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2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)最新文献

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Experimental evaluation on optical leaky waveguide antenna by waffle-iron structure 华夫-铁结构光漏波导天线的实验评价
2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2020-08-26 DOI: 10.1109/iwem49354.2020.9237429
Shunichi Kaneoka, Wataru Iida, Hiroshi Hashiguchi, T. Baba, H. Arai
{"title":"Experimental evaluation on optical leaky waveguide antenna by waffle-iron structure","authors":"Shunichi Kaneoka, Wataru Iida, Hiroshi Hashiguchi, T. Baba, H. Arai","doi":"10.1109/iwem49354.2020.9237429","DOIUrl":"https://doi.org/10.1109/iwem49354.2020.9237429","url":null,"abstract":"This paper presents the comparison of optical leaky waveguide antenna, i.e., grating waveguide (GWG), waffle waveguide (WWG) and waffle-iron waveguide (WIWG) by the optical experiment.","PeriodicalId":201518,"journal":{"name":"2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129941256","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
Overview of the Performance Verification for Wireless Communication System : * Note: Sub-titles are not captured in Xplore and should not be used 无线通信系统性能验证概述:*注:在Xplore中不捕获字幕，不应使用
2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2020-08-26 DOI: 10.1109/iWEM49354.2020.9237454
Kevin Chen
{"title":"Overview of the Performance Verification for Wireless Communication System : * Note: Sub-titles are not captured in Xplore and should not be used","authors":"Kevin Chen","doi":"10.1109/iWEM49354.2020.9237454","DOIUrl":"https://doi.org/10.1109/iWEM49354.2020.9237454","url":null,"abstract":"Wireless communication development is based on the needed information transferred by the user demands. Thus the verification for this purpose is always required between the system provider and users. There are many testing requirements dealing with performance issue for specific technology. We are here to make an overview on these requirements and try to conclude and summarize the key characteristics to be verified. Hope this make it simplifier for third party to support industry to develop the performance verification in an effective way.","PeriodicalId":201518,"journal":{"name":"2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115988870","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 Triple-Band Slot Antenna by Using Balun Excitation and Ground Radiation 基于Balun激励和地辐射的三波段缝隙天线
2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2020-08-26 DOI: 10.1109/iWEM49354.2020.9237448
Y. Cheng, Chia-Wei Hsu, Chien‐Jen Wang
{"title":"A Triple-Band Slot Antenna by Using Balun Excitation and Ground Radiation","authors":"Y. Cheng, Chia-Wei Hsu, Chien‐Jen Wang","doi":"10.1109/iWEM49354.2020.9237448","DOIUrl":"https://doi.org/10.1109/iWEM49354.2020.9237448","url":null,"abstract":"In this work, we have successfully designed and fabricated a triple-band grounded radiation antenna for applications of the multiple-system integration. An eight-like-loop slit is embedded in the ground. An eight-like-loop slit is etched in the ground plane to excite multiple resonant modes. Additionally, by embedding two rectangular slots at two terminals of the eight-like-loop slit, the capacitance of the ground plane resonator decreases such that the impedance matching condition in the upper-frequency band can be improved. Finally, a triple-band frequency response is derived by etching a simple matching circuit. The proposed antenna achieves the measured impedance bandwidths from 1.02 to 1.06, from 1.35 to 1.62, and from 1.96 to 2.55 GHz.","PeriodicalId":201518,"journal":{"name":"2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115998109","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
Copyright 版权
2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2020-08-26 DOI: 10.1109/iwem49354.2020.9237441
{"title":"Copyright","authors":"","doi":"10.1109/iwem49354.2020.9237441","DOIUrl":"https://doi.org/10.1109/iwem49354.2020.9237441","url":null,"abstract":"","PeriodicalId":201518,"journal":{"name":"2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122518365","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
Dual-Linearly-Polarized Printed Dual-Dipole Antenna Array for Polarimetric Radar Application 双线偏振印刷双偶极子天线阵列在极化雷达中的应用
2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2020-08-26 DOI: 10.1109/iWEM49354.2020.9237416
I. Huang, Chin-Lung Liao, Shih-Yuan Chen
{"title":"Dual-Linearly-Polarized Printed Dual-Dipole Antenna Array for Polarimetric Radar Application","authors":"I. Huang, Chin-Lung Liao, Shih-Yuan Chen","doi":"10.1109/iWEM49354.2020.9237416","DOIUrl":"https://doi.org/10.1109/iWEM49354.2020.9237416","url":null,"abstract":"This paper presents a dual-linearly-polarized printed dual-dipole antenna array and its polarimetric radar system application. A 5×5 antenna array with a 3-D feeding circuit for S-band is designed, fabricated, and tested. For the array, the half-power beamwidth is around 20 degrees with a gain of 16.1±0.8 dBi and 15.75±0.75 dBi for the x- and y-polarized sub-arrays, respectively, from 3.1 GHz to 3.5 GHz. The efficiency is larger than 60% and 69% for the x- and y-polarized sub-arrays, respectively.","PeriodicalId":201518,"journal":{"name":"2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"84 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127979738","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 New Design of AC Voltage Probe for EMI Conducted Emission Measurement 一种用于电磁干扰传导发射测量的新型交流电压探头设计
2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2020-08-26 DOI: 10.1109/iWEM49354.2020.9237452
Chih-Hung Lee, D. Lin, Hsin-Piao Lin
{"title":"A New Design of AC Voltage Probe for EMI Conducted Emission Measurement","authors":"Chih-Hung Lee, D. Lin, Hsin-Piao Lin","doi":"10.1109/iWEM49354.2020.9237452","DOIUrl":"https://doi.org/10.1109/iWEM49354.2020.9237452","url":null,"abstract":"In this paper, we proposed a new design AC voltage probe for EMI AC conduction pretest and debug. This AC voltage probe has a strong positive correlation with the results of LISN. It can be used for the designers and engineers to check if the product can meet the limit of AC conducted noises before the final test. The different type and value capacitors were applied for this probe and the best configuration was found in the study. The proposed structure has been implemented for the conducted emissions measurement from 150 kHz to 30 MHz, which is verified to fulfill the preliminary test of DUT. This probe is simple and useful for AC conduction pretest in the stage of design, and it is also a low-cost and effective tool for EMI AC conduction problems diagnosis and debug.","PeriodicalId":201518,"journal":{"name":"2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131060379","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
Simulating and verifying the electromagnetic interference on the four-layer PCB 对四层PCB上的电磁干扰进行了仿真验证
2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2020-08-26 DOI: 10.1109/iWEM49354.2020.9237420
Yu-Cong Wang, Chih-Cheng Li, You-sheng Li, S. Wu
{"title":"Simulating and verifying the electromagnetic interference on the four-layer PCB","authors":"Yu-Cong Wang, Chih-Cheng Li, You-sheng Li, S. Wu","doi":"10.1109/iWEM49354.2020.9237420","DOIUrl":"https://doi.org/10.1109/iWEM49354.2020.9237420","url":null,"abstract":"This paper simulates and verifies the conducted interference of EMI on the basis of four-layer template, and proposes to suppress the noise by destroying the resonant cavity or the return current. One suppression proposal which designs a planar passive circuit, which is placed on the metal plane of the resonant cavity, forming a special pattern, it can be a filter, transformer or divider, suppressing noise at a specific frequency, the other one is using the differential signal. Finally, we mainly using HFSS to simulate the scattering parameters of the top transmission line and the line of differential signal to verify the EMI effect on the four-layer template.","PeriodicalId":201518,"journal":{"name":"2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124094747","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
Automatic Target Recognition in SAR Images Based on a Combination of CNN and SVM 基于CNN和SVM的SAR图像目标自动识别
2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2020-08-26 DOI: 10.1109/iWEM49354.2020.9237422
Tzong-Dar Wu, Yuting Yen, J. H. Wang, R. Huang, Hung-Wei Lee, Hsuan-Fu Wang
{"title":"Automatic Target Recognition in SAR Images Based on a Combination of CNN and SVM","authors":"Tzong-Dar Wu, Yuting Yen, J. H. Wang, R. Huang, Hung-Wei Lee, Hsuan-Fu Wang","doi":"10.1109/iWEM49354.2020.9237422","DOIUrl":"https://doi.org/10.1109/iWEM49354.2020.9237422","url":null,"abstract":"In recent years, convolutional neural network (CNN) has been increasingly considered as a promising technology for military and homeland security applications. The fusion of CNN and Support vector machine (SVM), a popular traditional machine learning approach, has received intensive attention in the field of synthetic aperture radar (SAR) automatic target recognition (ATR). This paper, firstly, discusses the effects of some preprocessing and image enhancement methods on the performance of SAR ATR, starting with the pre-trained AlexNet in a transfer-learning based approach. Secondly, the architecture of AlexNet is modified to form a new model suitable for SAR ATR. Finally, we propose a hybrid model associated with the success of the learning feature of our CNN model and the ability of SVM to process high-dimensional dataset effectively. To evaluate the proposed method, experiments are performed on the Moving and Stationary Target Acquisition and Recognition (MSTAR) public database. The comparative results demonstrate that these preprocessing and enhancement methods prior to the deep-learning process are not necessary since the feature representation ability of AlexNet is already powerful. Furthermore, experimental results on the benchmark MSTAR dataset illustrate the effectiveness of the proposed new model. On classification of ten-class targets, the commonly used translation augmentation for training data has been performed. By combining the CNN and SVM, the classification accuracy percentages can be slightly improved for our proposed new model.","PeriodicalId":201518,"journal":{"name":"2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114568828","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: 6
Broadband and High-Gain Antenna for Frequency-Coded Chipless RFID Handheld Readers 用于频率编码无芯片RFID手持阅读器的宽带和高增益天线
2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2020-08-26 DOI: 10.1109/iWEM49354.2020.9237395
Yi-Xin Lin, Yen‐Sheng Chen
{"title":"Broadband and High-Gain Antenna for Frequency-Coded Chipless RFID Handheld Readers","authors":"Yi-Xin Lin, Yen‐Sheng Chen","doi":"10.1109/iWEM49354.2020.9237395","DOIUrl":"https://doi.org/10.1109/iWEM49354.2020.9237395","url":null,"abstract":"A high-gain antenna covering 1.7-5.5 GHz based on a quasi-Yagi structure is proposed for frequency-coded chipless radiofrequency identification (RFID) handheld readers. To enhance the capacity of chipless RFID, a broadband spectrum is required. In addition, when chipless tags are arranged facing the reader, a high-gain reader antenna is desired such that detection reliability can be improved. To meet the two requirements simultaneously, we propose an antenna that uses the quasi-Yagi configuration with a broadened impedance bandwidth and large front-to-back ratio (FBR). The bandwidth improvement is achieved using a bow-tie shaped driven dipole. The enhancement of gain is obtained using optimized parameters for directors and a reflector. Simulated results indicate that the impedance bandwidth is 1.70-5.53 GHz. The broadside gain and FBR vary over the passband are 3.7-5.3 dBi and 4.8-16.8 dB, respectively. The performance of the antenna is suitable for the chipless RFID system that has a data capacity of 21 bits.","PeriodicalId":201518,"journal":{"name":"2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125918825","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
Compact Shorted C-Shaped Patch Antenna for UHF RFID Tag Mounted on Metallic Objects 用于安装在金属物体上的超高频RFID标签的紧凑型短型c形贴片天线
2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2020-08-26 DOI: 10.1109/iWEM49354.2020.9237434
Nguyen Minh Tan, Yi‐Fang Lin, Chun-Hsien Chang, Chia‐Te Liao, Hua‐Ming Chen
{"title":"Compact Shorted C-Shaped Patch Antenna for UHF RFID Tag Mounted on Metallic Objects","authors":"Nguyen Minh Tan, Yi‐Fang Lin, Chun-Hsien Chang, Chia‐Te Liao, Hua‐Ming Chen","doi":"10.1109/iWEM49354.2020.9237434","DOIUrl":"https://doi.org/10.1109/iWEM49354.2020.9237434","url":null,"abstract":"This study describes a design of a tag antenna for Radio Frequency Identification (RFID) in the Ultra-High Frequency (UHF) which allows different tuning methods to tune the antenna's impedance on metallic objects. The compact patch antenna consists of a C-Shaped resonator and a ground plane connected a small shorting wall and fed by a loop in the middle of the C-Shaped resonator. A couple of slits etched around the shorting wall and a slot etched in the center of the C-shaped resonator result in a flexible adjusting method to match a conjugating impedance with the UCODE 8/8m chip (19 - j234 Ω at 915 MHz). The optimal design with an overall size of 30 × 30 × 3 mm3 (0.092 λ0 x 0.092 λ0 x 0.0092 λ0) yields a reading range of 6.4 m for the effective isotropic radiated power (EIRP) of 4.0 W.","PeriodicalId":201518,"journal":{"name":"2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124495741","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
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