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Thematische Bibliographien / ISM band 2 / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „ISM band 2“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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1

H., Setti, Zbitou J., El Hamichi A., and Tribak A. "A new configuration of a printed diplexer designed for DCS and ISM bands." TELKOMNIKA Telecommunication, Computing, Electronics and Control 17, no. 3 (2019): 1090–95. https://doi.org/10.12928/TELKOMNIKA.v17i3.9991.

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This work presents a new study on the design of a microstrip diplexer configuration optimized and validated for ISM and DCS frequency bands. The achieved structure is based on microstrip technology, the goal was to design two printed bandpass filters one for ISM band and the other one for DCS frequency band.The two microstrip filters are associated by using a T-junction which permits to validate a diplexer in the frequency bands DCS-Band receiver [1.74–2 GHz] and ISM-Band transmitter [2.3–2.55 GHz]. The whole size of the final circuit is 130x50 mm2. After the validation of the prop

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Abdulhussein, Nabil, and Abdulkareem Abdullah. "Design of a Wide Dual-Band Coplanar Probe Feed Antenna for WLANs Applications." 3D SCEEER Conference sceeer, no. 3d (2020): 13–16. http://dx.doi.org/10.37917/ijeee.sceeer.3rd.2.

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This paper presents a new design to obtain wide dual-band operation from a coplanar probe feed antenna loaded with two shorted walls. The lower band of proposed antenna has a 10 dB bandwidth of 611 MHz (24.18%) around the center frequency 2527MHz, and the upper band has a bandwidth of 1255 MHz (27.88%) around the center frequency 4501MHz. The obtained bandwidths cover WLANs operations on all bands. The bandwidth of the first operating frequency covers ISM band (2400-2483.5) MHz, which is required by IEEE 802.11b, g and Bluetooth standards, and the bandwidth of the second operating frequency co

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I., Zahraoui, Errkik A., C. Abounaima M., Tajmouati A., E. Abdellaoui L., and Latrach M. "A New Planar Multiband Antenna for GPS, ISM and WiMAX Applications." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 4 (2017): 2018–26. https://doi.org/10.11591/ijece.v7i4.pp2018-2026.

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n this paper a design of a new antenna with modified ground plane is validated for multiband applications. The proposed modified ground structure is incorporated with a patch antenna to boost the performance. The antenna’s entire area is 59.5x47mm 2 and is printed on an FR-4 substrate and fed by a 50 Ohm microstrip line. This structure is validated in the GPS (1.56-1.58 GHz) band at 1.57 GHz, in the ISM (2.43-2.49 GHz) band at 2.45GHz and in the WiMAX (3.50-3.56 GHz) band at 3.53 GHz. These three frequency bands have good matching input impedance for, S11≤-10 dB. The antenna presents

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4

Wu, Chih-Kuang, Tsung-Fu Chien, Chin-Lung Yang, and Ching-Hsing Luo. "Design of Novel S-Shaped Quad-Band Antenna for MedRadio/WMTS/ISM Implantable Biotelemetry Applications." International Journal of Antennas and Propagation 2012 (2012): 1–12. http://dx.doi.org/10.1155/2012/564092.

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A novel S-shaped quad-band planar inverted-F antenna (PIFA) is proposed for implantable biotelemetry in the Medical Device Radiocommunications Service (MedRadio) band (401–406 MHz), Wireless Medical Telemetry Service (WMTS) band (1427–1432 MHz), and industrial, scientific, and medical (ISM) bands (433-434 MHz and 2.4–2.4835 GHz). The proposed antenna reveals compact dimension of 254 mm3(10×10×2.45 mm3) and is composed of three substrates and a superstrate, which are constructed from an S-shaped radiator (layer 1) and two twin radiators of spiral structures (layer 2 and layer 3). The optimal an

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Bora, Pronami, P. Pardhasaradhi, and B. T. P. Madhav. "Square RR Loaded Microstrip Patch Antenna for ISM Band Applications." Journal of Nano- and Electronic Physics 14, no. 2 (2022): 02024–1. http://dx.doi.org/10.21272/jnep.14(2).02024.

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6

R., Praveena, Ganesh Babu T.R., Praveenkumar S., Ragul R., and Sivakumar M. "Flexible EBG Structure Antenna for ISM Band Applications." IRO Journal on Sustainable Wireless Systems 7, no. 1 (2025): 57–72. https://doi.org/10.36548/jsws.2025.1.005.

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The electromagnetic bandgap (EBG) antenna, designed for ISM band applications, demonstrates a sophisticated interaction of structural and electrical parameters to optimize performance. This antenna is carefully engineered with an overall size of 70mm × 80mm to ensure efficient radiation characteristics and operation at 2.4 GHz and 5.8 GHz. The proposed antenna design uses an EBG ring structure, with an inner diameter of 3mm and an outer diameter of 6mm, FR-4 substrate, for featuring a dielectric constant of 3.8, and a precisely calculated feed-line width of 2.4mm × 20.7mm to ensure the optimal

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7

Lei, Lei, Fang Han, Zicheng Liu, Quanwen Qi, Xinghua Wang та Weijiang Wang. "A 320 μW Multi-Band Receiver with N-Path Switched-Capacitor Networks". Electronics 11, № 24 (2022): 4111. http://dx.doi.org/10.3390/electronics11244111.

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This paper presents a multi-band ultra-low power (ULP) receiver with N-Path Switched-Capacitor (NPSC) networks in 90 nm CMOS process. The NPSC is integrated into the feedback loop of the low noise amplifier (LNA) to flexibly provide narrowband input matching at multiple sub-GHz Industrial, Scientific, and Medical (ISM) bands by adjusting the switching frequency. Moreover, the LNA with an NPSC network is utilized to suppress the out-of-band signal at the input and output of the LNA, simultaneously. In order to achieve an ultra-low power consumption, a sub-threshold LNA and four passive NPSC mix

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Shahverdi, Kaveh, Soheil Hashemi, Sadaf Sarafan, and Hung Cao. "Triple-Band Implantable Antenna Design for Biotelemetry Applications in MICS/ISM/Wi-Fi/Bluetooth Bands." Technologies 10, no. 4 (2022): 91. http://dx.doi.org/10.3390/technologies10040091.

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Our objective is to design triple-band implantable antennas with wide bandwidths and appropriate sizes for biomedical applications. The targeted design frequencies are 400 MHz, 2.4 GHz, and the new Wi-Fi band of 5.7 GHz. Three triple-band antennas with bandwidth improvements are presented to insure all-time data connection. The proposed triple-band implantable antennas benefit from combining long-distance data transfer at lower frequency bands and a higher effective bandwidth, and high-speed communications at higher frequency bands, which will have flexibility for a variety of applications. A

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Singla, Geetanjali, Rajesh Khanna, and Davinder Parkash. "CPW fed rectangular rings-based patch antenna with DGS for WLAN/UNII applications." International Journal of Microwave and Wireless Technologies 11, no. 5-6 (2019): 523–31. http://dx.doi.org/10.1017/s1759078719000023.

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AbstractThe spectral congestion in existing Industrial, Scientific, and Medical (ISM) Wireless Local Area Network (WLAN) bands has led to the emergence of new ISM bands (Unlicensed National Information Infrastructure (UNII)) from 5.150 to 5.710 GHz. In this paper, a simple uniplanar, high gain, microstrip antenna is designed, fabricated, and tested for existing WLAN and new UNII standards. The proposed antenna provides dualband operation by joining two rectangular rings and cutting Defected Ground Structure in the Coplanar Wave Guide (CPW) feed. The experimental and simulation results show goo

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Al-Obaidi, Mohammed K., Ezri Mohd, Noorsaliza Abdullah, Samsul Haimi Dahlan, and Jawad Ali. "Design and implementation of microstrip rotman lens for ISM band applications." Bulletin of Electrical Engineering and Informatics 8, no. 1 (2019): 90–98. http://dx.doi.org/10.11591/eei.v8i1.1392.

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This work presents the design and implementation of Rotman lens as a beam steering device for Industrial, Scientific, and Medical (ISM) applications. 2.45 GHz is considered as a center frequency design with (2-6) GHz frequency bandwidth. The beam steering is examined to cover ±21o scan angle with maximum main lobe magnitude 10.1 dBi, rectangular patch antennas are used as radiation elements to beam the output far field. The work is extended to compare between the tapered line which is used for matching between 50-Ω ports and lens cavity. CST microwave simulation studio results show that the re

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Mohammed, K. Al-Obaidi, Mohd Ezri, Abdullah Noorsaliza, Haimi Dahlan Samsul, and Ali Jawad. "Design and implementation of microstrip rotman lens for ISM band applications." Bulletin of Electrical Engineering and Informatics 8, no. 1 (2019): 90–98. https://doi.org/10.11591/eei.v8i1.1392.

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This work presents the design and implementation of Rotman lens as a beam steering device for Industrial, Scientific, and Medical (ISM) applications. 2.45 GHz is considered as a center frequency design with (2-6) GHz frequency bandwidth. The beam steering is examined to cover ±21o scan angle with maximum main lobe magnitude 10.1 dBi, rectangular patch antennas are used as radiation elements to beam the output far field. The work is extended to compare between the tapered line which is used for matching between 50-Ω ports and lens cavity. CST microwave simulation studio results sho

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Madhav, Boddapati T. P., Shaik Rajiya, Badugu P. Nadh, and Munuswami S. Kumar. "Frequency reconfigurable monopole antenna with DGS for ISM band applications." Journal of Electrical Engineering 69, no. 4 (2018): 293–99. http://dx.doi.org/10.2478/jee-2018-0041.

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Abstract In this article a compact frequency reconfigurable antenna is presented for wireless communication applications of industrial, scientific and medical band (ISM). The proposed antenna model is designed with the dimensions of 58mm×48 mm on FR4 epoxy of dielectric constant 4.4 with the thickness of 0.8 mm. The proposed antenna consists of defected T-shape ground plane, which acts as a reflector. In the design of frequency reconfigurable antenna, BAR 64-02V PIN diodes are used as switching elements and antenna is fed by microstrip transmission line. The proposed antenna can switch at diff

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Jain, Chahat, and Saroop Singh. "Feed Point Optimization of Koch–Minkowski Hybrid Boundary antenna for ISM Band." Wireless Personal Communications 108, no. 4 (2019): 2403–14. http://dx.doi.org/10.1007/s11277-019-06528-2.

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14

Bora, P., P. Pokkunuri, and B. T. P. Madhav. "The Design of Closed Square RR Loaded 2-Port MIMO for Dual Band Applications." Engineering, Technology & Applied Science Research 12, no. 2 (2022): 8382–87. http://dx.doi.org/10.48084/etasr.4760.

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In this paper, a closed square ring resonator loaded 2-port Multi Input Multi Output (MIMO) is proposed for dual-band applications in the S and C band. The presented antenna model is designed by loading it in FR-4 substrate with a feedline of 50Ω and loaded with SRR for the enhancement of isolation and radiation pattern. Ansoft HFSS is used to obtain the simulated parameters of the model for the frequency ranges of 2.2-2.5 and 6-6.3GHz. Measurements confirm the characteristics of the fabricated antenna that were speculated with the simulation results with a little shift in frequencies. The div

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Kozłowski, Sebastian, and Krzysztof Kurek. "Channel Occupancy Measurements in 868 MHz ISM Band in Residential Areas." Sensors 21, no. 23 (2021): 7805. http://dx.doi.org/10.3390/s21237805.

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The rapid development of Internet of Things (IoT) has led to more and more devices using ISM frequency bands. Because they are not time synchronized, medium access collisions are unavoidable. The probability of such a collision is usually reasonably low; however, it increases with the number of transmitters competing for the same frequency channel. For this reason, ISM bands’ occupancy is regularly monitored by researchers. This paper presents the results of the measurement campaign during which a selected part of the 868 MHz ISM frequency band was monitored for the presence of transmissions i

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R., Praveena, Boopathi S.G., Karthi K., and Krishnan K. "Design and Analysis of Fractal Antenna for ISM Band Application." IRO Journal on Sustainable Wireless Systems 7, no. 1 (2025): 73–89. https://doi.org/10.36548/jsws.2025.1.006.

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The research presents the design and analysis of a compact fractal antenna optimized for ISM band applications at operating frequencies of 2.4 GHz and 5.8 GHz. The proposed antenna utilizes a self-similar fractal geometry with overall dimensions of just 10 mm × 10 mm, making it highly suitable for space-constrained wireless devices such as IoT modules, RFID systems, and wearable technology. The feed-line width is precisely optimized at 0.50 mm to ensure effective impedance matching and minimal signal loss. Performance analysis, conducted using CST Microwave Studio, reveals a return loss (S11)

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Zahraoui, I., A. Errkik, M. C. Abounaima, A. Tajmouati, L. E. Abdellaoui, and M. Latrach. "A New Planar Multiband Antenna for GPS, ISM and WiMAX Applications." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 4 (2017): 2018. http://dx.doi.org/10.11591/ijece.v7i4.pp2018-2026.

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In this paper a design of a new antenna with modified ground plane is validated for multiband applications. The proposed modified ground structure is incorporated with a patch antenna to boost the performance. The antenna’s entire area is 59.5x47mm<sup>2</sup> and is printed on an FR-4 substrate and fed by a 50 Ohm microstrip line. This structure is validated in the GPS (1.56-1.58 GHz) band at 1.57 GHz, in the ISM (2.43-2.49 GHz) band at 2.45GHz and in the WiMAX (3.50-3.56 GHz) band at 3.53 GHz. These three frequency bands have good matching input impedance for, S11≤-10 dB. The ant

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Hao, Hong Gang, Wen Shuai Hu, Hai Yan Tian, and Yi Ren. "A Dual-Band LTCC Antenna with Cross Circuitous Structure." Advanced Materials Research 601 (December 2012): 163–67. http://dx.doi.org/10.4028/www.scientific.net/amr.601.163.

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A compact dual-band antenna for ISM (2.45GHz) or WiMAX (3.15GHz) applications by low-temperature co-fired ceramic (LTCC) technology is presented in this paper. The proposed antenna is composed of multi-layer structures to reduce the sizes effectively. The simulated results show that the dimensions of the antenna are 11×4.2×1.2mm3, with the 2:1 VSWR impedance bandwidth definition, the lower and upper band have the bandwidth of 80 and 90 MHz. The novel antenna has realized miniaturization and omni-directional radiation patterns across the whole operating frequency band.

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Ejaz, Asma, Iqra Jabeen, Zia Ullah Khan, et al. "A High Performance All-Textile Wearable Antenna for Wristband Application." Micromachines 14, no. 6 (2023): 1169. http://dx.doi.org/10.3390/mi14061169.

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A compact, conformal, all-textile wearable antenna is proposed in this paper for the 2.45 GHz ISM (Industrial, Scientific and Medical) band. The integrated design consists of a monopole radiator backed by a 2 × 1 Electromagnetic Band Gap (EBG) array, resulting in a small form factor suitable for wristband applications. An EBG unit cell is optimized to work in the desired operating band, the results of which are further explored to achieve bandwidth maximization via floating EBG ground. A monopole radiator is made to work in association with the EBG layer to produce the resonance in the ISM ban

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Gupta, Monish, Vikas Mittal, Jyoti Saxena, and Sushma Gupta. "Miniaturized Microstrip Patch Antenna Array for ISM Band Using Complementary Split Ring Resonator." Wireless Personal Communications 109, no. 4 (2019): 2251–62. http://dx.doi.org/10.1007/s11277-019-06679-2.

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Bondonneau, Louis, Jean-Mathias Grießmeier, Gilles Theureau, and Maciej Serylak. "Low frequency pulsar observations with the international LOFAR station FR606." Proceedings of the International Astronomical Union 13, S337 (2017): 313–14. http://dx.doi.org/10.1017/s1743921317009656.

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AbstractThe pulsar’s signal passes through the interstellar medium (ISM) which leads to both chromatic dispersive delays and multipath pulse broadening. These effects have a strong frequency dependence (f−2 and f−4 respectively). Pulse profiles of pulsars are also frequency-dependent leading to some degeneracy with the ISM imprint. Furthermore, many pulsars show a turnover of their spectrum around ~100 MHz. For all these reasons, the frequency band below 100 MHz contains a lot of information about both the pulsar emission and the ISM. Our study is based on a LOw Frequency ARray (LOFAR) monitor

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Saxena, G., U. Gupta, S. Shukla, et al. "High Isolation Quad-Element SWB-MIMO Antenna with Dual Band-Notch for ISM and WLAN Band Wireless Applications." Advanced Electromagnetics 12, no. 3 (2023): 54–60. http://dx.doi.org/10.7716/aem.v12i3.2080.

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A quad-element super-wideband (2-20GHz) MIMO antenna including dual notched-band response at WiMAX (3.30-3.70GHz) and satellite-band (6.99-8.09GHz) is designed on RO3035 with total dimension of 118mm×86mm×1.67mm. Unique decoupling structure has been deployed to enhance the isolation (˃20dB) between two antenna elements. The fundamental properties of MIMO antennas like bandwidth ratio (10:1), isolation (>18dB), gain (4.14dB), Envelop Correlation-Coefficient (<0.0065), Total Active Reflection-Coefficient (< 0dB), Channel Capacity Loss (<0.25bps/Hz) and radiation patterns are also inv

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B.Santhi Kiran, Et al. "Novel Design of High Performance of MIMO antenna for 5G Bio-Telemetry applications." International Journal on Recent and Innovation Trends in Computing and Communication 11, no. 9 (2023): 1479–86. http://dx.doi.org/10.17762/ijritcc.v11i9.9129.

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A MIMO antenna with 4 L-shaped elements and 2 E-shaped elements for the ISM band and also for wireless communication is proposed in the paper. This antenna contains 4 L slots in an H manner and 2 E slots are cut in the H slot. The dimensions of this proposed antenna are 40*30*1.6mm^3. The substrate used in this antenna is an FR4 substrate with a permittivity of 4.4. The operating frequency of this antenna is 2.4GHz and 5.1GHz. All four L-shaped elements are placed in an orthogonal manner. The maximum gain is -4.4dB and the minimum gain is -16.2. The efficiency of this proposed antenna is 2.45.

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Lehmer, Bret D., Rafael T. Eufrasio, Antara Basu-Zych, et al. "Elevated Hot Gas and High-mass X-Ray Binary Emission in Low-metallicity Galaxies: Implications for Nebular Ionization and Intergalactic Medium Heating in the Early Universe." Astrophysical Journal 930, no. 2 (2022): 135. http://dx.doi.org/10.3847/1538-4357/ac63a7.

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Abstract High-energy emission associated with star formation has been proposed as a significant source of interstellar medium (ISM) ionization in low-metallicity starbursts and an important contributor to the heating of the intergalactic medium (IGM) in the high-redshift (z ≳ 8) universe. Using Chandra observations of a sample of 30 galaxies at D ≈ 200–450 Mpc that have high specific star formation rates of 3–9 Gyr−1 and metallicities near Z ≈ 0.3Z ⊙, we provide new measurements of the average 0.5–8 keV spectral shape and normalization per unit star formation rate (SFR). We model the sample-co

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Islam, Md Shazzadul, Muhammad I. Ibrahimy, S. M. A. Motakabber, A. K. M. Zakir Hossain, and S. M. Kayser Azam. "Microstrip patch antenna with defected ground structure for biomedical application." Bulletin of Electrical Engineering and Informatics 8, no. 2 (2019): 586–95. http://dx.doi.org/10.11591/eei.v8i2.1495.

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Proper narrowband antenna design for wearable devices in the biomedical application is a significant field of research interest. In this work, defected ground structure-based microstrip patch antenna has been proposed that can work for narrowband applications. The proposed antenna works exactly for a single channel of ISM band. The resonant frequency of the antenna is 2.45 GHz with a return loss of around -30 dB. The -10dB impedance bandwidth of the antenna is 20 MHz (2.442-2.462 GHz), which is the bandwidth of channel 9 in ISM band. The antenna has achieved a high gain of 7.04 dBi with an inc

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Md., Shazzadul Islam, I. Ibrahimy Muhammad, M. A. Motakabber S., K. M. Zakir Hossain A., and M. Kayser Azam S. "Microstrip patch antenna with defected ground structure for biomedical application." Bulletin of Electrical Engineering and Informatics 8, no. 2 (2019): 586–95. https://doi.org/10.11591/eei.v8i2.1495.

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Proper narrowband antenna design for wearable devices in the biomedical application is a significant field of research interest. In this work, defected ground structure-based microstrip patch antenna has been proposed that can work for narrowband applications. The proposed antenna works exactly for a single channel of ISM band. The resonant frequency of the antenna is 2.45 GHz with a return loss of around -30 dB. The -10dB impedance bandwidth of the antenna is 20 MHz (2.442-2.462 GHz), which is the bandwidth of channel 9 in ISM band. The antenna has achieved a high gain of 7.04 dBi with an inc

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Miskiewicz, Anna, and Marek Kitliński. "Modified monopole ring antennas as a solution for HiperLAN1/2 and IEEE 802.11b/g standard devices." Journal of Telecommunications and Information Technology, no. 1 (June 24, 2023): 23–25. http://dx.doi.org/10.26636/jtit.2007.1.745.

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A compact planar antenna for multisystem ap- plications has been designed and manufactured. A modified feeding method has been used to meet the requirements of modern telecommunications devices. It has been shown, that by adjusting the size of the rings, required allocation of bands is possible. The proposed antenna is suitable for ISM band devices and gives perspectives for multi-standard operation. The antenna has been simulated using MoM 2.5D software Zeland IE3D, next fabricated and measured.

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Popovic, Zoya. "Wireless powering for low-power distributed sensors." Serbian Journal of Electrical Engineering 3, no. 2 (2006): 149–62. http://dx.doi.org/10.2298/sjee0603149p.

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In this paper, an overview of the field of wireless powering is presented with an emphasis on low-power applications. Several rectenna elements and arrays are discussed in more detail: (1) a 10-GHz array for powering sensors in aircraft wings; (2) a single antenna in the 2.4-GHz ISM band for low-power assisted-living sensors; and (3) a broadband array for power harvesting in the 2-18GHz frequency range.

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Morales-Centla, Nathaniel, Richard Torrealba-Melendez, Edna Iliana Tamariz-Flores, et al. "Dual-Band CPW Graphene Antenna for Smart Cities and IoT Applications." Sensors 22, no. 15 (2022): 5634. http://dx.doi.org/10.3390/s22155634.

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In this paper, a dual-band graphene coplanar waveguide antenna is designed for smart cities and internet of things applications. A graphene film is chosen as the conductive material for the radiation patches and ground plane with a thickness of 240 μm and an electric conductivity of 3.5 × 105 S/m. The dielectric is glass with a dielectric permittivity of 6 and a thickness of 2 mm. The implementation of the antenna on glass permits the integration of the antenna in smart cities and IoT applications. This antenna is based on two trapezoidal patches that generate the dual-band behavior. The overa

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Kaka, Ademola O., Mehmet Toycan, and Stuart D. Walker. "Miniaturized stacked implant antenna design at ISM band with biocompatible characteristics." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 34, no. 4 (2015): 1270–85. http://dx.doi.org/10.1108/compel-02-2015-0032.

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Purpose – A vertically stacked, three layer hybrid Hilbert fractal geometry and serpentine radiator-based patch antenna is proposed and characterized for medical implant applications at the Industrial, Scientific and Medical band (2.4-2.48 GHz). Antenna parameters are optimised to achieve miniaturized, biocompatible and stable transmission characteristics. The paper aims to discuss these issues. Design/methodology/approach – Human tissue effects on the antenna electrical characteristics were simulated with a three-layer (skin, fat and muscle) human tissue model with the dimensions of 180×70×60

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Khan, Faisal A., Chris Rizos, and Andrew G. Dempster. "Locata Performance Evaluation in the Presence of Wide- and Narrow-Band Interference." Journal of Navigation 63, no. 3 (2010): 527–43. http://dx.doi.org/10.1017/s037346331000007x.

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Classically difficult positioning environments often call for augmentation technology to assist the GPS, or more generally the Global Navigation Satellite System (GNSS) technology. The “Locata” ground-based ranging technology offers augmentation, and even replacement, to GPS in such environments. However, like any other system relying on wireless technology, a Locata positioning network also faces issues in the presence of RF interference (RFI). This problem is magnified due to the fact that Locata operates in the licence-free 2·4 GHz Industrial, Scientific and Medical (ISM) band. The licence-

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Najumunnisa, Md, Ambadapudi Srinivasa Chandrasekhara Sastry, Boddapati Taraka Phani Madhav, et al. "A Metamaterial Inspired AMC Backed Dual Band Antenna for ISM and RFID Applications." Sensors 22, no. 20 (2022): 8065. http://dx.doi.org/10.3390/s22208065.

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This work presents the design and fabrication of a metamaterial-based stimulated dual band antenna on FR4 material (dielectric constant 4.3) to operate in Industrial, Scientific and Medical (ISM) and Radio-frequency Identification (RFID) applications. The antenna model had an overall dimension of 70 × 31 × 1.6 mm3 with etched T-slots and L-slots for dual band resonance. The main objective of this work was to enhance the gain performance characteristic at the selected dual band frequencies of 0.915 GHz and 2.45 GHz. Initially, it achieved a narrow bandwidth of 0.018 GHz with a gain of 1.53 dBi

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Alsoufi, Bahaaldin, Courtney McCracken, Lazaros K. Kochilas, Martha Clabby, and Kirk Kanter. "Factors Associated With Interstage Mortality Following Neonatal Single Ventricle Palliation." World Journal for Pediatric and Congenital Heart Surgery 9, no. 6 (2018): 616–23. http://dx.doi.org/10.1177/2150135118787723.

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Background: Several advances have led to improved hospital survival following neonatal palliation (NP) of single ventricle (SV) anomalies. Nonetheless, a number of patients continue to suffer from interstage mortality (ISM) prior to subsequent Glenn. We aim to study patients’ characteristics and anatomic, surgical, and clinical details associated with ISM. Methods: A total of 453 SV neonates survived to hospital discharge following NP. Competing risk analysis modeled events after NP (Glenn, transplantation, or death) and examined variables associated with ISM. Results: Competing risk analysis

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Mansour, Mohamed M., Shota Torigoe, Shuya Yamamoto, and Haruichi Kanaya. "Compact and Simple High-Efficient Dual-Band RF-DC Rectifier for Wireless Electromagnetic Energy Harvesting." Electronics 10, no. 15 (2021): 1764. http://dx.doi.org/10.3390/electronics10151764.

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(1) Background: This work presents a high-efficiency, high sensitivity, compact rectifier based on a dual-band impedance matching network that employs a simple and straightforward T-matching circuit, for sub-1 GHz license-free applications. The development of a low-cost RF energy harvester dedicated to the ISM bands is introduced. The proposed rectifier design is optimized to operate at the sub-GHz frequency bands (0.9 to 2.4 GHz), specifically those at the ISM 900 and 2400 MHz. The motivation for this band is due to the low attenuation, well-known fundamental electromagnetic theories and back

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Skemer, Andrew J., Laird M. Close, Philip M. Hinz, et al. "ISM DUST GRAINS ANDN-BAND SPECTRAL VARIABILITY IN THE SPATIALLY RESOLVED SUBARCSECOND BINARY UY Aur,,." Astrophysical Journal 711, no. 2 (2010): 1280–90. http://dx.doi.org/10.1088/0004-637x/711/2/1280.

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Do-Duy, Tho, Christopher M. Wright, Takuya Fujiyoshi та ін. "Crystalline silicate absorption at 11.1 μm: ubiquitous and abundant in embedded YSOs and the interstellar medium". Monthly Notices of the Royal Astronomical Society 493, № 3 (2020): 4463–517. http://dx.doi.org/10.1093/mnras/staa396.

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ABSTRACT Utilizing several instruments on 4–8 m telescopes, we have observed a large sample of objects in the mid-infrared (8–13 μm). These comprise a few evolved stars, multiple envelopes of embedded young stellar objects (YSOs) or compact H-II regions, and several sightlines through the interstellar medium (ISM). The latter is where dust resides – and is potentially modified – between its formation in evolved stellar outflows and deposition in molecular clouds. In most objects, we detect not only the well-known 9.7 μm absorption feature of amorphous silicates but also a second absorption ban

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Otman, Oulhaj, Naima A. Touhami, Mohamed Aghoutane, and Abdelmounaim Belbachir Kchairi. "A New Design of a Wideband Miniature Antenna Array." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 4 (2017): 1850. http://dx.doi.org/10.11591/ijece.v7i4.pp1850-1857.

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In this work, we present a new configuration of a new miniature microstrip antenna array having a wide frequency band and with a circular polarization. The bandwidth is about 2GHz for a reflection coefficient under -10dB and centered on the ISM ‘Industrial Scientific Medical’ band at 5.8 GHz. To design such array, we have started the design by validating one antenna element at 10 GHz and after that by using the technique of defected ground, we have validated the antenna array in the frequency band [4 GHz -6 GHz] which will permit to miniature the dimensions. The final fabricated antenna array

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Kishore, M. Purna, B. T. P. Madhav, and S. S. Mohan Reddy. "Metamaterial Inspired Gain Enhanced Elliptical Curved CPW fed Multiband Antenna for Medical and Wireless Communication Applications." Biomedical and Pharmacology Journal 12, no. 2 (2019): 729–37. http://dx.doi.org/10.13005/bpj/1695.

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This article presents a novel elliptical curved coplanar waveguide fed antenna with defected ground. Electromagnetic coupling between splitring resonator (SRR) on other side to the substrate to CPW feeding line on the top side resulting the frequency notches in the wideband. The SRR shaped etched portion in the ground plane not only miniaturizing the antenna, but also providing good bandwidth in the operating bands. Antenna providing multiband characteristics for PCS, Bluetooth, LTE, ISM (Medical Application Band) and Wi-Fi communication (2-3.6 GHz), WLAN IEEE 802.11a/h/j/n (4.5-5.825 GHz), sa

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Ullah, Md, Mohammad Islam, Touhidul Alam, and Farhad Ashraf. "Paper-Based Flexible Antenna for Wearable Telemedicine Applications at 2.4 GHz ISM Band." Sensors 18, no. 12 (2018): 4214. http://dx.doi.org/10.3390/s18124214.

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This paper demonstrates the performance of a potential design of a paper substrate-based flexible antenna for intrabody telemedicine systems in the 2.4 GHz industrial, scientific, and medical radio (ISM) bands. The antenna was fabricated using 0.54 mm thick flexible photo paper and 0.03 mm copper strips as radiating elements. Design and performance analyses of the antenna were performed using Computer Simulation Technology (CST) Microwave Studio software. The antenna performances were investigated based on the reflection coefficient in normal and bent conditions. The total dimensions of the pr

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G, S. K. Gayatri Devi, Krishna Veni S, Vidyavathi T, and Jalal Ahmad Syed. "Design of a Compact ISM-band Microstrip Slot Antenna for Wireless Sensor Nodes." Indian Journal of Science and Technology 15, no. 38 (2022): 1958–64. https://doi.org/10.17485/IJST/v15i38.1678.

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Abstract <strong>Objective:</strong> To enhance the design and implementation of microstrip antenna for wireless Sensor Networks (WSN) in real-time applications<strong> Methods:</strong> This study uses radio communication to connect end nodes and forms a multihop self-organizing network with a dynamic topology. Also, the antenna is fabricated from low-cost FR-4 printed circuit board (PCB) material. The designed rectangular patch antenna operates in the industrial, scientific, and medical (ISM) frequency band of 2.45 GHz, and HFSS software analyzer is used to authenticate the pr

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Sara, El Mattar, Baghdad Abdennaceur, and Ballouk Abdelhakim. "A 2.45/5.8 GHz high-efficiency dual-band rectifier for low radio frequency input power." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 3 (2022): 2169–76. https://doi.org/10.11591/ijece.v12i3.pp2169-2176.

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This article proposes a concurrent rectifier for radio frequency (RF) energy harvesting from the popular ambient RF sources wireless fidelity (WiFi) 2.45 and 5.8 GHz bands. A voltage doubler-based converter circuit with the Schottky SMS7630 diode is used, this chosen diode has shown good results for low power levels. To ameliorate the resulting circuit, we used an interdigital capacitor (IDC) instead of a lumped component; and then we added a filter to reject the 3rd harmonics of each operating frequency. A dual-band impedance transformer with a direct current (DC) block function is used and o

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Chung, Dongwoo T. "Constraining the halo-ISM connection through multi-transition carbon monoxide line-intensity mapping." Journal of Cosmology and Astroparticle Physics 2023, no. 12 (2023): 024. http://dx.doi.org/10.1088/1475-7516/2023/12/024.

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Abstract Line-intensity mapping (LIM) surveys will characterise the cosmological large-scale structure of emissivity in a range of atomic and molecular spectral lines, but existing literature rarely considers whether these surveys can recover excitation properties of the tracer gas species, such as the carbon monoxide (CO) molecule. Combining basic empirical and physical assumptions with the off-the-shelf Radex radiative transfer code or a Gaussian process emulator of Radex outputs, we devise a basic dark matter halo model for CO emission by tying bulk CO properties to halo properties, exposin

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Mohd Sahar, Norsuzlin, Mohammad Tariqul Islam, Norbahiah Misran, and Nur Hazliza Ariffin. "Equivalent Circuit of Dual-Band Dipole Integrated Antenna for RFID Application." Jurnal Kejuruteraan 36, no. 2 (2024): 641–51. http://dx.doi.org/10.17576/jkukm-2024-36(2)-23.

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This paper presents dual band antenna by designing basic dipole antenna integrated with C-shaped patches structure for RFID applications. This C-shaped patch is inspired by E-shapes patch antenna that able to perform multiband frequency. The design of the equivalent circuit started with the fundamental circuit of impedance Zo and Z1 which functioned as a dipole antenna in single band. The parallel RLC circuit of impedance Z2 is added in the circuit as loaded patch has affected the resonating frequency. Variations of C1 and L1 on impedance Z1 effect a gap between the two resonance frequencies w

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Silva Júnior, Paulo Fernandes, Ewaldo Santana, Mauro Sergio Silva Pinto, Alexandre Serres, Camila Caroline Rodrigues De Albuquerque, and Raimundo Freire. "Bio-Inspired On-Chip Antenna Array for ISM Band60 GHz Application." Journal of Integrated Circuits and Systems 14, no. 2 (2019): 1–5. http://dx.doi.org/10.29292/jics.v14i2.53.

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A flower-shape bio-inspired aperture-coupled antenna array for on-chip application, generated by Gielis formula, operating in industrial, scientific and medical (ISM) band at 60 GHz (57 GHZ to 64 GHz) is presented in this paper. The antenna proposed is composed of a transmission feed line followed by an aperture and patch element built in aluminum, with 2 micrometers of thickness, lying on two layers of silicon with 200 micrometers of thickness each. Dimensions of the antennas were calculated according to the effective wavelength for the resonance frequency at 60 GHz. Simulations were performe

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S., M. Shah, A. Rosman A., A. Z. A. Rashid M., et al. "A compact dual-band semi-flexible antenna at 2.45 GHz and 5.8 GHz for wearable applications." Bulletin of Electrical Engineering and Informatics 10, no. 3 (2021): pp. 1739~1746. https://doi.org/10.11591/eei.v10i3.2262.

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In this work, a compact dual-band semi-flexible antenna operating at 2.45 GHz and 5.8 GHz for the industrial, scientific and medical (ISM) band is presented. The antenna is fabricated on a semi-flexible substrate material, Rogers Duroid RO3003™ with a low-profile feature with dimensions of 30×38 mm2 which makes it a good solution for wearable applications. Bending investigation is also performed over a vacuum cylinder and the diameters are varied at 50 mm, 80 mm and 100 mm, that represents the average human arm’s diameter. The bending investigation shows that reflection coeff

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Ramacharya, Srinivas. "Dual Band Partial Ground Symmetrical Slit Rectangular Monopole Microstrip Antenna for Wireless Communication Applications." Journal of Advance Research in Aeronautics and Space Science 08, no. 3&4 (2022): 6–9. http://dx.doi.org/10.24321/2454.8669.202102.

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The dual band partial ground symmertrical slit monopole rectangular microstrip antenna for broadband wireless communication applications is proposed in this paper. In the proposed geometry symmetrical slits are introduced at rectangular microstrip patch close to radiating edges. The height Lg on ground plane introduced the gap which hepls to resonate the designed antenna near to designed frequency with increased bandwith. The symmetrical slits on edges of radiating patch provides the dual operationbands. The impedance bandwidth covers the frequency range from 1.36 - 2.3 GHz and 3 - 5 GHz with

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Ramacharya, Srinivas. "Dual Band Partial Ground Symmetrical Slit Rectangular Monopole Microstrip Antenna for Wireless Communication Applications." Journal of Advance Research in Aeronautics and Space Science 08, no. 3&4 (2022): 6–9. http://dx.doi.org/10.24321/2454.8669.202102.

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The dual band partial ground symmertrical slit monopole rectangular microstrip antenna for broadband wireless communication applications is proposed in this paper. In the proposed geometry symmetrical slits are introduced at rectangular microstrip patch close to radiating edges. The height Lg on ground plane introduced the gap which hepls to resonate the designed antenna near to designed frequency with increased bandwith. The symmetrical slits on edges of radiating patch provides the dual operationbands. The impedance bandwidth covers the frequency range from 1.36 - 2.3 GHz and 3 - 5 GHz with

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Perrero, Jessica, Leire Beitia-Antero, Asunción Fuente, Piero Ugliengo, and Albert Rimola. "Binding Energies and Vibrational Spectral Features of S_n Species on Amorphous Water-ice Mantles: A Quantum Mechanical Study." Astrophysical Journal 971, no. 1 (2024): 36. http://dx.doi.org/10.3847/1538-4357/ad5548.

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Abstract In the denser and colder regions of the interstellar medium (ISM), gas-phase sulfur is depleted by 2 or 3 orders of magnitude with respect to its cosmic abundance. Thus, which species are the main carriers of sulfur is an open question. Recent studies have proposed S n species as potential sulfur reservoirs. Among the various sulfur allotropes, the most stable one is the S8 ring, detected in the asteroid Ryugu and Orgueil meteorite. Shorter species, namely S3 and S4, have been found in the comet 67P/C-G, but their presence in the ISM remains elusive. In this study, we compute the bind

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Vasylkivskyi, Y., O. Konovalenko, and S. Stepkin. "Observations of decameter carbon radio recombination lines in several galactic directions. Part 1. Experimental study." RADIO PHYSICS AND RADIO ASTRONOMY 28, no. 3 (2023): 201–11. http://dx.doi.org/10.15407/rpra28.03.201.

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Subject and Purpose. Since decameter carbon radio recombination lines (RRLs) were detected for the first time more than forty years ago, they have significantly extended our knowledge of the physics, kinematics and chemistry of the cold rarefied interstellar medium (ISM). A large number of these lines have been observed towards various Galactic radio sources. The present paper describes our studies of decameter carbon RRLs in such Galactic directions as the sight-lines to the S140 emission nebula and to the large volume of cold neutral hydrogen known as the GSH 139-03-69 super shell. Methods a

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D., Subitha, Vani R., Raja A., Balasubramani S., Manjunathan A., and Kibebe Sahile. "Development of Novel Nano-Silver-Based Antenna for Green Agriculture." Advances in Materials Science and Engineering 2021 (September 28, 2021): 1–9. http://dx.doi.org/10.1155/2021/9065960.

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The designed antenna is a monopole Z-shaped antenna operating in an unlicensed band of 2.4 GHz fabricated using low cost inkjet printing technology. The proposed inkjet printing technology is eco-friendly since the material used here is an ordinary “paper” that is suitable for the green technology. The conducting patch of silver nanoparticle (AgNP) ink has very high conductivity 35,700,000 s/m and instant curing property which helps in fabrication process without UV curing or oven heating. The printer used also is the cheap home printer HP DJ 2130 rather than the expensive Brother and Epson pr

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