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2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)最新文献

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A 25Gbps Differential Low Noise TIA with 10.9 pA/√Hz in 45RFSOI 一个25Gbps差分低噪声TIA, 10.9 pA/√Hz, 45RFSOI
2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2021-11-28 DOI: 10.1109/iwem53379.2021.9790575
Jinfeng Xie, Juncheng Deng, A. Wahba, F. Lin
{"title":"A 25Gbps Differential Low Noise TIA with 10.9 pA/√Hz in 45RFSOI","authors":"Jinfeng Xie, Juncheng Deng, A. Wahba, F. Lin","doi":"10.1109/iwem53379.2021.9790575","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790575","url":null,"abstract":"A 25Gbps single-ended to differential (S2D) low noise transimpedance amplifier (TIA) in 45RFSOI is presented. A ac-coupling capacitor and a capacitor cross-coupled pair are used to achieve S2D differential output. To optimize both noise and bandwidth, a high-gain low-bandwidth input stage followed by a continuous-time linear equalizer (CTLE) is adopted, where the CTLE uses inductive peaking and negative capacitance to achieve a bandwidth extension ratio (BWER) of 3.9 with less than 0.5dB peaking. Post simulation results show that the designed TIA achieves 63.3 dB transimpedance gain, and 22.6-GHz overall bandwidth while the photodiode capacitance is accounted for 70fF. The input average noise current spectral density is 10.9 pA/ √Hz, and the power consumption is 38mW with 1.3V supply.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124189037","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
Backward to Forward Scanning Periodic Leaky-Wave Antenna with Eliminated Reflected Side Lobe 消除反射旁瓣的前向扫描周期漏波天线
2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2021-11-28 DOI: 10.1109/iwem53379.2021.9790467
Kexin Mao, Yuanxin Li, Zhixi Liang, Shao Yong Zheng, Y. Long
{"title":"Backward to Forward Scanning Periodic Leaky-Wave Antenna with Eliminated Reflected Side Lobe","authors":"Kexin Mao, Yuanxin Li, Zhixi Liang, Shao Yong Zheng, Y. Long","doi":"10.1109/iwem53379.2021.9790467","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790467","url":null,"abstract":"A backward-to-forward continuous beam scanning periodic leaky wave antenna (PLWA) with eliminated reflected side lobe is presented in this paper. The proposed antenna consists of ten nonuniform unit cells (UCs) periodically cascaded along the direction of propagation. By optimizing the geometry of the UCs which are composed of orthogonally bending transmission lines, the reflected side lobe suppression is achieved without changing the original scanning property. A prototype of the antenna is simulated, fabricated and measured. The measured results show that the main beam scans from backward quadrant (i.e., -47°) to forward quadrant (i.e., +55°) through broadside with eliminated open stopband (OSB). The proposed antenna features a low reflected side lobe level within the operating band of 3.7-6.5 GHz, and achieves a maximum reduction of 7.1 dB at 6.5 GHz compared to the uniform PLWA.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126490216","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
Wideband Cavity-Backed Slot Antenna Based on Multi-Resonant Modes 基于多谐振模式的宽带腔背槽天线
2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2021-11-28 DOI: 10.1109/iwem53379.2021.9790631
Xuexue Qin, Nengwu Liu, Jin Chen
{"title":"Wideband Cavity-Backed Slot Antenna Based on Multi-Resonant Modes","authors":"Xuexue Qin, Nengwu Liu, Jin Chen","doi":"10.1109/iwem53379.2021.9790631","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790631","url":null,"abstract":"In this paper, a cavity-backed slot antenna (CBSA) with broadband performance is proposed. The design is constructed by three resonators, which consists of two resonances from the stepped slot and one resonance from the cavity. As a result, all of these modes are triggered to move towards similar frequency range each other and simultaneously excited in the single cavity resonator. As such, the impedance bandwidth could be enhanced by utilizing the impedance matching of three modes in proper frequency range. Finally, compared with the traditional single resonant CBSA, the bandwidth (|S11|<-10dB) of the proposed multimode CBSA is enhanced transform 1.4% into 12%. Furthermore, the antenna composed of all metal structure still retains the merits of zero dielectric loss performance.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126230103","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 double helix coaxial pulse compression structure 一种双螺旋同轴脉冲压缩结构
2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2021-11-28 DOI: 10.1109/iwem53379.2021.9790530
Hen Zhou, Tingyong Jiang, Zhen Liu, Jinhao Zhang, Shoulong Zhang, Xiaojia Wang, Changlin Han
{"title":"A double helix coaxial pulse compression structure","authors":"Hen Zhou, Tingyong Jiang, Zhen Liu, Jinhao Zhang, Shoulong Zhang, Xiaojia Wang, Changlin Han","doi":"10.1109/iwem53379.2021.9790530","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790530","url":null,"abstract":"Based on simultaneous interpreting of double coaxial structures, the middle cylinder is designed as a helical structure in order to achieve longer output pulse under the same transmission line length. The full wave simulation shows that the pulse width can be effectively increased by increasing the number of middle cylinder spirals, but too many middle cylinder spirals will lead to the deterioration of waveform flat top. Based on the reasonable selection of the spiral number of the middle cylinder, the waveform shaping can be realized by further adjusting the spiral number of the inner cylinder.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126528575","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
Compact Rectifier Extended Frequency and Power Ranges Based on Lange Coupler 基于兰格耦合器的紧凑型整流器扩展了频率和功率范围
2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2021-11-28 DOI: 10.1109/iwem53379.2021.9790615
Shaofei Bo, Jun-hui Ou, Xiu Yin Zhang
{"title":"Compact Rectifier Extended Frequency and Power Ranges Based on Lange Coupler","authors":"Shaofei Bo, Jun-hui Ou, Xiu Yin Zhang","doi":"10.1109/iwem53379.2021.9790615","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790615","url":null,"abstract":"A compact rectifier with extended ranges of frequency and power is presented. By the adoption of a grounded Lange coupler and wideband impedance matching network, the proposed rectifier achieves high efficiency at wide ranges of frequency and power. Mechanism of the rectifier is studied and the experimental verification is carried out. Measured results exhibit that, within the frequency range of 1.0 – 2.7 GHz and power range of 5.2 – 23.0 dBm, the rectifying efficiency maintains over 70% of its maximum values. The size of the rectifier is 0.28 × 0.16 $lambda _c^2$.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"74 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128038575","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
Millimeter Wave Wideband Bandpass Filters Based on LCP Self-packaged Multi-layer Suspended Line 基于LCP自封装多层悬浮线的毫米波宽带带通滤波器
2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2021-11-28 DOI: 10.1109/iwem53379.2021.9790406
J. Xiao, Meng-Yang Yang, Xiao-Bo Zhang, Yi Miao
{"title":"Millimeter Wave Wideband Bandpass Filters Based on LCP Self-packaged Multi-layer Suspended Line","authors":"J. Xiao, Meng-Yang Yang, Xiao-Bo Zhang, Yi Miao","doi":"10.1109/iwem53379.2021.9790406","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790406","url":null,"abstract":"In this report, a self-packaged millimeter-wave reflectionless bandpass filter based on LCP multilayer suspended microstrip structure is proposed, and a bandpass part combining bandstop part is used to realize the nonreflection characteristic. The reflectionless bandpass filter has a center frequency of 36.3GHz, an insertion loss of 0.94dB, and a return loss with attenuation of more than 12dB in the frequency band of 5GHz-70GHz. In addition, a self-packaged wideband millimeter wave bandpass filter based on LCP multilayer suspended coplanar waveguide (CPW) and dielectric resonator is also proposed, which centers at 49.4GHz with a relative bandwidth of 35.9%, and an insertion loss of 1.4dB.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"37 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125733667","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 Broadband Dual-Polarized Multi-Resonance Antenna for Base Station Applications 用于基站的宽带双极化多共振天线
2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2021-11-28 DOI: 10.1109/iWEM53379.2021.9790673
Xujie Zhang, X. Guan, Baoping Ren, Shaopeng Wan, Mengrou Xu
{"title":"A Broadband Dual-Polarized Multi-Resonance Antenna for Base Station Applications","authors":"Xujie Zhang, X. Guan, Baoping Ren, Shaopeng Wan, Mengrou Xu","doi":"10.1109/iWEM53379.2021.9790673","DOIUrl":"https://doi.org/10.1109/iWEM53379.2021.9790673","url":null,"abstract":"A broadband dual-polarized multi-resonance antenna is designed in this paper. The antenna is composed of the main radiator, integrated baluns, and reflector. Different from the traditional balun-fed dual-polarized antenna, an additional resonant mode is produced by etching slot on the ground of the integrated balun. The bandwidth of the antenna is effectively expanded without increasing the antenna size or changing the shape of the dipole. The antenna is well invented and simulated. The simulated results confirm that the antenna has a very wide impedance bandwidth (1.64-3.39 GHz) of about 70% with VSWR less than 1.7, and the isolation between the two ports is greater than 25 dB. In addition, the proposed antenna has a stable gain within 8.7±1.5 dBi and the half-power beamwidth within 60°±8° in the operating band.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134124836","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 Broadband Coplanar Waveguide Grid Array Antenna 宽带共面波导网格阵列天线
2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2021-11-28 DOI: 10.1109/iwem53379.2021.9790683
Zhengwei You, Guanxiang Xu, Haoran Zhu, Zhixiang Huang, Bo Xu
{"title":"A Broadband Coplanar Waveguide Grid Array Antenna","authors":"Zhengwei You, Guanxiang Xu, Haoran Zhu, Zhixiang Huang, Bo Xu","doi":"10.1109/iwem53379.2021.9790683","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790683","url":null,"abstract":"In this paper, a broadband coplanar waveguide grid array antenna is presented. By using coplanar waveguide, the antenna array can achieve a wider impedance bandwidth is 29% (21.69 - 29.04 GHz). The coplanar waveguide-based antenna has a higher front-back ratio than the convention microstrip grid antenna. The differential probe feed is applied to get a lower cross-polarization level of about -40 dB. The coplanar waveguide-based antenna has the maximum gain value of 12.6 dBi. Due to these advantages of low cross polarization, wide impedance bandwidth, high gain and high front-back ratio, the coplanar waveguide-based antenna can be applied in the 5G millimeter wave communications.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130954042","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
Development of A Multi-Band Shared-Aperture Antenna Array 一种多波段共享孔径天线阵列的研制
2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2021-11-28 DOI: 10.1109/iwem53379.2021.9790404
Xiaochi Lu, Yikai Chen, Shaojun Guo, Tongsheng Shen, Zhanpeng Guo
{"title":"Development of A Multi-Band Shared-Aperture Antenna Array","authors":"Xiaochi Lu, Yikai Chen, Shaojun Guo, Tongsheng Shen, Zhanpeng Guo","doi":"10.1109/iwem53379.2021.9790404","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790404","url":null,"abstract":"In multi-band shared-aperture antennas for base station, the cross-band couplings have severe influences on the performance of higher-band antennas. In this work, those influences are attributed to the secondary radiation field problem. For solving this problem, an L-band (0.76 - 0.88 GHz) antenna with electromagnetic-transparent characteristics is designed. This L-band antenna has M-band (1.9 - 2.7 GHz) and H-band (3.3 - 3.9 GHz) electromagnetic-transparent characteristics. Furthermore, an L/M dual-band array and an L/H dual-band array are designed for proving electromagnetic-transparent characteristics. The simulated results validate the applicability of this proposed antenna for massive MIMO base station antenna developments.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133013378","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
Research Progress of Near Field Communication and Wireless Charging Antennas for Smartphone 智能手机近场通信与无线充电天线研究进展
2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM) Pub Date : 2021-11-28 DOI: 10.1109/iwem53379.2021.9790587
Jia-Qi Zhu, Y. Ban
{"title":"Research Progress of Near Field Communication and Wireless Charging Antennas for Smartphone","authors":"Jia-Qi Zhu, Y. Ban","doi":"10.1109/iwem53379.2021.9790587","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790587","url":null,"abstract":"The research progress of our team regarding near field communication (NFC) and wireless power transfer (WPT) for mobile terminals are introduced in this paper. To realize NFC for metal cover smartphones, four antennas are illustrated. To achieve WPT through metal cover, two couplers are depicted. In order to save space and cost, two integrated NFC-WPT couplers are investigated for metal cover smartphones.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114822666","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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