Artykuły w czasopismach: „MICROSTRIP LIVE”

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Zarin, Muhammad, Gulzar Ahmad i Faheem Ali. "Design and Implementation of Microstrip Patch Antenna Array for “5G” HD Live Video Streaming Applications". International journal of Engineering Works 9, nr 12 (2022): 181–86. http://dx.doi.org/10.34259/ijew.22.912181186.

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Chryssomallis, M., K. Siakavara i J. N. Sahalos. "A study of open thick microstrip: the hybrid quasistatic approximation". Canadian Journal of Physics 67, nr 8 (1.08.1989): 747–52. http://dx.doi.org/10.1139/p89-131.

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In this paper we study microstrips with rectangular and rounded edge cross sections. A hybrid quasistatic method is applied and the effective permittivity and the attenuation constant of the microstrip are found. Instead of the dielectric constant of the substrate an ideational one is used that depends on the geometry and the frequency. The attenuation constant for the rectangular microstrip was found to be in good agreement with values given in the literature. A microstrip with a rounded edge cross section has a smaller attenuation constant due to the conductor than that of a microstrip with a rectangular crosssection. Thus, a rounded edge microstrip is preferred because it will give an appreciable effect in reducing the ohmic losses of the line.

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Li, Mingshun, Wei Song i Xinqing Sheng. "A Broadband Circularly Polarized Antenna with Stable Gain Based on Square Slotted Ground". Journal of Physics: Conference Series 2464, nr 1 (1.03.2023): 012020. http://dx.doi.org/10.1088/1742-6596/2464/1/012020.

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Abstract In this paper, a circularly polarized (CP) low cost, low profile antenna with broadband stable gain is proposed. The antenna consists of a grounded square slot with two inverted-L shaped microstrips, an asymmetrical Y-shaped microstrip radiator with a stub, and several fine tuning elements. The CP radiation is first realized by using the Y-shaped microstrip line, which incorporates a stub is to realize better impedance matching. Next, by utilizing two Inverted-L microstrips into the corners of the grounded slot, the axial ratio (AR) characteristic can be further improved. A wider AR bandwidth (ARBW) can be achieved by utilizing four rectangular strips as fine tuning elements. Simulation results show the proposed antenna demonstrates a radiation with a CP bandwidth of 50% and a stable gain with average value of 5.18 dBi.

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Aina, Taiwo Samuel. "Investigation on Performance of Microstrip Patch Antenna for a Practical Wireless Local Area Network (WLAN) Application". International Journal for Research in Applied Science and Engineering Technology 10, nr 1 (31.01.2022): 221–28. http://dx.doi.org/10.22214/ijraset.2022.39799.

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Abstract: The performance of a microstrip patch antenna for a practical wireless local area network application is investigated in this research. This design is built around the transmission line concept. The antenna design substrate is FR4 (lossy) with a dielectric constant (Er) of 4.3 dielectric material, and the ground and patch materials are copper (annealed). The substrate is 71.62mm in width and 55.47mm in length. The height of the dielectric material is 1.6mm, which is the normal size for FR4 material. The conducting patch element has a width of 35.81mm and a length of 27.73mm for a resonance frequency of 2.573 GHz. A simulation with CST studio suite was used to optimise the antenna design. Keywords: Microstrio patch antenna, CST suite, WLAN application, Transmission line, Antenna design

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Rhee, Eugene, i Ji Hoon Lee. "Optimum Patch Dimension Ratio of T-Shaped Microstrip Antenna". Advanced Materials Research 684 (kwiecień 2013): 303–6. http://dx.doi.org/10.4028/www.scientific.net/amr.684.303.

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There are various feeding methods of antenna like as coaxial probe, coupling, parasitic elements, and impedance matching. This paper adopted the microstrip line method as the feeding method of the antenna. The high frequency structure simulator is used to analyze the characteristics of the T-shaped microstrip antenna with various patch dimensions. In comparison with the basic microstrip antenna, this proposed T-shaped microstrip antenna with 40.38 % of patch dimensions has the optimum characteristics of resonant frequency, return loss, and radiation pattern at 2.0 GHz band.

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Wang, H., X. B. Huang, D. G. Fang i G. B. Han. "A Microstrip Antenna Array Formed by Microstrip Line Fed Tooth-Like-Slot Patches". IEEE Transactions on Antennas and Propagation 55, nr 4 (kwiecień 2007): 1210–14. http://dx.doi.org/10.1109/tap.2007.893428.

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La, Dong-Sheng, Xin Guan, Shuai-Ming Chen, Yu-Ying Li i Jing-Wei Guo. "Wideband Band-Pass Filter Design Using Coupled Line Cross-Shaped Resonator". Electronics 9, nr 12 (17.12.2020): 2173. http://dx.doi.org/10.3390/electronics9122173.

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In this paper, a wideband bandpass filter with a coupled line cross-shaped resonator (CLCSR) is proposed. The proposed bandpass filter is composed of two open-end parallel coupled lines, one short-end parallel coupled line, one branch microstrip line, and the parallel coupled line feed structure. With the use of the even and odd mode approach, the transmission zeros and transmission poles of the proposed bandpass filter are analyzed. The coupling coefficient of the parallel coupled line feed structure is big, so the distance between the parallel coupled line is too small to be processed. A three microstirp lines coupled structure is used to realize strong coupling and cross coupling. This structure also can reduce the return loss in passband and increase the out-of-band rejection. The transmission zeros can be adjusted easily by varying the lengths of the open-end parallel coupled line or the short-end parallel coupled line. The proposed bandpass filter is fabricated and measured. The simulated results agree well with the measured ones, which shows that the design method is valid.

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Homentcovschi, D. "A cylindrical multiconductor stripline-like microstrip transmission line". IEEE Transactions on Microwave Theory and Techniques 37, nr 3 (marzec 1989): 497–503. http://dx.doi.org/10.1109/22.21620.

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Kumar, Pradeep, Rachit Gangwar i Nishant Kumar Yadav. "Microstrip Patch Antenna". International Journal for Research in Applied Science and Engineering Technology 10, nr 5 (31.05.2022): 5303–7. http://dx.doi.org/10.22214/ijraset.2022.42690.

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Abstract: Performance parameters like return loss, voltage standing wave ratio, gain, and radiation pattern are calculated. Design frequency is 2.4 GHz, the copper-coated substrate material is RT Duroid 5880 having dielectric constant ε=2.2 and thickness is 1.6 mm. The feeding technique, employed in Microstrip patch Antenna is Microstrip 50 Ω feed line. employing a parametric study found that the proposed antenna design are useful for ISM band applications like Wi-Fi, Bluetooth, 2G/3G/LTE mobile communication systems.

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Xu, Kaihang. "Broadband Microstrip Antenna Overview". Highlights in Science, Engineering and Technology 27 (27.12.2022): 621–29. http://dx.doi.org/10.54097/hset.v27i.3825.

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Microstrip antennas are widely used in people's daily life. Microstrip antenna has the advantages of low cost, low profile, small space occupation, and high conformal capability. So the design of microstrip antennas can be encountered in daily life. Microstrip antennas include the military, aerospace, medical, and so on. Microstrip antenna has a wide research space. The three microstrip antennas, U-shaped open slit laminated microstrip antenna, dual frequency circularly polarized laminated microstrip antenna, and non-radiating edge-fed broadband double-layer microstrip patch antenna are mainly introduced to understand the research progress and expectation of today's microstrip antennas. This paper firstly introduces the basic theoretical concept of microstrip antenna, then introduces the cavity mode theory, and then mainly lists and introduces three kinds of designed microstrip antenna structures. Finally, these three types of microstrip patch antennas are analyzed. And the advantages, disadvantages, and development fields of the corresponding types of microstrip patch antennas are introduced. The application determines the structure of the method used, and each design has its strengths. Microstrip antennas always have room for research, and continuous research will be applied to more fields.

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Savelkaev, Sergei V. "UNIVERSAL COAXIAL-STRIPLINE AND PROBE TEST FIXTURES AND THEIR CALIBRATION METHODS". Vestnik SSUGT (Siberian State University of Geosystems and Technologies) 25, nr 4 (2020): 229–37. http://dx.doi.org/10.33764/2411-1759-2020-25-4-229-237.

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The design and calibration method for a coaxial-stripline test fixture that provides connection of microwave circuit analyzer of both coaxial measures and microstrip calibrators, as well as the active components under study, such as transistors, are considered. The test fixture provides high repeatability of connecting coaxial measures, microstrip calibrators, and active components being studied and has a small standing-wave ratio and loss. The test fixture is calibrated with using a minimal set of easily calculated microstrip calibrators with low losses, which, taking into account the high repeatability of their connection, reduces the complexity of its calibration and increases the accuracy of transmitting measurement results from the coaxial line to the microstrip line. The possibility of transmitting measurement results from the coaxial line to the microstrip line extends the scope of the State System for Ensuring the Uniformity of Measurements to the microstrip line. The design of the probe test fixture and a method of its calibration by a specialized microstrip calibrator are also given.

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Padmavati i Harshavardhan Reddy. "Explored the impact of a variety of substrate materials on microstrip patch antenna". International Journal of Engineering Research Updates 3, nr 2 (30.10.2022): 026–31. http://dx.doi.org/10.53430/ijeru.2022.3.2.0057.

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According to recent study, adopting the correct dielectric substrate for the future generation of wireless communications can improve antenna performance. In this paper, an attempt is made to design a microstrip feed line microstrip antenna structure for S band application using a variety of substrate materials like Rogers RT Duroid 5870, Rogers RO3003, FR4- epoxy, Bakellite and Glass with relative permittivity of (εr) 2.33, 3, 4.4, 4.8 and 5.5. Analyse S11, VSWR and observe the impact of various parameters by changing height for all substrate in terms of return losses. Ansoft HFSS 13.0 antenna software was used to design and create the matching network of a Microstrip Patch Antenna at 2.4 GHz.

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Wang, Shouxu, Xiaolan Xu, Guoyun Zhou, Yuanming Chen, Wei He, Wenjun Yang, Xinhong Su i Yongshuan Hu. "Effects of microstrip line fabrication and design on high-speed signal integrity transmission of PCB manufacturing process". Circuit World 44, nr 2 (8.05.2018): 53–59. http://dx.doi.org/10.1108/cw-11-2017-0064.

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Purpose As a common transmission line, the microstrip line plays an important role in high-speed circuits. The purpose of this paper was to investigate the effects of the circuit design of microstrip lines on the signal integrity (SI). In addition, the influence of the type and thickness of the solder resist ink on SI was analyzed to provide guidance for the related producing process design of printed circuit boards (PCBs). Design/methodology/approach Microstrip line properties consisting of shape, line-width/line-space ratio, reference layer design and as-covered solder resist ink were designed to measure the insertion loss (S21) in high-speed PCB. Findings The study showed that the insertion loss (S21) of straight, meander, snake-shaped and wavy microstrip lines was approximately consistent. A microstrip line with width/space ratio less than 0.96 is necessary, as the differential line closing produces a mutual interference. Reference layer including the discontinuous area should be repaired by adjusting the microstrip line parameters. With regard to the solder resist ink, the insertion loss of novel solder resist ink decreased by 0.163 dB/in at 12.9 GHz and 0.164 dB/in at 14 GHz, compared with traditional solder resist ink. Accordingly, the insertion loss effectively improved at a lower thickness of solder resist. Originality/value This paper demonstrated that the common designing factors of line shape, line/space ratio, reference layer and solder resist influence microstrip line SI in the significant reference of designer-making PCB layout.

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Lim, Jongsik, Dal Ahn, Sang-Min Han, Yongchae Jeong i Haiwen Liu. "A Defected Ground Structure without Ground Contact Problem and Application to Branch Line Couplers". International Journal of Antennas and Propagation 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/232317.

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A new defected ground structure (DGS) microstrip line that is free from the ground contact problem is described together with its application example. The proposed DGS microstrip line adopts a double-layered substrate. The first layer contains the microstrip line and DGS patterns on the top and bottom planes as with the conventional DGS line. The second substrate, of which upper metal plane has already been removed, is attached to the bottom ground plane of the first layer. This structure prevents the ground plane of the first substrate with DGS patterns from making contact with the metal housing. The proposed DGS microstrip line has advantageous transmission and rejection characteristics, without the ground contact problem of DGS patterns, which has been a critical problem of previous DGS lines. A 10 dB branch line hybrid coupler is designed and measured, as an example of application of the proposed DGS microstrip line.

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Singh, Ashish, Mohammad Aneesh i J. A. Ansari. "Analysis of Microstrip Line Fed Patch Antenna for Wireless Communications". Open Engineering 7, nr 1 (10.11.2017): 279–86. http://dx.doi.org/10.1515/eng-2017-0034.

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AbstractIn this paper, theoretical analysis of microstrip line fed rectangular patch antenna loaded with parasitic element and split-ring resonator is presented. The proposed antenna shows that the dualband operation depends on gap between parasitic element, split-ring resonator, length and width of microstrip line. It is found that antenna resonates at two distinct resonating modes i.e., 0.9 GHz and 1.8 GHz for lower and upper resonance frequencies respectively. The antenna shows dual frequency nature with frequency ratio 2.0. The characteristics of microstrip line fed rectangular patch antenna loaded with parasitic element and split-ring resonator antenna is compared with other prototype microstrip line fed antennas. Further, the theoretical results are compared with simulated and reported experimental results, they are in close agreement.

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Yang, Cheng, Ruinan Wu, Zhiliang Xiao i Wenfang Xu. "Design of Novel Ultra-wideband Slow-wave Microstrip Transmission Line". Journal of Physics: Conference Series 2480, nr 1 (1.04.2023): 012005. http://dx.doi.org/10.1088/1742-6596/2480/1/012005.

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Abstract Microwave passive devices with high efficiency, small size, and light weight are one of the fundamental requirements for mobile communication coverage in the 5G frequency band. In this paper, the design of a novel ultra-wideband slow-wave microstrip transmission line is proposed and studied. The electromagnetic field simulation software HFSS is used to simulate the slow-wave microstrip transmission line, and the simulation results show that the ultra-wideband slow-wave structure has the advantage of wider bandwidth, smaller size, and lower cost, which meets the needs of 5G communication systems. Finally, the proposed slow-wave microstrip line is used in the U-shaped phase shifter, and the experimental results show that the novel slow-wave microstrip transmission line has a large application potential in the base station antenna system.

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Rajni, Rajni, Gurwinder Singh i Anupma Marwaha. "Modeling of Split Ring Resonators loaded microstrip line with different orientations". International Journal of Electrical and Computer Engineering (IJECE) 5, nr 6 (1.11.2015): 1363. http://dx.doi.org/10.11591/ijece.v5i6.pp1363-1371.

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This paper presents the different circuit approaches of the electric and magnetic interaction of Single Split Ring Resonator (SRR) loaded microstrip line. We loaded the microstrip line with planar square split ring resonator in different configurations and orientations. The modeling behavior of metamaterials-based microstrip lines loaded with single and two-mirrored split ring resonators is analyzed numerically in two orientations (with gap of SRR parallel and perpendicular to the line). The full wave simulations are performed for the single and two-mirrored split ring resonators loaded microstrip inside a waveguide with ‘High Frequency Structure Simulator’ software. The equivalent circuit parameters are obtained for the single split ring resonator loaded with microstrip line with the gap parallel and near to the line from transmission line theory that make use of just the resonance frequency and minimum of the reflection coefficient. The simulation of different orientations of split ring resonator gives better reflection coefficient and wider frequency.

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Li, Qian, Chong Ding, Ruichao Yang, Mingtao Tan, Gangxiong Wu, Xia Lei, Xuebing Jiang i in. "Mutual Coupling Reduction between Patch Antennas Using Meander Line". International Journal of Antennas and Propagation 2018 (4.07.2018): 1–7. http://dx.doi.org/10.1155/2018/2586382.

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Meander lines (MLs) in two configurations are presented to reduce the mutual coupling (MC) between two microstrip patch antenna elements. Inserting a slot in the ground plane between the antenna elements is a simple method to reduce the MC, while adding the MLs in the slot of the ground can further reduce the MC. In the first configuration, one ML is inserted in the slot of the ground and a maximum MC reduction of 39 dB throughout the −10 dB bandwidth is achieved. What’s more, the radiation patterns are not changed compared with the dual-element microstrip antenna array with a slotted ground. For the second configuration, two MLs are added in the slot of the ground. It is found that a maximum isolation of 53 dB can be obtained. However, the radiation patterns are slightly changed compared with the dual-element microstrip antenna array with a slot in the ground. Meanwhile, the measured peak gain and efficiency of the dual-element microstrip antenna array in the two configurations are given. Along with this paper, several prototypes have been fabricated and measured. The simulated results are in good accordance with the measurements, which are presented to verify that MC reduction can be achieved between microstrip antenna elements by adding the MLs in the slotted ground.

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Liew, Hui Fang, Syed Idris Syed Hassan, Mohd Fareq bin Abd Malek, Yufridin Wahab, Melaty Amirruddin, Ahmad Zaidi Abdullah, Muhammad Irwanto Misrun, Gomesh Nair Shasidharan, Mohd Irwan Yusoff i Nurhakimah Mohd Mukhtar. "Design of Compact Composite Microstrip Low Pass Filter Using MEMS Technology". Applied Mechanics and Materials 754-755 (kwiecień 2015): 581–90. http://dx.doi.org/10.4028/www.scientific.net/amm.754-755.581.

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This paper presents the design technique of a compact composite microstrip filter operating at ultra high frequency (UHF) band and its fabrication using micro-electro mechanical system MEMS technology. The fringing compensation method is applied into the design of the microstrip line transformation from lumped element. The filter lumped circuits and microstrip line circuit were designed and simulated using Advanced Design Software (ADS) and fabricated on silicon substrates to obtain the best filter characteristic based on S-parameter. The measured and simulated results have achieved a good agreement within the frequency of interest. This shows that the fringing compensation method of transforming lumped element into microstrip line is able to solve the conventional design of complexity size of circuit of composite low pass filter (LPF) into microstrip line. The proposed filter design can replace the conventional filters in wireless communication as they offer better performance at lower cost in the RF microwave communication applications.

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Ravinayak, Dharavat. "C-Band Line of Sight Communication for analysis to Compact Microstrip Patch Antenna Using Parasitic Technique". Asian Journal of Computer Science and Technology 7, nr 2 (5.08.2018): 97–100. http://dx.doi.org/10.51983/ajcst-2018.7.2.1863.

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The investigation of microstrip fix radio wires has gained awesome ground as of late. Contrasted and ordinary reception apparatuses, microstrip fix recieving wires have more points of interest and better prospects. They are lighter in weight, low volume, ease, low profile, littler in measurement and simplicity of manufacture and similarity. Besides, the microstrip fix reception apparatuses can give double and round polarizations, double recurrence activity, recurrence spryness, wide band-width, feedline adaptability, shaft checking unidirectional designing. In this paper we examine the microstriprecieving wire, kinds of microstrip reception apparatus, sustaining methods and use of microstrip fix radio wire with their favorable position and detriments over ordinary microwave radio wires.From this paper, design of small Microstrip patch antenna using parasitic technique for range of sight communication is proposed, having hexagonal condition ground plane. The recommended antenna has slots in the patch to obtain wideband. The antenna model is simulated using Finite component method at the rate of recurrence 2. 65 GHz to 4. 57 GHz. The antenna design demonstrates desired features for wireless communication

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Irfan, Nazish. "Design of a Microstrip-Line-Fed Inset Patch Antenna for RFID Applications". International Journal of Engineering and Technology 4, nr 5 (2012): 558–61. http://dx.doi.org/10.7763/ijet.2012.v4.432.

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Zhang, Youjun, i Ying Li. "Parallel PBG microstrip line". Microwave and Optical Technology Letters 45, nr 6 (2005): 548–50. http://dx.doi.org/10.1002/mop.20875.

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Niu, Heyi, Jingfeng Wu i Zhiqiang Wang. "Design of a Novel Broadband Microstrip Line-Suspended Microstrip Line Transition Circuit". Journal of Physics: Conference Series 1325 (październik 2019): 012167. http://dx.doi.org/10.1088/1742-6596/1325/1/012167.

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Fan, Xiangsuo, Xiaokang Chen, Wenhao Xu, Lingping Feng, Ling Yu i Haohao Yuan. "A Filtering Switch Made by an Improved Coupled Microstrip Line". Applied Sciences 13, nr 13 (5.07.2023): 7886. http://dx.doi.org/10.3390/app13137886.

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In this paper, we propose a new filtering switch with excellent working performance made using an optimized coupled microstrip line. Upon analyzing the RF (radio frequency) front-end’s system structure, the switching device was simplified to a diode, which was connected to the microstrip circuit we designed to become a filter switch with both filtering and shutdown functions. First, we obtained an equivalent schematic of this filtering switch based on the relevant microstrip line theory. This switch consists of two coupled microstrip circuits, parallel-coupled feed lines and coupled-line stub-load resonators (CLSs), and a PIN diode. Second, the operating principle is described by the switching of the operating states, with ideal shutdown performance in the off state and considerable selectivity and excellent out-of-band rejection performance in the filtered state. Finally, a prototype filtering switch with a center frequency of 0.8 GHz was designed and tested. After subsequent optimization and improvement, the simulation and test performance results were noticeably consistent, consequently verifying the performance requirements of this filtering switch in two operating states in the center frequency band.

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Prijono, Wahju Adi, i Dimas Brahmantyo. "Perancangan Single Fold Hairpin type Narrow-Band Microstrip Band Pass Filter dengan T-Shape Line Stub pada Aplikasi Jaringan Mid-Band 5G Telkomsel". Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) 16, nr 2 (13.10.2022): 14–19. http://dx.doi.org/10.21776/jeeccis.v16i2.1493.

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Teknologi seluler Fifth Generation (5G) merupakan lompatan besar dalam kecepatan untuk perangkat nirkabel karena memberikan kecepatan data sebesar 10 hingga 100 kali lebih cepat dari jaringan 4G. Walaupun begitu terdapat suatu kendala dalam komunikasi 5G yang perlu diperhatikan, yaitu adanya RF noise yang menggangu proses kerja 5G. Penelitian ini membahas mengenai perancangan Microstrip Band Pass Filter dengan jenis Single Fold Hairpin dengan T-Shape Line Open Stub pada aplikasi jaringan Mid-band 5G Telkomsel. Desain Single Fold Hairpin type Narrow-Band Microstrip Band Pass Filter dengan T-Shape Line Open Stub mengalami reduksi ukuran sebesar 32,43% dibandingkan dengan Microstrip Band Pass Hairpin Filter tanpa Single Fold Resonator dan T-shape Line Open Stub. Didapatkan juga Return Loss sebesar -60,559 dB, Insertion Loss sebesar -5,5 dB, serta Bandwidth ketika Stopband Rejection sebesar -25 dB 490 MHz. Spurious Passband pada Single Fold Hairpin type Narrow-Band Microstrip Band Pass Filter dengan T-Shape Line Stub dapat dihilangkan sepenuhnya, berbeda dengan Microstrip Band Pass Hairpin Filter tanpa Single Fold Resonator dan T-shape Line Open Stub yang mengalami Spurious Passband pada 1,095 â€“ 1,164 GHz serta 5,75 - 6 GHz dengan total 316 MHz.

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Sharma, Rohit, T. Chakravarty, Sunil Bhooshan i A. B. Bhattacharyya. "Characteristic Impedance of a Microstrip-Like Interconnect Line in Presence of Ground Plane Aperture". International Journal of Microwave Science and Technology 2007 (7.02.2007): 1–5. http://dx.doi.org/10.1155/2007/41951.

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We propose new empirical expressions for the characteristic impedance of a microstrip-like interconnect line in presence of ground plane aperture. The existing characteristic impedance expressions are modified so as to include the effect of the ground plane aperture. The variation in the characteristic impedance vis-à-vis the aperture size is established. The proposed expressions are general and valid for a range of dielectric materials concerning MICs, RFICs, and PCBs. The results are validated by measurements performed on a vector network analyzer.

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Homentcovschi, D., A. Manolescu, A. M. Manolescu i L. Kreindler. "An analytical solution for the coupled stripline-like microstrip line problem". IEEE Transactions on Microwave Theory and Techniques 36, nr 6 (czerwiec 1988): 1002–7. http://dx.doi.org/10.1109/22.3625.

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Peric, Mirjana, Sasa Ilic, Slavoljub Aleksic, Nebojsa Raicevic, Mirza Bichurin, Alexander Tatarenko i Roman Petrov. "Covered microstrip line with ground planes of finite width". Facta universitatis - series: Electronics and Energetics 27, nr 4 (2014): 589–600. http://dx.doi.org/10.2298/fuee1404589p.

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Characteristic parameters of a covered microstrip line with ground planes of finite width are determined using hybrid boundary element method (HBEM). This method, developed at the Faculty of Electronic Engineering of Nis is based on the combination of equivalent electrodes method (EEM) and boundary element method (BEM). Results for the characteristic impedance of the observed microstrip line are compared with the corresponding ones obtained by the finite element method.

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Wang, Youcheng, Guangyou Fang, Hai Su, Yicai Ji, Shengbo Ye i Xiaojuan Zhang. "A Novel UWB TEM Horn Antenna with a Microstrip-Type Feed". International Journal of Antennas and Propagation 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/182140.

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A novel ultra-wideband (UWB) TEM horn antenna fed by a microstrip-type transition is designed. The feeding structure is directly realized by a microstrip line with the merit of compact size and UWB. To broaden the low frequency band, an arc surface is added at the end of the flare plates. Numerical simulation is applied to discuss the effect of the geometry construction which contains the microstrip-type transition and the circular arc surface at the end of radiating arm. Return loss, radiation pattern, and gain of the fabricated antennas are measured. The measured results show that the antenna yields a wide bandwidth ranging from 1 GHZ to 10.3 GHz with return loss less than −10 dB. The antenna also achieves unidirectional radiation patterns with stable antenna gain. These characteristics imply that the compact antenna may be used for detecting buried objects in the wall or UWB communication systems of band like GSM, Wi-Fi, and so forth.

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Yadav, Rana Pratap, Vinay Kumar i Rajveer Dhawan. "Design and development of patch compensated wideband Vivaldi antenna". International Journal of Microwave and Wireless Technologies 10, nr 9 (10.07.2018): 1081–87. http://dx.doi.org/10.1017/s1759078718000983.

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AbstractDesign and fabrication of a microstrip feedline-based Vivaldi antenna in the frequency range of 6.0–8.0 GHz have been presented. The Vivaldi antenna is a planar antenna, fabricated at the microstrip feedline by having an exponentially tapered slot profile on it. An optimized computer-aided design has been developed and simulated for the desired radiation parameters like voltage standing wave ratio, bandwidth, directionality, beam-width, etc. The optimized design has been fabricated and tested. Wherever the results are not found as desired; problem has been comprehensively investigated and analyzed. This is found associated with a discontinuity at feed line, fabrication tolerance constraints and parasitic capacitance at the edges or the bent of the microstrip feedline which introduce the parasitic reactance in antenna design. Here, the presented work explores a generalized theoretical procedure for the compensation of associated problem by incorporating the reactive patch on the feedline. The developed theory is applied in fabrication and tested for the desired results.

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Yang, Jun Xiu, Lin Li i Wen Lai Zhao. "Design of Dual-Frequency Microstrip Patch Antenna". Advanced Materials Research 516-517 (maj 2012): 1594–98. http://dx.doi.org/10.4028/www.scientific.net/amr.516-517.1594.

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A dual-frequency microstrip patch antenna is proposed based on rectangular microstrip patch, with appropriating feed location selection of 50Ω coaxial line, two frequency are respectively applied to 0.8GHz and 0.9GHz. Size of antenna is designed based on the simulation software of HFSS from ANSOFT company, reducing antenna return loss by adjusting size and completing matching between patch and coaxial line, results are analyzed. Simulation results show the design and implementation of microstrip patch antenna have certain reference value with small return loss on 0.8GHz and 0.9GHz.

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32

Knyazev N. S., Malkin A. I. i Chechetkin V. A. "Losses measurement method for transmission lines at mmWave". Technical Physics Letters 48, nr 3 (2022): 34. http://dx.doi.org/10.21883/tpl.2022.03.52880.18981.

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An experimental method was developed to determine losses in microstrip and coplanar transmission lines for devices operating in the frequency range of 77-81 GHz. The parameters of the scattering matrices are obtained using a vector network analyzer and frequency upconverters. The calculation of losses in waveguide-coplanar and coplanar-microstrip adapters is made. Keywords: losses, attenuation, microstrip line, coplanar waveguide, electrodynamic parameters.

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33

Liu, Gang, Lin Li, Yang Xiao i Si‐Si Chen. "Vialess vertical microstrip‐to‐microstrip transition using open slot‐line". Electronics Letters 51, nr 23 (listopad 2015): 1895–96. http://dx.doi.org/10.1049/el.2015.2000.

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34

Fuh, Kuen-Fwu, i Ching-Kuang C. Tzuang. "Magnetically scannable microstrip antenna employing a leaky gyromagnetic microstrip line". Electronics Letters 31, nr 16 (3.08.1995): 1309–10. http://dx.doi.org/10.1049/el:19950951.

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35

Stefanovski, Snezana, i Branko Kolundzija. "The impedance variation with feed position of a microstrip line-fed patch antenna". Serbian Journal of Electrical Engineering 11, nr 1 (2014): 85–96. http://dx.doi.org/10.2298/sjee131121008s.

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This paper presents a very precise analysis of the impedance variation with feed position of a microstrip line-fed patch antenna. The influence of the inset length and width has been investigated, taking into account finite size of the substrate, various lengths of the feeding microstrip line, losses and finite thickness of metallization. The obtained numerical results are compared with the previously published ones, showing very good agreement. However, the results of the additional analysis confirmed that the mathematical functions proposed in previously published papers (the cosine-squared function and the cosine to the fourth power function) are not really good approximations of the input impedance behavior for this type of the microstrip patch antenna.

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36

Sasic, Mubina, i Sehabbedin Taha Imeci. "Design of microstrip coupled-line bandpass filter". Heritage and Sustainable Development 3, nr 1 (8.04.2021): 44–52. http://dx.doi.org/10.37868/hsd.v3i1.55.

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This project contains basic information, design, 3D projection, simulation, and analysis of Microstrip Bandpass Filter. The filter was composed of the feed lines connected to the two ports with the parallel coupled lines between them. The separation between these elements is reduced to the minimum for the purpose of reducing the error. Ultimately, the microstrip bandpass filter was designed with a 400 MHz bandwidth. We end up with these result: at the 4.43 GHz, S11 parameter is -9.868 dB and S22 is -1.808 dB, while at the 4.83 GHz, S11 is -9.995 dB and S22 is -1.826 dB.

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37

Magro, V. I., i S. V. Plaksin. "The study of the radiating module of the energy management system of buildings". Electrical Engineering and Power Engineering, nr 4 (30.01.2023): 15–23. http://dx.doi.org/10.15588/1607-6761-2022-4-2.

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Purpose. Improving the toolkit of interaction between sensors and the building control system using a triangular microstrip antenna. Methodology. Mathematical modeling by the method of finite differences in the time domain. Findings. The proposed technical solution consists in choosing the optimal design of the radiating module in the form of a triangular microstrip antenna, by means of mathematical modeling, the values of the geometric dimensions of the triangle, the thickness of the dielectric layer and the value of its dielectric constant, the overall dimensions of the radiating module, which ensure optimal coordination of the antenna with the power feeder in the form of a microstrip line. The developed computer model of the triangular microstrip antenna using the finite-difference method in the time domain allows conducting research on the parameters of this antenna that provide stable wireless communication between the system of sensors and the home automation control unit. The condition for increasing the degree of matching the impedance of the antenna and the supply line is the choice of the method of powering the antenna. It was established that the most optimal way of feeding a triangular antenna is the method of connecting the microstrip line to the middle of the side of the triangle, compared to the way of connecting the power line to the top of the triangle. The width of the microstrip power line was optimized according to the criterion of minimizing the module of the reflection coefficient at the antenna input. A study of the degree of matching the impedance of the antenna at operating frequencies of 2,4 and 7 GHz was carried out. At a frequency of 7 GHz, the magnitude of the reflection coefficient module is -23,6776 dB. The three-dimensional and two-dimensional radiation patterns of this antenna are calculated. The radiation pattern has an almost spherical shape, that is, it allows placing the radiating module in any orientation relative to the earth's surface. This allows the triangular microstrip antenna to be used as a radiating module of the building energy management system and the smart home system. Originality. The study of the ways of feeding the triangular microstrip antenna allows to find the optimal coupling of the antenna with the power line, which ensures the formation of radiation characteristics that ensure effective interaction between the sensors and the building's energy management control system. Practical value. The radiation characteristics of a triangular microstrip antenna obtained as a result of the study make it possible to use it to organize a wireless communication channel in a 4% operating frequency band.

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38

Herbko, Michal, i Przemyslaw Lopato. "Application of a Single Cell Electric-SRR Metamaterial for Strain Evaluation". Materials 15, nr 1 (31.12.2021): 291. http://dx.doi.org/10.3390/ma15010291.

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Strain is a crucial assessment parameter in structural health monitoring systems. Microstrip sensors have been one of the new types of sensors used to measure this parameter in recent years. So far, the strain directionality of these sensors and the methods of miniaturization have been studied. This article proposes the use of a single cell metamaterial as a resonator of the microstrip sensor excited through the microstrip line. The proposed solution allowed for significant miniaturization of the microstrip sensor, with just a slight decrease in sensitivity. The proposed sensor can be used to measure local deformation values and in places with a small access area. The presented sensor was validated using numerical and experimental methods. In addition, it was compared with a reference (rectangular geometry) microstrip sensor.

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Sharma, Somia, Rajesh Kumar Singh, Ananjan Basu i Shiban K. Koul. "A Wideband Transition from Microstrip Line to Microstrip Spoof Surface Plasmon Polariton Line for Microwave/Millimeter-Wave Applications". International Journal of RF and Microwave Computer-Aided Engineering 2023 (7.02.2023): 1–8. http://dx.doi.org/10.1155/2023/6485834.

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In this article, a wideband transition from a microstrip transmission line to a microstrip spoof surface plasmon polariton (SSPP) transmission line is reported. The proposed transition is realized to achieve better performance starting from low frequencies up to 40 GHz. The proposed shape of the unit cell is taken in such a manner that the momentum, impedance, and polarization of the microstrip line can be matched with that of the SSPP transmission line. The wide operating band of the transition can be achieved by perturbing only the shape of the unit cell. Extra care is taken in choosing the shape of the unit cell so that the fabrication of the circuit becomes easier, especially at millimeter-wave frequencies. The proposed transition has a good transition-occupation ratio and transmission efficiency. The achieved transition-occupation ratio and transition efficiency for all three designed cases are excellent, and it is 34.18%, 44%, and 39% for p = 1 mm, 2 mm, and 3 mm, respectively. It is a potential candidate for realizing millimeter-wave antennas and devices due to its attractive properties, such as compact layout, low fabrication cost, ease of fabrication even at millimeter-wave frequencies, and good operational characteristics.

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40

Pracyuk, B. B., YU V. Prokopenko, K. G. Savin i P. YU Sergienko. "Tunable microstrip line microwave filters". Electronics and Communications 16, nr 4 (31.03.2011): 53–56. http://dx.doi.org/10.20535/2312-1807.2011.16.4.244662.

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The frequency tuning method for microstrip resonators is proposed. The method realizes electromechanical tuning by MEMS or piezoelectric actuators. The stop-band and pass-band tunable filters based on the proposed approach were designed.

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41

Singh, Vimlesh, Priyanka Bansal i P. K.Singhal. "Microstrip line Antenna Fabrication Material". International Journal of Engineering & Technology 7, nr 2.8 (19.03.2018): 340. http://dx.doi.org/10.14419/ijet.v7i2.8.10437.

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This paper presents an extensive survey of electromagnetic materials used for antenna fabrication, which find application in Civilian life as well as defense life. When a densely packed microwave integrated circuit is designed, it requires protection from higher power transient because of specific polarization and frequency response. To meet specification of such kind of microwave circuits it is desired to exploit properties of fabricating materials, which are not found in nature but can be prepared with specific proportion of chemical element combination. This study provides in-depth responses of materials toward electromagnetic wave's characteristics such as dielectric, flexible electronics, electrical and thermal properties, which have vast potential in communication engineering.

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42

Rosloniec, S., i T. Habib. "Novel microstrip-line directional filters". IEEE Transactions on Microwave Theory and Techniques 45, nr 9 (1997): 1633–37. http://dx.doi.org/10.1109/22.622933.

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43

Shimasaki, Hitoshi, i Makoto Tsutsumi. "Light-controlled microstrip line coupler". International Journal of Infrared and Millimeter Waves 10, nr 9 (wrzesień 1989): 1131–38. http://dx.doi.org/10.1007/bf01010371.

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44

Alexopoulos, N. G., i A. Nakatani. "Cylindrical Substrate Microstrip Line Characterization". IEEE Transactions on Microwave Theory and Techniques 35, nr 9 (wrzesień 1987): 843–49. http://dx.doi.org/10.1109/tmtt.1987.1133761.

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45

Patil, K. D., S. K. Maiti i S. Mahapatra. "Pipe enclosed microstrip transmission line". Electronics Letters 27, nr 14 (1991): 1291. http://dx.doi.org/10.1049/el:19910808.

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46

Xue, Quan, Jun Xu, Liangjin Xue i Weigan Lin. "Tunable fin-line—microstrip oscillator". Microwave and Optical Technology Letters 7, nr 16 (listopad 1994): 765–67. http://dx.doi.org/10.1002/mop.4650071613.

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47

Reddy, Deepak, Rakshith Reddy, Mohith i B. Shilpa. "Design of 4x1 Circular Microstrip Patch Array Antenna for WLAN Applications". E3S Web of Conferences 391 (2023): 01068. http://dx.doi.org/10.1051/e3sconf/202339101068.

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Microstrip patch antennas consists of a thin, flat rectangular or circular metallic patch, which is printed on a dielectric substrate, with a ground plane attached to the opposite side of patch upon substrate. The patch is connected to a coaxial cable or a microstrip transmission line and it emits electromagnetic waves into free space. This type of antenna is used in a variety of fields, including wireless communication, radar sensing, medical applications, and military applications. The antennas needed for these applications are lightweight, conveniently mountable, and have a wide bandwidth. The antenna with the microstrip array and with the edge feeding method has been designed. We had improved the antenna characteristics such as return loss, gain and directivity. It has a return loss of 27.9 dB at a resonance frequency of 2.45 GHz and is intended for a gain of 8.60db. The substrate consists of a dielectric material with a permittivity (Ԑr) of 4.4, a thickness of 1.6mm (about 0.06 in) and fed via an edge feed line method with a resistance of about 50 Ohm. This antenna can be applied to S-band applications like radar tracking, Weather updates. The tool we have used to design and evaluate the antenna’s characteristics is HFFS.

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48

Krukonis, Audrius. "INVESTIGATION OF CALCULATION TECHNIQUES OF FINITE DIFFERENCE METHOD". Mokslas - Lietuvos ateitis 2, nr 1 (28.02.2010): 103–7. http://dx.doi.org/10.3846/mla.2010.023.

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Finite difference method used for microstrip transmission line analysis is considered in this article. Paper mainly deals with iterative and bound matrix calculation techniques of finite difference method. Mathematical model for microstrip transmission line electrical potential calculations using both techniques is described. Results of characteristic impedance calculation using iterative and bound matrix techniques are presented and analyzed.

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Müller, Jens. "Wide Band Measurement of Dielectric Properties of Electronic Assembly Materials Inside a LTCC Fluidic Structure". Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2013, CICMT (1.09.2013): 000041–46. http://dx.doi.org/10.4071/cicmt-tp22.

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Assembly materials like underfillers or glob top epoxies are typically not specified regarding their dielectric properties for frequencies higher than 1 MHz. However, their behavior should be known for a wider frequency range in order to implement the right parameters for RF and microwave simulations and designs. Typical methods to measure permittivity and loss tangent are based on parallel plate capacitor measurement with an impedance or network analyzer (up to about 1 GHz), S-parameter measurement of filled wave guides or coaxial transmission lines or resonance methods (e.g. split post resonator, slit cavity resonator, ring resonator, open resonator). Most of these methods require specific sophisticated sample preparation. The paper describes a novel method based on suspended or inverted microstrip evaluation in a 3D LTCC structure. Suspended and inverted microstrip lines have lower insertion losses than standard microstrip lines due to the air gap between the line and the ground plane (reduced dielectric losses). Low loss structures are necessary to be able to measure low loss dielectrics. Such suspended or inverted microstrip lines can be easily achieved in LTCC by implementing a cavity structure. In- and outlets allow filling the cavity with fluids after an initial S-parameter measurement of line properties (impedance, insertion loss, phase velocity). Measuring is repeated once the assembly material is cured. The change in impedance, phase velocity and insertion contains the information about the material under test. Its properties are derived by curve fitting methods with a 3D electromagnetic field simulator. It is also possible to implement line resonators instead of through lines. In the latter case, the resonant frequency shift and the quality factor contains the material information. The procedure is demonstrated on a multilayer LTCC substrate based on low loss DP 9k7 and a commercial underfill material.

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50

Andrieyani, Citra, Bambang Sumajudin i Trasma Yunita. "PERBANDINGAN ANTENA MIKROSTRIP ARRAY DUAL BAND DENGAN PENCATUAN MICROSTRIP LINE DAN ELECTROMAGNETICALLY COUPLED (EMC)". TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika 5, nr 1 (14.09.2020): 19. http://dx.doi.org/10.25124/tektrika.v5i1.3241.

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Single microstrip antenna has the characteristics of narrow bandwidth and small gain. This paper discusses the design of a microstrip array antenna that works at two working frequencies, namely 2.4 GHz and 5 GHz for WiFi. The method used to obtain dual band frequencies is by adding slots on the side of the patch. The results obtained are the 4-element microstrip array antenna with feed line supply has better results when applied to WiFi. This feed line antenna has a bandwidth of 75 MHz - 184.4 MHz in accordance with IEEE 802.11n standards and has a gain of 4.321 dBi. Whereas the EMC supply has a large gain of 11.54 dBi but the bandwidth obtained is very narrow, namely 27.5 MHz.

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