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

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Ultra-Wideband Patch Antenna for Sub-6 GHz 5G Communications Sub-6 GHz 5G通信超宽带贴片天线
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887933
Xiaocong Tang, Y. Jiao, Hongfei Li, Weihua Zong, Zhao Yao, F. Shan, Yang Li, Wenjing Yue, Song Gao
{"title":"Ultra-Wideband Patch Antenna for Sub-6 GHz 5G Communications","authors":"Xiaocong Tang, Y. Jiao, Hongfei Li, Weihua Zong, Zhao Yao, F. Shan, Yang Li, Wenjing Yue, Song Gao","doi":"10.1109/iWEM.2019.8887933","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887933","url":null,"abstract":"Microstrip Patch antenna is one of the most important members of the antenna family, due to the advantages of compact size, sample-processing method, low cost and high quality. In order to realize the true 5G wireless communications, new antennas are required for working frequency band obtained by the three Chinese operators covering three 5G bands, including 2.515-2.675 GHz, 3.4-3.6 GHz and 4.8-4.9 GHz. This paper introduces a new design by modifying the structure of ground plane and changing the step-impedance resonator (SIR) to achieve a ultrawideband (UWB) antenna. It covers three 5G bands. The $mathrm{S}_{11}$ parameter is below −10dB from 2.32 GHz to 5.24 GHz, which can also cover WiFi, Bluetooth and WLAN applications. The gains of the designed antenna are 2.52 dBi, 3.04 dBi, 4.31 dBi at the frequency of 2.55 GHz, 3.5 GHz and 4.75 GH, respectively.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"6 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":"131096360","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: 19
Design of Hollow Waveguide to Substrate Integrated Waveguide Transition in Multi-layer Substrate 多层衬底中空心波导向衬底集成波导过渡的设计
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887913
Shota Mariyama, K. Sakakibara, N. Kikuma
{"title":"Design of Hollow Waveguide to Substrate Integrated Waveguide Transition in Multi-layer Substrate","authors":"Shota Mariyama, K. Sakakibara, N. Kikuma","doi":"10.1109/iWEM.2019.8887913","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887913","url":null,"abstract":"Substrate Integrated Waveguide (SIW) is a low loss transmission line which can be used to connect an antenna to a backed RF circuit in the millimeter wave band. A multi-layer substrate is effective to integrate RF circuits and antennas. Therefore, a transition between a hollow waveguide and a SIW in multi-layer substrate is necessary. However, reflection loss generates at the connections between the hollow waveguide and the SIW in each layer. In this study, a back short and window structures are proposed to use for matching circuit in the transition. Transitions from hollow waveguide to SIWs in multilayer substrate were designed for low loss over wide bandwidth.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"39 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":"134004398","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
Radiation Pattern and Radar Cross Section of a Endfeed Slotted Waveguide Antenna Array 端馈开槽波导天线阵的辐射方向图和雷达截面
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887905
S. M. Chung, S. Tuan
{"title":"Radiation Pattern and Radar Cross Section of a Endfeed Slotted Waveguide Antenna Array","authors":"S. M. Chung, S. Tuan","doi":"10.1109/iWEM.2019.8887905","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887905","url":null,"abstract":"Slotted waveguide antenna is used extensively in legacy pulsed Doppler radar, and is known for high gain, narrow beam width, and high power handling capability. Recently there are proposals to form a phased array with such antenna. Here we investigate the radiation pattern and radar cross section of a phased array composed of end feed slotted waveguide antenna. The antenna is designed for 10 GHz, and 21 of these waveguides are group together to form an array. Simulation shows significantly large RCS of such array at resonant frequency, which may be improved by a well-designed radome.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"35 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":"134006854","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 Miniaturized Coplanar Waveguide-fed Antenna for Implantable Application at ISM Band 一种可植入ISM波段的小型化共面波导馈电天线
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iwem.2019.8887899
Hongfei Li, Ying Zhang, Haining Ren, Jifa Zhang, Hui Wang, Weihua-Zong
{"title":"A Miniaturized Coplanar Waveguide-fed Antenna for Implantable Application at ISM Band","authors":"Hongfei Li, Ying Zhang, Haining Ren, Jifa Zhang, Hui Wang, Weihua-Zong","doi":"10.1109/iwem.2019.8887899","DOIUrl":"https://doi.org/10.1109/iwem.2019.8887899","url":null,"abstract":"This paper propose a novel implantable antenna working at ISM band. The proposed antenna has a small volume of $mathbf{4 mm times 11.9 mm times 0.8 mm}$. The measured −10 dB bandwidth of the proposed antenna is 2.02–2.82GHz.","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":"134024224","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 Substrate Integrated Waveguide Wide-Beamwidth Antenna for 5G Communications 5G通信基板集成波导宽波束宽天线
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887948
Xiaoyuan He, Botao Feng
{"title":"A Substrate Integrated Waveguide Wide-Beamwidth Antenna for 5G Communications","authors":"Xiaoyuan He, Botao Feng","doi":"10.1109/iWEM.2019.8887948","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887948","url":null,"abstract":"A substrate integrated waveguide (SIW) slot antenna with dual wide beamwidths for future 5G applications is proposed. This design is made up of a differentially-driven feeding structure, a SIW cavity and an octagon patch etched with two orthogonal radiating slots. The radiating slots contribute on realizing the desired dual frequency bands in dual-polarized directions for 5G communications. The proposed antenna yields wide beamwidths that are larger than 100°in both E- and H-planes at both frequencies as well as a low profile of $mathbf{0.12}lambda_{c}$.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"46 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":"114289911","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 Dual-Polarized Antenna Using an Origami Structure for 5G Emergency Communications 基于折纸结构的5G应急通信双极化天线
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887890
Can Zhu, Botao Feng
{"title":"A Dual-Polarized Antenna Using an Origami Structure for 5G Emergency Communications","authors":"Can Zhu, Botao Feng","doi":"10.1109/iWEM.2019.8887890","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887890","url":null,"abstract":"A broadband dual-polarized antenna using a low-cost origami structure is presented in this paper. The proposed collapsible magneto-electric (ME) dipole antenna co-operates with defected ground reflector to provide a frequency bandwidth of 65% with high isolation better than 26 dB. Besides, a high gain of $mathbf{9.2pm 1 mathbf{dBi}}$ can also be achieved due to the complementary structure.","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":"114222105","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
Decomposition of Nonstationary Bridge Vibration Signals Using Empirical Wavelet Transform 基于经验小波变换的非平稳桥梁振动信号分解
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887907
Y. Xia
{"title":"Decomposition of Nonstationary Bridge Vibration Signals Using Empirical Wavelet Transform","authors":"Y. Xia","doi":"10.1109/iWEM.2019.8887907","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887907","url":null,"abstract":"In this paper, the empirical wavelet transform (EWT) is used to analyze dynamic responses of bridges. In EWT, the Fourier spectrum of the analyzed signal is segmented adaptively to detect the specific frequencies first. And then, the empirical scaling function and the empirical wavelets are defined based on the automatically identified frequencies. Using this tight frame set of empirical wavelets, wavelet transform is applied to the signal to extract the individual modes. The effectiveness of EWT is validated using the vibration signal of a real bridge. The results are compared with those of two common TF methods, namely, the synchrosqueezed wavelet transform (SWT) and Hilbert-Huang transform (HHT). It is demonstrated that EWT is adaptive and can provide accurate frequency representation of the signal.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"90 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":"124056313","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: 3
Wideband Omnidirectional Filtering Antenna Based On Coupled-line Structure 基于耦合线结构的宽带全向滤波天线
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887922
Junjie Fei, Zhen Chen, Y. Liu, Ju-An Wang, Daotong Li
{"title":"Wideband Omnidirectional Filtering Antenna Based On Coupled-line Structure","authors":"Junjie Fei, Zhen Chen, Y. Liu, Ju-An Wang, Daotong Li","doi":"10.1109/iWEM.2019.8887922","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887922","url":null,"abstract":"A novel omnidirectional filtering antenna with great filtering characteristics is presented. Firstly, a wideband bandpass filter (BPF) with Butterworth functional response based on coupled-line structure is designed and numerically analyzed. Then, a disc type omnidirectional antenna is proposed. When they are integrated together by using co-design approach, the signals from BPF couple to the antenna, thus, the omnidirectional filtering antenna is realized. The proposed antenna can provide a good frequency selectivity and high stopband suppression performance.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"7 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":"124366351","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 Novel Circuit Topology of Forward-Wave Directional Coupler 一种新型正向波定向耦合器电路拓扑
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887918
Xin Yi, Yongrong Shi, X. Qian, Zhengyong Yu
{"title":"A Novel Circuit Topology of Forward-Wave Directional Coupler","authors":"Xin Yi, Yongrong Shi, X. Qian, Zhengyong Yu","doi":"10.1109/iWEM.2019.8887918","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887918","url":null,"abstract":"To achieve a miniaturized forward-wave directional coupler (FWDC) chip based on the integrated passive device (IPD) process, a novel circuit topology is proposed in this paper. The circuit characteristics of the unit cell for even/odd modes are derived using Bloch-Floquet theory. The coupler can be designed with ultra-compact size and increased the phase differences of the even/odd modes. The coupling level can reach 1.5 dB from 9.2 GHz to 13.2 GHz. The fractional bandwidth is 12% and the coupling length is about $mathbf{0.1} pmb{lambda g}$. Due to the IPD process, the coupler in this work can be realized within ultra-compact size.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"109 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":"122701501","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
Application prospect of electromagnetic communication in intelligent pipe gallery 电磁通信在智能管廊中的应用前景
2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2019-09-01 DOI: 10.1109/iWEM.2019.8887934
Han Jinpeng, Z. Yanping, Hu Xiaoyi, Jun-Wei Liu, C. Jianwei
{"title":"Application prospect of electromagnetic communication in intelligent pipe gallery","authors":"Han Jinpeng, Z. Yanping, Hu Xiaoyi, Jun-Wei Liu, C. Jianwei","doi":"10.1109/iWEM.2019.8887934","DOIUrl":"https://doi.org/10.1109/iWEM.2019.8887934","url":null,"abstract":"With the acceleration of urbanization, the underground pipe gallery has gradually changed from traditional management to intelligent management. Real-time monitoring of underground pipe gallery can be realized by making good use of ground penetrating communication technology. In order to provide reference for the research of magnetic induction wisdom pipe gallery, this paper summarizes the common ground penetrating communication technology in China. In addition, the application of the increasingly mature technology of magnetic penetration technology in the field of intelligent pipe gallery is expounded.","PeriodicalId":428997,"journal":{"name":"2019 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"10 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":"115991144","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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