented, and the impedance characteristics of this antenna with different sizes of tapers are discussed. The effect of tapering angle with the resonant frequency is also observed. The fundamental parameters of the antenna such as bandwidth, return loss, gain, radiation pattern, and polarization are obtained. All meets the acceptable antenna standards. The measured input impedance bandwidth (return loss < −10 dB) of the prototype antenna is 52% (4.27–7.58 GHz). The radiation patterns are bidirectional in both planes. This antenna can be part of various wireless communication systems.

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Faroqi, Adam, Muhammad Ali Ramdhani, Dzikron Dwi Andika, and Suryadi Soedarsono. "Design of 2.75-2.85 Ghz Frequency Microstrip Band Pass Filter with Square Open-Loop Resonator in Radar Method." International Journal of Engineering & Technology 7, no. 2.29 (May 22, 2018): 711. http://dx.doi.org/10.14419/ijet.v7i2.29.14003.

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Radar is an important component for people. A number of functions could be taken into account on a various aspect in term of quantifying the distance of a specific object, developing a map, and/ or forecasting climate. Generally, one of the main instruments within a radar is a filter. The aim of this study is to design a simple Band Pass Filter which able to be effectively worked on frequency 2.75–2.85 GHz. The filter is designed at the mid frequency of 2.8 GHz with ≤ -20 dB of Return Loss Range, ≥ -3 dB for Insertion Loss, and 100 MHz for Bandwidth, then it is manufactured into a Square Open-Loop Resonator microstrip. The filter uses Rogers R04035B for its substrate with 3.48 of Dielectric Constant Values and 1.524 mm of Substrate Thickness (h). The radar’s filter is simulated by a software of Computer System Technology (CST) suite 2015. The simulation results -31.608995 dB for Return Loss Range, -2.0529871 dB, and 100 MHz for Insertion Loss and Bandwidth respectively. By the end of this process, this instrument is applied and a Network Analyzer is then utilized to get a comparable output. It produces a quite different ranges of -23.519 dB for Return Loss, -2,183 dB for Insertion Loss and 90 MHz for Bandwidth. The study results a design of radar’s simple band pass filter which work effectively on frequency 2.75–2.85 GHz.

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Claudiani, Trushero Kharisma, Koesmarijanto Koesmarijanto, and Hendro Darmono. "Rancang Bangun Antena Semi Circular Dengan Teknik GDS (Defect Ground Structure) untuk Meningkatkan Bandwidth Antena Pada Aplikasi WIFI." Jurnal Jartel: Jurnal Jaringan Telekomunikasi 11, no. 1 (March 31, 2021): 12–16. http://dx.doi.org/10.33795/jartel.v11i1.18.

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Kebutuhan yang semakin meningkat akan banyaknya data yang dikirim dan kecepatan pengiriman data melalui teknologi wireless mengakibatkan tingginya minat terhadap perangkat dengan Bandwidth lebar. Memperbaiki desain antena adalah salah satu cara untuk meningkatkan Bandwidth. Antena didesain sedemikian rupa agar mendapatkan parameter antena yang bernilai efektif salah satunya untuk meningkatkan bandwidth antena. Salah satu teknik yang digunakan untuk memperbaiki parameter antena miksrostrip yaitu teknik Defect Ground Structure (DGS) dengan metode yang digunakan adalah perhitungan, simulasi dan pengujian. Hasil pengujian antena mikrostrip array semicircular tanpa DGS diperoleh nilai parameter return loss sebesar -13,7 dB dan nilai VSWR sebesar 1,518 serta memiliki gain bernilai 1,3 dBi pada frekuensi 2455 MHz. Antena ini memiliki bentuk pola radiasi bidirectional. Bandwidth antena yang diperoleh sebesar 14 MHz. Hasil pengujian antena mikrostrip array semicircular dengan DGS diperoleh nilai parameter return loss sebesar -14,4 dB dan nilai VSWR sebesar 1,469 serta memiliki gain bernilai 2,8 dBi pada frekuensi 2455 MHz. Antena ini memiliki bentuk pola radiasi directional. Bandwidth antena yang diperoleh sebesar 10 MHz. Kesimpulan dari penelitian ini adalah antena mikrostrip array semicircular tanpa DGS mempunyai bandwidth yang lebih kecil dibandingkan dengan antena mikrostrip array semicircular dengan DGS yaitu dengan selisih sebesar 3,5 MHz.

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Utami, Eva Yovita Dwi, Fransiska Melathi Cahyaningtyas, and Andreas Ardian Febrianto. "Perancangan Antena Printed Monopole Patch Elips dengan Konfigurasi EMA dan EMB untuk Pembaca RFID pada Frekuensi UHF." Techné : Jurnal Ilmiah Elektroteknika 20, no. 1 (March 14, 2021): 13–26. http://dx.doi.org/10.31358/techne.v20i1.241.

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Pada penelitian ini dirancang antena mikrostrip printed monopole patch elips konfigurasi EMA dan EMB untuk aplikasi pembaca RFID pada pita frekuensi UHF. Bentuk patch elips memiliki dua jenis konfigurasi, yaitu EMA (pencatuan pada sumbu mayor) dan EMB (pencatuan pada sumbu minor). Printed monopole ditambahkan pada bagian ground plane untuk memperbesar bandwidth antena. Antena disimulasikan dan direalisasikan menggunakan bahan FR4 epoxy dengan nilai permitivitas relatif sebesar 4,65 dan ketebalan 1,6 mm, sedangkan patch peradiasi dan ground plane menggunakan bahan tembaga. Hasil simulasi menunjukkan untuk konfigurasi EMA, diperoleh bandwidth sebesar 641,1 MHz dan gain 2,533 dB. Sementara untuk konfigurasi EMB diperoleh bandwidth sebesar 340,54 MHz dan gain sebesar 2,181 dB. Setelah antena direalisasikan, diperoleh hasil pengujian dengan konfigurasi EMA adalah return loss = -43,912 dB, VSWR = 1,013, bandwidth sebesar 1,053 GHz, dan gain = 6,41 dB. Sementara hasil pengujian dengan konfigurasi EMB adalah return loss = -32,409 dB, VSWR = 1,049, bandwidth sebesar 584 MHz, dan gain = 6,2 dB. Hasil simulasi maupun pengujian menunjukkan bahwa konfigurasi EMA memiliki bandwidth dan gain yang lebih baik daripada EMB. Namun demikian, kedua konfigurasi ini menghasilkan pola radiasi yang sama, yaitu pola radiasi omnidirectional pada bidang azimuth dan pola bidirectional pada bidang elevasi.

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Damayanti, Denti Agustina, Teguh Prakoso, and Aghus Sofwan. "PERANCANGAN ANTENA MONOPOL CETAK UNTUK KOMUNIKASI ULTRA WIDEBAND DENGAN ANALISIS MODE KARAKTERISTIK." TRANSIENT 7, no. 1 (March 12, 2018): 20. http://dx.doi.org/10.14710/transient.7.1.20-27.

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UWB (Ultra Wideband) adalah sistem komunikasi jarak pendek yang mempunyai bandwidth yang sangat lebar beroperasi pada frekuensi 3,1-10,6 GHz. Dengan bandwidth operasi UWB yang besar maka diperlukan suatu antena dengan bandwidth yang besar pula, salah satu pendekatan untuk memperlebar bandwidth antena adalah dengan menggunakan Theory Characteristic Mode (TCM). Perancangan antena monopol cetak pada frekuensi kerja 3,1-10,6 GHz menggunakan bahan FR-4 dengan ketebalan 1,575 mm, dan konstanta dielektrik sebesar 4,3. Simulasi pancaran gelombang elektromagnetik menggunakan perangkat lunak CST Studio Suite 2016. Dari hasil simulasi, antena monopol cetak mempunyai bandwidth 8,4 GHz dengan rentang frekuensi 2,5 – 10,9 GHz. Pada hasil simulasi frekuensi 3,1 GHz, 5 GHz, dan 10,6 GHz yang diperoleh nilai return loss kurang dari -10 dan VSWR sudah kurang dari 2, serta nilai gain lebih dari 2 dB dengan pola radisi omnidirectional. Hasil pengukuran antena monopol cetak mempunyai bandwidth 7,735 GHz dengan rentang frekuensi 3,18-10,915 GHz. Pada hasil pengukuran frekuensi 3,1 GHz, 5 GHz, dan 10,6 GHz yang diperoleh nilai return loss kurang dari -10 dan VSWR sudah kurang dari 2, serta nilai gain sebesar 3,27 dB dengan pola radisi omnidirectional. Antena tersebut telah memenuhi spesifikasi komunikasi ultra wideband.

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35

Liu, Cheng Peng, Jian Gang Shi, Zheng Rong He, and Wei Zou. "DC~10.6GHz Ultra Wideband SPDT Switch." Advanced Materials Research 798-799 (September 2013): 520–25. http://dx.doi.org/10.4028/www.scientific.net/amr.798-799.520.

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a novel configuration for a novel ultra wideband switch is presented in this paper. This switch using 0.5um GaAs process in ADS2008 simulator. Switch should be designed to trade-off insertion loss, isolation, bandwidth, and return loss. The aims of design are to provide low insertion loss along with high isolation. The design using integration inductor and resistor in parallel, and this switch exhibits high performance: over DC-10.6GHz, insertion loss is lower than-1.624dB; the ripple variation of insertion loss is less than ±0.25dB; The isolation is lower than-51.336dB; input return loss is lower than-16.402dB; on state, output return loss is lower than-15.919dB; off state, output return loss is lower than-18.294dB; on and off time are less than 4ns.

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36

Sinha, Devansh, Mohit Vyas, and Sanjay Singh Kushwah. "DESIGN AND SIMULATION OF DIELECTRIC RESONATOR ANTENNA (DRA) WITH CO-AXIAL PROBE FOR WIRELESS APPLICATION." International Journal of Engineering Technologies and Management Research 5, no. 2 (April 27, 2020): 75–83. http://dx.doi.org/10.29121/ijetmr.v5.i2.2018.616.

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In this paper a Dielectric resonator antenna (DRA) consists of a rectangular geometry and a printed rectangular patch on top of it in order to achieve better performance and operation without significant increase in antenna size. DRA structure is proposed at a height of 2 mm from the ground plane and patch incorporated at the height of 3.638 mm. This work is mainly focused on increasing the potential parameters of DRA and analyze high frequency band. The proposed antenna is designed to resonate at 25 GHz and by varying the DRA size ‘a, then the simulated results shows variation in Return Loss. The impedance bandwidth of the DRA (23.417 GHz-26.961 GHz) and return loss is 26.543951dB.The proposed DRA is analyzed and design using CST-MSW (2010). The simulated result shows the Far field, smith chart. We have estimated the wavelength, frequency, bandwidth, Return loss and directivity.

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Garg, Anshuman, and Anjana Goen. "Enhancement Various Parameters of Rectangular Microstrip Patch Antenna with Metamaterial." International Journal of Electrical and Electronics Research 2, no. 3 (September 30, 2014): 28–31. http://dx.doi.org/10.37391/ijeer.020303.

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The antenna along with the proposed Meta material structure designed to Resonate at 8.0GHz frequency. But the proposed Meta material cover significantly reduces the return loss and increases the bandwidth, and gain of the antenna in comparison to rectangular micro strip patch antenna. The Metamaterial substrate has a potential to reduce the circuit size of the antenna as well as maintain the amplitude of the return loss at the specific resonant frequency. The most attractive feature of the substrate is the ability of enhancing the bandwidth of a patch antenna at 8.0GHz frequency. The system is firstly modelled by Computer Simulation Technology Software (CST-2010). With the help of CST-2010, The return loss, directivity, & radiation pattern of compact rectangular Patch Antenna operating at 8.0 GHz frequency and rectangular Patch Antenna along with designed Meta material shape have been evaluated in this work.

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38

Razzaz, Faroq, Saud Saeed, and Majeed Alkanhal. "Compact Ultra-Wideband Wilkinson Power Dividers Using Linearly Tapered Transmission Lines." Electronics 11, no. 19 (September 27, 2022): 3080. http://dx.doi.org/10.3390/electronics11193080.

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In this work, compact extended ultra-wideband (UWB) Wilkinson power dividers (WPDs) using tapered transmission lines are analyzed, designed, and measured. Utilizing carefully designed tapered transmission sections results in widening the operational bandwidth and reducing the element dimensions. Analytical models and design procedures of simple and compact and equal and unequal UWB WPDs based on linearly tapered transmission lines are developed and outlined in this paper. Four different configurations of equal and unequal power dividers are designed and presented. The number and locations of the isolation resistors have a noticeable effect on extending the operational bandwidth of the dividers. The presented designs of the WPDs have superior performance over extended bandwidths. The simulation and experimental results are in very good agreement with good insertion and return loss, good matching, and isolation, over the extended UWB operational bandwidth from 3 GHz to 27 GHz.

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Handika, Diana Muttia. "Rancang Bangun Antena Mikrostrip Patch Circular Untuk Aplikasi 5G." Data Sciences Indonesia (DSI) 2, no. 1 (June 9, 2022): 9–12. http://dx.doi.org/10.47709/dsi.v2i1.1518.

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Pada paper ini dirancang antena mikrostrip circular yang bekerja pada frekuensi resonansi 26 GHz dan 38 GHz. Frekuensi ganda dibangkitkan dengan menambahkan U-slot pada bidang patch, kemudian penyesuaian ketinggian bertingkat pada slot untuk mendapatkan frekuensi tengah yang diinginkan. Hasil simulasi dari rancangan mikrostrip circular untuk frekuensi 26 GHz diperoleh nilai return loss -21,75 dB, VSWR 1,17 dan bandwidth 236 MHz, sedangkan pada frekuensi 38 Ghz return loss -25,49 dB, VSWR 1,11 dan bandwidth 719 MHz. Nilai gain sebesar 8,12 dBi dengan pola radiasi unidirectional. Hasil rancangan telah memenuhi standar antenna untuk jaringan 5G, dengan radius (a) = 3,14 mm dapat diaplikasikan pada perangkat komunikasi nirkabel yang membutuhkan miniaturiasi antenna.

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Burlakoti, Suroj, and Prakash Rai. "Performance Comparison of Swastika and Rectangular Shaped Microstrip Patch Antenna." Kathford Journal of Engineering and Management 1, no. 1 (December 14, 2018): 11–14. http://dx.doi.org/10.3126/kjem.v1i1.22015.

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In this paper, Microstrip patch antennas with rectangular and swastika shape of patch are designed and its performance parameters are compared with each other. Rectangular and Swastika shaped patch are considered in this paper with common rectangular ground plane. The antenna is simulated at 2.4 GHz using HFSS simulation software. This work mainly includes modification of antenna patch to improve the antenna parameters. The parameters of antenna such as Return loss, VSWR Bandwidth and radiation pattern are compared using simulation. The performance of Swastika shaped antenna was found to be better than rectangular shaped microstrip patch antenna with improved Return Loss, VSWR, Bandwidth and Radiation Pattern.

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Naghdehforushha, Seyed, Mahdi Bahaghighat, Mohammad Salehifar, and Hossein Kazemi. "Design of planar plate monopole antenna with vertical rectangular cross-sectional plates for ultra-wideband communications." Facta universitatis - series: Electronics and Energetics 31, no. 4 (2018): 641–50. http://dx.doi.org/10.2298/fuee1804641n.

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In this paper, a novel design for planar plate monopole antennas is proposed with applications to ultra-wide band (UWB) communications. To verify the proposed antenna design, simulations are performed by means of CST and HFSS software tools, showing that the impedance bandwidth is significantly increased by vertical cross-sections. By adding a series of parameters to the vertical cross sections, the antenna efficiency is effectively enhanced by achieving a return loss of 10 dB over the bandwidth range between 3.1 GHz and 10.6 GHz. In addition, our experimental results demonstrate that the fabricated antenna has a return loss performance similar to that obtained by the simulation results.

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Deng, Xida, Ge Dong, Xuan Dai, and Jinxiang Deng. "Compact Full Ka-Band Waveguide Directional Coupler Based on Rectangular Aperture Array with Stairs." Micromachines 12, no. 7 (June 25, 2021): 745. http://dx.doi.org/10.3390/mi12070745.

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This article presents a compact 3 dB waveguide directional coupler with full waveguide bandwidth. It consists of a pair of rectangular waveguides with stairs structures in the coupling region. The waveguides are placed parallel to each other along their broad wall, which has a rectangular aperture array. The compact size, broad bandwidth, good in-band coupling flatness, and good return loss are achieved by using the proposed structure. For verification purposes, a prototype of the proposed coupler was designed, manufactured, and measured. The experimental results show that over the full waveguide bandwidth a return loss of input port better than 17.46 dB, coupling strength varying between −2.74 dB and −3.80 dB, power-split unbalance within 0.76 dB, and an isolation better than 20.82 dB were obtained. The length of the coupling region was only 15.82 mm.

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Rajurkar, Harish, and Dr Sudhir Akojwar. "On the Parameters consideration & analysis of menderline antenna for wireless sensor networks." International Journal of Engineering & Technology 7, no. 2.23 (April 20, 2018): 201. http://dx.doi.org/10.14419/ijet.v7i2.23.11920.

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The objective of this paper is to present an analysis of menderline monopole antennas, which are applicable to wireless sensor networks in agricultural. In this paper, a 2.4 GHz Menderline Monopole Antenna (MLMA) is proposed for wireless sensors network. This work presents the detailed analysis of menderline antenna and variation of mender line parameter on antenna performance. A MLMA is modeled at 2.4 GHz with substrate of FR4 with dielectric constant (εr) of 4.4. The performance of the MLMA is enhanced by using optimum geometry. The better performance in terms of bandwidth and impedance matching is found. For the proposed MLMA, the bandwidth of 149MHz and return loss of -23.98dB is obtained. The proposed work shows good performance of MLMA, in terms of geometric size, bandwidth and return loss which makes it suitable for wireless sensor network.

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Lu, Di, N. Scott Barker, and Xiao-Hong Tang. "Miniaturized dual-band filter with return loss bandwidth and transmission zero control." International Journal of Microwave and Wireless Technologies 9, no. 7 (February 10, 2017): 1459–65. http://dx.doi.org/10.1017/s1759078717000071.

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In this paper, a compact dual-band bandpass filter (DB-BPF) using new dual-mode resonator-loaded resonators (DM-RLRs) is presented and investigated to simultaneously achieve controllable return loss (RL), bandwidth (BW) and transmission zeros (TZs), and the simple strategy for this type of filter design is proposed. The DB-BPF consists of two high-flexibility DM-RLRs with separated electric and magnetic coupling (SEMC). Specifically, the proposed DM-RLR provides the DB-BPF with center frequency control as well as RL control, and SEMC is utilized for the BW and TZ control. To facilitate the design, a simple optimization-based design strategy is proposed and employed, resulting in an example layout. Finally, the example filter, with center frequencies of 1.57 GHz (channel 1 for GPS) and 3.5 GHz (channel 2 for WiMAX), is fabricated and measured. The measurement insertion loss and RL are 0.9/0.9 and 17/20 dB. The fabricated DB-BPF also exhibits a compact size of 0.12λg × 0.08λg at 1.57 GHz.

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Khinda, Jaspal Singh, Malay Ranjan Tripathy, and Deepak Gambhir. "Improvement in Depth of Return Loss of Microstrip Antenna for S-Band Applications." Journal of Circuits, Systems and Computers 27, no. 04 (December 6, 2017): 1850058. http://dx.doi.org/10.1142/s0218126618500585.

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For S-band applications, a microstrip fractal antenna is designed by extending narrow impedance bandwidth into wide impedance bandwidth with use of partial ground plane. In the designed fractal antenna, the six elliptical slots in ground plane and two elliptical slots in radiating patch are embedded to improve the depth of return loss. Further, the parametric study is performed on width of microstrip feeding line, position/size of ellipses in radiating patch and ground plane to achieve mismatch loss [Formula: see text] 0.044[Formula: see text]dB and power delivered to antenna 99%, i.e., return loss [Formula: see text][Formula: see text]dB for S-band. The simulated antenna results are obtained using electromagnetic solver software and fabricated antenna results are measured using Vector Network Analyzer Bench MS46322A and they are found to be in good agreement.

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Kirana, Nurista Wahyu. "Desain dan Analisis Antena Mikrostrip Rectangular Dengan Slot “ m ” Untuk Aplikasi WLAN 2,4 GHZ." JE-Unisla 6, no. 1 (March 26, 2021): 453. http://dx.doi.org/10.30736/je.v6i1.581.

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Microstrip is being developed in various wireless applications, one of them is the WLAN (Wireless Local Area Network). In this study, "m" slot was added to the center of the rectangular patch microstrip antenna which is designed using FR4 Epoxy material, also 2.4 GHz WLAN frequency band covered by the antenna. The thickness of the patch material is 1,5mm and the dielectric constant is 4,3. The Antenna is designed and simulated using CST Microwave Studio software. By changing the position of the microstrip antenna slot, several antenna parameter values were obtained including gain, return loss, bandwidth, and VSWR (Voltage Standing Wave Ratio). The microstrip antenna simulation results showed the best return loss value of -37.46 dB, VSWR of 1.027 at the resonant frequency of 2.446 GHz, and presented a gain of 3.43 dBi. From the results, the use of "m" slot has several effecs of increasing the return loss value up to 42.63% and bandwidth by 5.17%.

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Rohadi, Erfan, Mochammad Firdaus Ali, Indrazno Siradjuddin, Awan Setiawan, Amalia Amalia, and Yudhi Darmawan. "Design and Analysis of Ultra Low-Profile ILA on a Rectangular Conducting Plane." International Journal of Engineering & Technology 7, no. 4.44 (December 1, 2018): 55. http://dx.doi.org/10.14419/ijet.v7i4.44.26863.

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The unbalanced fed ultra low profile inverted L antenna on a rectangular conducting plane is proposed and analyzed numerically and experimentally. By adjusting the length and height of inverted L antenna, the feed point position, and the size of conducting plane, the return loss bandwidth and the directivity can be controlled. The return loss bandwidth of 2.57 % and the directivity of 4.34 dBi are obtained, when the size of conducting plane is 0.245  (: wavelength) by 0.49 , and the antenna height is /30. The input impedance of the proposed antenna is compared with those of the conventional base-fed inverted L antenna and the base fed inverted F antenna. Although the directivity of base-fed inverted L antenna is almost same as that of proposed antenna, its input resistance becomes very low. In the base fed inverted F antenna, the return loss larger than 10 dB is not satisfied in the case of the antenna height less than 0.05 .

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Koesmarijanto, Koesmarijanto, Sania Ahva Y, and Hendro Darmono. "Antenna design and implementation patch diamond array 2x4 elements with DGS shaped dumbbell square head at frequency 2.4 GHz." Jartel 13, no. 1 (February 11, 2023): 36–42. http://dx.doi.org/10.33795/jartel.v13i1.504.

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— Technological advances in the field of telecommunications without cables or wireless are growing rapidly by utilizing radio waves as transmission. This happens because people's mobility is currently quite high and requires practicality in the use of devices. The discussion in this paper is about the comparison of the design and fabrication performance of a diamond microstrip patch antenna composed of a 2x4 element array using DGS and without using DGS. The design was carried out using the CST 2018 simulator. The DGS was placed on a PCB ground plane with an epoxy fiberglass substrate having a dielectric constant of 4.58. This is measured by improving the value of VSWR, return loss, and bandwidth. The application of the working frequency used by the microstrip antenna is at (2401-2495) MHz for WIFI (Wireless Fidelity) networks. Microstrip antennas have a narrow bandwidth shortage, so they require bandwidth widening using the DGS (Defected Ground Structure) technique in the form of dumbbell square ahead. The resulting bandwidth is 15 MHz wider than a microstrip antenna without DGS. This research is in accordance with the antenna test parameters, which have a return loss value of -24.3dB, VSWR 1.12 and a bandwidth of 34 MHz.

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Li, Teng, and Wenbin Dou. "A wideband right-angle transition between thin substrate integrated waveguide and rectangular waveguide based on multi-section structure." International Journal of Microwave and Wireless Technologies 8, no. 2 (February 27, 2015): 185–91. http://dx.doi.org/10.1017/s1759078715000185.

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In this paper, a novel wideband right-angle transition between thin substrate integrated waveguide (SIW) and rectangular waveguide (RWG) based on multi-section structure operating at center frequency 31.5 GHz is presented. A multi-section SIW with a rectangular aperture etched on the broad wall and two stepped ridges embedded in the RWG flange are introduced to obtain a wide impedance matching. The simulations show that the bandwidth with return loss better than 20 dB is about 17 GHz. In order to verify our designs, two back-to-back transitions with different lengths are fabricated and measured. The experimental results agree well with simulations. The proposed component shows an insertion loss less than 0.44 dB and a return loss better than 14.5 dB over 12.15 GH, which corresponds to 38.57% bandwidth.

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Singh, Amandeep, and Surinder Singh. "Miniaturized Wideband Aperture Coupled Microstrip Patch Antenna by Using Inverted U-Slot." International Journal of Antennas and Propagation 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/306942.

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This paper presents a linear polarized aperture coupled inverted U-slot patch antenna with small steps at the edges. The proposed design exhibits wideband behavior, acceptable return loss, VSWR, gain, small size, and less complexity. The theoretical analysis is based on the finite element method (FEM). This design has wide bandwidth, good return loss, VSWR, and radiation characteristics by implanting the inverted U-shaped stepped slots on a single aperture coupled patch. The proposed antenna design shows the measured return loss within acceptable range throughout the band (11.08 GHz–13.25 GHz) and maximum return loss is achieved with proper impedance matching. In this paper, the design considerations are presented and results are validated by the calculated and measured parameters.

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Journal articles on the topic 'RETURN LOSS BANDWIDTH'

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