Advanced Electromagnetics最新文献_第8页

MIMO CPW-Fed Bent Antenna Based USB Dongle for ECMA-368 WPANs ECMA-368无线局域网中基于MIMO cpw馈电弯曲天线的USB加密狗

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Advanced Electromagnetics Pub Date : 2021-12-15 DOI: 10.7716/aem.v10i3.1676

Y. Beddiafi, D. Abed, A. Boualleg, E. Mehallel

引用次数: 0

Multi-Band Polarization Insensitive Ultra-Thin THz Metamaterial Absorber for Imaging and EMI Shielding Applications 用于成像和电磁干扰屏蔽的多波段偏振不敏感超薄太赫兹超材料吸收器

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Advanced Electromagnetics Pub Date : 2021-11-12 DOI: 10.7716/aem.v10i3.1759

G. Saxena, Y. Khanna, Yogendra Kumar Awasthi, P. Jain

引用次数: 1

CSRR-DGS Bandpass Filter Based on Half Mode Substrate Integrated Waveguide for X-Band Applications 基于半模衬底集成波导的x波段CSRR-DGS带通滤波器

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Advanced Electromagnetics Pub Date : 2021-11-11 DOI: 10.7716/aem.v10i3.1782

B. Fellah, N. Cherif, M. Abri, H. Badaoui

引用次数: 3

Square Waveguide Polarizer with Diagonally Located Irises for Ka-Band Antenna Systems 用于ka波段天线系统的对角定位虹膜方形波导偏振器

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Advanced Electromagnetics Pub Date : 2021-10-26 DOI: 10.7716/aem.v10i3.1780

S. Piltyay

{"title":"Square Waveguide Polarizer with Diagonally Located Irises for Ka-Band Antenna Systems","authors":"S. Piltyay","doi":"10.7716/aem.v10i3.1780","DOIUrl":"https://doi.org/10.7716/aem.v10i3.1780","url":null,"abstract":"This article presents the results of development and optimization of a new square waveguide polarizer with diagonally located square irises. The application of suggested geometrical modification of irises form and location instead of a standard wall-to-wall irises configuration allows to exclude 45-degree twists between wideband waveguide polarizer and orthomode transducer of a dual-polarized antenna feed system. In addition, a waveguide polarizer and polarization duplexer can be manufactured by milling technology as two single details, which makes the proposed engineering solution reliable, simple for simulation, development and application. Suggested new polarizer design was developed for the satellite operating Ka-band. It contains 12 irises, which are symmetrically located in the diagonal corners of a square waveguide. Obtained optimal polarization converter provides excellent matching and polarization performance. The maximum level of VSWR is less than 1.04 for both orthogonal polarizations. Values of cross-polarization discrimination are higher than 32 dB in the operating Ka-band. Developed square waveguide polarizer with diagonally located irises can be applied in modern wideband satellite antennas.","PeriodicalId":44653,"journal":{"name":"Advanced Electromagnetics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46086241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Electromagnetic Simulation of New Tunable Guide Polarizers with Diaphragms and Pins 新型膜片引脚可调谐波导偏振器的电磁仿真

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Advanced Electromagnetics Pub Date : 2021-10-26 DOI: 10.7716/aem.v10i3.1737

S. Piltyay, A. Bulashenko, V. Shuliak, O. Bulashenko

{"title":"Electromagnetic Simulation of New Tunable Guide Polarizers with Diaphragms and Pins","authors":"S. Piltyay, A. Bulashenko, V. Shuliak, O. Bulashenko","doi":"10.7716/aem.v10i3.1737","DOIUrl":"https://doi.org/10.7716/aem.v10i3.1737","url":null,"abstract":"In this article we present the results of mathematical simulation, development and optimization of a waveguide polarizer with a diaphragm and pins. A mathematical model was developed using the proposed approach on the example of a waveguide polarizer with one diaphragm and two pins. The diaphragm and pins were modeled as inductive or capacitive elements for two types of linear polarization of the fundamental modes. The applied model uses a wave scattering matrix. The total matrix of a polarizer was obtained using wave matrices of transmission of individual elements of the device structure. Using the elements of the common S-parameters the electromagnetic characteristics of the device, which is considered, were obtained. To check the performance of the developed mathematical model, it was simulated in a software using the finite element technique in the frequency domain. The designed structure of the polarizer is adjustable due to mechanical change in the length of the pins. The developed waveguide polarizer with one diaphragm and two pins provides a reflection coefficient of less than 0.36 and a transmission coefficient of more than 0.93 for two types of polarizations. Therefore, a new theoretical method was developed in the article for analysis of scattering matrix elements of a waveguide polarizer with diaphragms and pins. It can also be used for the development of new tunable waveguide polarizers, filters and other components with diaphragms and pins.","PeriodicalId":44653,"journal":{"name":"Advanced Electromagnetics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46692010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Compact Broadband Microstrip Triangular Antennas Fed By Folded Triangular Patch for Wireless Applications 用于无线应用的折叠三角形贴片馈电的紧凑型宽带微带三角形天线

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Advanced Electromagnetics Pub Date : 2021-10-16 DOI: 10.7716/aem.v10i3.1682

H. Malekpoor, M. Shahraki

{"title":"Compact Broadband Microstrip Triangular Antennas Fed By Folded Triangular Patch for Wireless Applications","authors":"H. Malekpoor, M. Shahraki","doi":"10.7716/aem.v10i3.1682","DOIUrl":"https://doi.org/10.7716/aem.v10i3.1682","url":null,"abstract":"This study presents two new designs of reduced size broadband microstrip patch antennas for ultra-wideband (UWB) operation. A folded triangular patch’s feeding technique, V-shaped slot, half V-shaped slot and shorting pins are employed to design the suggested antennas. The shorting pins are applied at the edge of structures to miniaturize the size of the patches. The suggested design with the V-shaped slot provides the measured impedance bandwidth (S11˂-10 dB) of 3.91-12 GHz (101.7%) for broadband application. In the suggested design with the V-shaped slot, the wide bandwidth with an acceptable size reduction is achieved. By introducing a suggested half design with the half V-shaped slot, the impedance bandwidth of the proposed half structure is improved from 4 to 17.22 GHz. The half design includes a measured impedance bandwidth of 124.6% with reduced size of more than 93% compared to the corresponding full design and an enhanced measured bandwidth of 23%. The obtained radiation and impedance results show that the suggested designs are applicable for wideband operation. Besides, the effects of some basic concepts and surface currents on the suggested structures are investigated to explain their broadband performance.","PeriodicalId":44653,"journal":{"name":"Advanced Electromagnetics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46885790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Frequency Reconfigurable Multiband MIMO Antenna Base on Gradient Arcs for IoT Devices 基于梯度弧的物联网设备频率可重构多频带MIMO天线

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Advanced Electromagnetics Pub Date : 2021-10-14 DOI: 10.7716/aem.v10i2.1524

D. T. T. Tu, N. V. Sang

引用次数: 0

Design of Complementary Hexagonal Metamaterial Based HMSIW Band-Pass Filter and Reconfigurable SIW Filter Using PIN Diodes 基于互补六边形超材料的HMSIW带通滤波器和PIN二极管可重构SIW滤波器的设计

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Advanced Electromagnetics Pub Date : 2021-07-31 DOI: 10.7716/AEM.V10I2.1596

Hichem Boubakar, M. Abri, M. Benaissa

引用次数: 5

A Hybrid Common Mode Choke Optimization Method for Input Line EMI Filter Design 输入线电磁干扰滤波器设计中的混合共模扼流圈优化方法

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Advanced Electromagnetics Pub Date : 2021-07-31 DOI: 10.7716/aem.v10i2.1677

S. Khelladi, K. Saci, A. Hadjadj, A. Ales

引用次数: 1

Comparative Analysis of Compact Satellite Polarizers Based on a Guide with Diaphragms 基于膜片导向的紧凑型卫星偏振器的比较分析

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Advanced Electromagnetics Pub Date : 2021-07-31 DOI: 10.31219/osf.io/jwu24

S. Piltyay

{"title":"Comparative Analysis of Compact Satellite Polarizers Based on a Guide with Diaphragms","authors":"S. Piltyay","doi":"10.31219/osf.io/jwu24","DOIUrl":"https://doi.org/10.31219/osf.io/jwu24","url":null,"abstract":"In this article we carry out the comparative analysis of new compact satellite polarisers based on a square guide with diaphragms. The main electromagnetic parameters of the developed microwave guide devices with various amount of diaphragms were obtained within the satellite frequency interval from 10.7 GHz to 12.75 GHz. Waveguide polarization converters with different amount of diaphragms from 3 to 5 have been designed and optimized. The main parameters of the presented polarizer were calculated applying the numerical method of finite integration in the frequency domain. Optimization of the electromagnetic parameters of the developed waveguide devices was carried out using the finite elements method in the frequency domain. As a result, sizes of the guide polarizer designs have been optimized for the provision of improved polarization and phase parameters. The performed analysis showed that a waveguide polarizer with five diaphragms has the best electromagnetic parameters. The developed compact polarizer with five diaphragms based on a square guide provides a minimum deviation of the output phase difference from 90 degrees and high level of isolation between linear polarization over the entire operating frequency range. Presented in the article compact waveguide polarization converters can be applied in modern satellite systems, which require efficient polarization transformation and separation of signals.","PeriodicalId":44653,"journal":{"name":"Advanced Electromagnetics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49486066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 21