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2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)最新文献

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A Coplanar Feed Quad-Band Notched UWB Antenna 一种共面馈电四带陷波超宽带天线
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887906
Jia-Ming Xu, Cheng-zhu Du, Gaoya Jin, Kaiming Li, Wei-Qing Zheng, Z. Zhao
{"title":"A Coplanar Feed Quad-Band Notched UWB Antenna","authors":"Jia-Ming Xu, Cheng-zhu Du, Gaoya Jin, Kaiming Li, Wei-Qing Zheng, Z. Zhao","doi":"10.1109/iWEM.2019.8887906","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887906","url":null,"abstract":"In this letter, a coplanar feed quad-band notched UWB Antenna which is ground with slots is designed. This antenna uses FR4 with dielectric constant of 4.4 and thickness of 0.8 mm as dielectric substrate. The size of antenna is 30 mm × 20 mm. By etched different sizes and shapes of slot on circular radiation patches and coplanar floors, four notches covering 3.12-4.01 GHz, 5.02-5.49 GHz, 5.57-6.03 GHz and 7.00-8.00 GHz are obtained, which can avoid signal interference from WiMAX, WLAN and X-band respectively, and the antenna also have good far-field radiation characteristics.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126339330","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: 2
Reproducibility of Embroidered Electromagnetically Coupled Wearable Patch Antennas 刺绣电磁耦合可穿戴贴片天线的再现性
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887940
Daiki Ichikawa, T. Maeda
{"title":"Reproducibility of Embroidered Electromagnetically Coupled Wearable Patch Antennas","authors":"Daiki Ichikawa, T. Maeda","doi":"10.1109/iWEM.2019.8887940","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887940","url":null,"abstract":"The reproducibility of electromagnetically coupled wearable patch antennas was experimentally investigated in terms of the measurements for electromagnetically fed embroidered patch antennas. The stability of resonant frequency, bandwidth, gain, and radiation pattern were all assessed in the 2-GHz band in a sample of embroidered patch antennas fabricated on felt with conductive yarn. Results revealed that the electromagnetically coupled patch antennas demonstrated outstanding reproducibility even when embroidered on a mechanically flexible felt substrate.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131751217","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: 1
Multi-mode Printed Antenna with Orbital Angular Momentum Mode 轨道角动量模式多模印刷天线
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887908
Takuya Sato, R. Kuse, T. Fukusako
{"title":"Multi-mode Printed Antenna with Orbital Angular Momentum Mode","authors":"Takuya Sato, R. Kuse, T. Fukusako","doi":"10.1109/iWEM.2019.8887908","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887908","url":null,"abstract":"A patch antenna generating plane wave and orthogonal two orbital angular momentum modes (OAM) is presented. A large channel capacity is expected at an identical frequency by using OAM modes for a space multiplex transmission technology. This antenna consists of a single circular patch and a loop elements generating OAM with orders of $l=pm1$ modes and plane wave of $l=0$, respectively. As the result, we have found the possibility of three independent transmission paths at 2.4 GHz.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130257304","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: 0
Study of Electromagnetic Interference of Active Compensation System in Electric Field Suppression Device 电场抑制装置中主动补偿系统的电磁干扰研究
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887951
Zhang Haipeng, Zhang Xiangpeng, Ai Xiayu
{"title":"Study of Electromagnetic Interference of Active Compensation System in Electric Field Suppression Device","authors":"Zhang Haipeng, Zhang Xiangpeng, Ai Xiayu","doi":"10.1109/iWEM.2019.8887951","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887951","url":null,"abstract":"Aiming at the electromagnetic interference problem of the active negative potential compensation system in the electric field suppression device, the electromagnetic interference source is analyzed, the EMI test method is studied, the EMI test platform is established, and the electromagnetic interference of the active negative potential compensation system is analyzed. The verification experiment of electromagnetic interference propagation path is designed. The experimental results show that the new interference propagation path is the main electromagnetic interference propagation path of the active compensation system.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114438859","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: 0
High-gain Dual-polarization Patch Array Antenna for 5 GHz WiFi Application 5 GHz WiFi高增益双极化贴片阵列天线
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887942
C. Liao, Jui-Ching Cheng
{"title":"High-gain Dual-polarization Patch Array Antenna for 5 GHz WiFi Application","authors":"C. Liao, Jui-Ching Cheng","doi":"10.1109/iWEM.2019.8887942","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887942","url":null,"abstract":"A high-gain dual-polarization patch antenna array is proposed. This antenna is formed by $mathbf{8times 8}$. rectangular stacked patches and fed by microstrip lines. One polarization is fed directly at the edge of the patch while the other polarization is fed by slot coupling from the other side of the ground plane. The measured results show that the 10-dB bandwidth satisfies the 5 GHz WiFi bands. The realized gains of the two polarizations are about 17 dB and 25 dB at the center frequency, respectively. The isolation between the two ports is larger than 46 dB.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125135496","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: 0
Negative Impedance Converter with reduced real part of input impedance 输入阻抗实部减小的负阻抗变换器
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887925
Kazushi Sato, R. Kuse, T. Fukusako
{"title":"Negative Impedance Converter with reduced real part of input impedance","authors":"Kazushi Sato, R. Kuse, T. Fukusako","doi":"10.1109/iWEM.2019.8887925","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887925","url":null,"abstract":"The non-Foster matching using negative impedance converters (NICs) circuit enhances the available bandwidth of small antennas due to their non-Foster behavior of reactance. However, since a NIC is connected in series between the antenna and the power source, it is necessary to reduce the real part of input impedance of NIC not to consume the input power. In this research, we reduced the real part of input impedance of NIC using an operational amplifier (op-amp) and improved stability.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129076085","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: 0
A Low-Profile Microstrip Patch Antenna With Enhanced-Bandwidth by employing the Slot and Feeding network 一种采用槽与馈电网络的低轮廓微带贴片天线
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887947
Meijiao Sun, Nengwu Liu, Lei Zhu
{"title":"A Low-Profile Microstrip Patch Antenna With Enhanced-Bandwidth by employing the Slot and Feeding network","authors":"Meijiao Sun, Nengwu Liu, Lei Zhu","doi":"10.1109/iWEM.2019.8887947","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887947","url":null,"abstract":"By employing the U-slot and feeding network, a low-profile aperture-coupled microstrip patch antenna (MPA) is proposed in this paper. Initial, by etching the U-slot on the patch, the second resonant mode is excited around the fundamental mode of the MPA. Then, a square open-loop resonator is introduced below the aperture-coupled MPA for bandwidth-enhancement, thus exciting the third resonant mode. Finally, this proposed MPA is simulated and discussed. The result shows this antenna has generated the bandwidth for $vert pmb{S_{11}}vert pmb{< -10}mathbf{dB}$ of about 10.57% under radiation of triple-modes. Meanwhile, the antenna also obtains a stable radiation patterns and relative gain of about 5.258 dBi within the whole working band range.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"234 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120864620","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: 1
Dual-Polarized Bandpass Three-Dimensional FSS Based on Square Waveguide Structure 基于方波导结构的双偏振带通三维FSS
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887943
Zhengyong Yu, Xia Yang, Wanchun Tang, Yongrong Shi
{"title":"Dual-Polarized Bandpass Three-Dimensional FSS Based on Square Waveguide Structure","authors":"Zhengyong Yu, Xia Yang, Wanchun Tang, Yongrong Shi","doi":"10.1109/iWEM.2019.8887943","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887943","url":null,"abstract":"We propose a novel bandpass three dimensional (3D) frequency selective surface. In the periodic unit cell, there are two gridded-square patch (GSP) resonators and a square waveguide filled with air. By the electromagnetic coupling between the two GSP resonators, two transmission poles are produced. Thus, a second-order bandpass response is achieved, and its 3dB fractional bandwidth is 25.12%. In addition, the square waveguide enhances the coupling. A simple equivalent circuit model is constructed and investigated so as to clarify the working principle. The results demonstrate the proposed design exhibits wide 3dB fractional bandwidth, dual polarizations, and good angular stability.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116271445","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: 0
Evaluation of Transparent Antenna 透明天线的评价
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887923
Ikki Tanaka, Y. Kuwahara
{"title":"Evaluation of Transparent Antenna","authors":"Ikki Tanaka, Y. Kuwahara","doi":"10.1109/iWEM.2019.8887923","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887923","url":null,"abstract":"In the recent, the use of multiple antennas such as MIMO communication and miniaturization of communication equipment are spreading. Therefore, it becomes difficult to achieve a space for installing an antenna. As a solution to the problem, we tried to make the antenna transparent. At first, the advantages of transparency and the proposed metal mesh are described. In addition, the proposed method is compared with ITO, which is widely used as a transparent conductive material. Then, the structure of the used antenna is described. Finally, simulation and measurement results are demonstrated to investigate the realization of the transparent antenna.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127179690","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: 0
Directive Radiation Excited by Surface Wave with an Equiangular Spiral-shaped Dielectric 等角螺旋状介质表面波激发的定向辐射
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887917
Bo Wang, H. Wong
{"title":"Directive Radiation Excited by Surface Wave with an Equiangular Spiral-shaped Dielectric","authors":"Bo Wang, H. Wong","doi":"10.1109/iWEM.2019.8887917","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887917","url":null,"abstract":"Surface waves radiation is popular in object tracking, speed detection. Conventionally, SW radiation is achieved by periodic structures generating −1 harmonic of the propagation constant for wave leakage. The leaky mechanism requires a large size to radiate enough energy and serially gradient structures to realize dispersion manipulation. In this paper, we present a new approach of expected radiation implemented by SW diffraction. The amplitude and phase of the SW diffraction can be controlled by the radius in cylindrical coordinate. An equiangular-spiral-shaped grounded dielectric is analyzed. The simulation and measurement results demonstrate that the manipulations of SW diffraction excited by centre monopole can achieve a broadside circularly polarized radiation.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130047904","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: 0
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