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2021 IEEE MTT-S International Wireless Symposium (IWS)最新文献

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Orbital Angular Momentum Mode-Group Beamforming System Based on An Integrated Optical True Time Delay Line Chip 基于集成光真时延迟线芯片的轨道角动量模群波束形成系统
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499442
Cheng Ren, Bingchen Pan, Yuqi Chen, Zelin Zhu, Xiaowen Xiong, Shilie Zheng, Xianmin Zhang
{"title":"Orbital Angular Momentum Mode-Group Beamforming System Based on An Integrated Optical True Time Delay Line Chip","authors":"Cheng Ren, Bingchen Pan, Yuqi Chen, Zelin Zhu, Xiaowen Xiong, Shilie Zheng, Xianmin Zhang","doi":"10.1109/IWS52775.2021.9499442","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499442","url":null,"abstract":"An orbital angular momentum (OAM) mode-group beamforming system based on an integrated optical true time delay line (OTTDL) chip is presented in this paper. Spatial field digital modulation (SFDM) can be realized by this system. This system operating at 10.2 GHz can achieve no-distortion beam scanning, and three directions (0°, ±90°) are shown in the paper. Besides, the speed of beam scanning is measured as 1.2 kHz.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114952383","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
Efficient Detection of Rare Beacon Events in GEO Satellite Communication Systems using Deep Learning 基于深度学习的地球同步轨道卫星通信系统稀有信标事件有效检测
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499607
Qingyue Chen, Yubo Wang, Arun Yadav, P. Eggers, M. H. Nielsen, Yufeng Zhang, M. Shen
{"title":"Efficient Detection of Rare Beacon Events in GEO Satellite Communication Systems using Deep Learning","authors":"Qingyue Chen, Yubo Wang, Arun Yadav, P. Eggers, M. H. Nielsen, Yufeng Zhang, M. Shen","doi":"10.1109/IWS52775.2021.9499607","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499607","url":null,"abstract":"Geosynchronous satellite (GEO) communications are highly susceptible to interference from environments such as rain, clouds, and hail. This exhibits a technical challenge to accurately detect the status of the weak Q-band (39.4 GHz) satellite beacon signals, which is critical for ensuring reliable satellite pointing using the ground station antenna. This paper exploits recent advances in deep learning to cope with this challenge. The proposed approach based on deep neural networks (DNN) and filtering (Filter-DNN) classifies rare events such as cloud, mist, rain as Non-line of sight (NLOS) and ordinary clear skies as Line of sight (LOS). Beacon data from a GEO satellite (Alphasat) ground station under two different attenuation conditions is used for validation. The experimental results show that our method can detect the rare event with an accuracy score of 92% by using only 2000 data sample points, while conventional approaches such as MUSIC require about 100k sample points to maintain detection. These results indicate that the proposed technique could be a promising tool for achieving satisfactory results in space exploration and gain insights into GEO satellite communication problems.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117145588","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
Iterative Learning Control for Digital Predistortion with Undersampled Feedback Signal 欠采样反馈信号数字预失真的迭代学习控制
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499657
Zhuang Xu, Qiang Zhang, Lei Zhang, Zhiqiang Yu, Chao Yu, Jianfeng Zhai
{"title":"Iterative Learning Control for Digital Predistortion with Undersampled Feedback Signal","authors":"Zhuang Xu, Qiang Zhang, Lei Zhang, Zhiqiang Yu, Chao Yu, Jianfeng Zhai","doi":"10.1109/IWS52775.2021.9499657","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499657","url":null,"abstract":"A novel undersampled feedback signal iterative learning control (US-ILC-DPD) technique is proposed to linearize RF power amplifiers (PAs). The proposed method combines the existing iterative learning control (ILC) with the undersampled processing. It can keep the good linearization performance and avoid using high speed ADCs, which are normally expensive and power costly. In addition, the advantages of ILC-DPD, such as low computational complexity and fast convergence rate, are all preserved in this approach. In linearization, an RFPA is excited by a 20-MHz LTE signal, which is sampled at 100, 25 and 12.5MSPS, respectively. Both the proposed approach and the conventional undersampled-DPD based on direct learning architecture (US-DLA) are validated. The experimental results show that, compared with the conventional US-DLA, the US-ILC-DPD has better robustness and linearization performance when the sampling rate is reduced. Meanwhile, the proposed US-ILC-DPD has much lower computational complexity.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124101339","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
Design of Miniaturized Luzzatto Power Divider with Second and Third Harmonic Suppression Using Open Stubs 利用开路存根抑制二、三次谐波的小型化Luzzatto功率分配器的设计
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499641
Tianjiao Pu, Xuxu Ge, Jie Cui, Haojie Chang
{"title":"Design of Miniaturized Luzzatto Power Divider with Second and Third Harmonic Suppression Using Open Stubs","authors":"Tianjiao Pu, Xuxu Ge, Jie Cui, Haojie Chang","doi":"10.1109/IWS52775.2021.9499641","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499641","url":null,"abstract":"A miniaturized three-way Luzzatto power divider with second and third harmonic suppression is presented in this paper. In this proposed structure, the quarter-wavelength microstrip lines are replaced with T-shaped structures for harmonic suppression and miniaturization, while the half-wavelength microstrip lines are shortened by adding several open stubs. The proposed structure achieves suppression of more than 14.2 dB at second harmonic and 24.4 dB at third harmonic within the 1 dB bandwidth, while the circuit size is reduced to 1/4 compared with conventional Luzzatto divider. Measurement and simulation results are in good agreements under the fundamental frequency of 2.4 GHz.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129689088","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
Reconfigurable Stealth Antenna Based On Electromagnetic Bandgap 基于电磁带隙的可重构隐身天线
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499620
Yanan Yuan, Hua-Bing Wu, Xi-Ming Li, Jian Chen, R. Wu
{"title":"Reconfigurable Stealth Antenna Based On Electromagnetic Bandgap","authors":"Yanan Yuan, Hua-Bing Wu, Xi-Ming Li, Jian Chen, R. Wu","doi":"10.1109/IWS52775.2021.9499620","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499620","url":null,"abstract":"In the current complex electronic countermeasures environment, the antenna greatly restricts the performance of the aircraft. A ferrite reconfigurable stealth antenna based on electromagnetic bandgap structure is designed in this paper. By controlling the intensity or position of the bias magnetic field of the ferrite, the frequency band and pattern of the antenna can be reconstructed, and the radar cross section is reduced. Therefore, the antenna can be used in aircraft to achieve better performance.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129735614","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
Design of Ultra-Wideband (UWB) Microstrip Antenna for RF Energy Harvesting 用于射频能量采集的超宽带(UWB)微带天线设计
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499387
Yawen Zheng, A. Buzdar, Yan Zhang, Tianyang Jia, Dandan Sun, Yecheng Wang
{"title":"Design of Ultra-Wideband (UWB) Microstrip Antenna for RF Energy Harvesting","authors":"Yawen Zheng, A. Buzdar, Yan Zhang, Tianyang Jia, Dandan Sun, Yecheng Wang","doi":"10.1109/IWS52775.2021.9499387","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499387","url":null,"abstract":"The proposed antenna is a multiband and broadband microstrip antenna. The research will focus on incorporating UWB including GSM, UMTS, 4G/5G and ISM bands with more efficient antenna performance. The antenna gain can reach 3.31dB at 4.8GHz and the antenna efficiency is more than 94%. In addition, the 2 × 2 array is studied. To fabricate a complete energy harvesting system, we design a 1–4 Wilkinson power divider, a suitable matching network and a rectification circuit. Finally, an integrated energy harvesting system is fabricated and measured.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127098031","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 Wideband Noise-Cancelling Balun Low Noise Amplifier with Self-Adaptive Calibration for Low Power Application 一种适用于低功耗应用的宽带自适应校正Balun低噪声放大器
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499398
Xiaoming Liu, J. Jin, Jianjun J. Zhou
{"title":"A Wideband Noise-Cancelling Balun Low Noise Amplifier with Self-Adaptive Calibration for Low Power Application","authors":"Xiaoming Liu, J. Jin, Jianjun J. Zhou","doi":"10.1109/IWS52775.2021.9499398","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499398","url":null,"abstract":"A wideband noise-cancelling balun low noise amplifier (LNA) with process, supply voltage and temperature (PVT) calibration for low power application is presented in the paper. The proposed LNA consists of the matching amplifier and the voltage sensing amplifier with feedback resistor to achieve noise cancelling and also offers differential outputs. To stabilize DC-operation point and avoid output imbalance of the proposed LNA, a DC tracking loop is utilized by adjusting the supply voltage of the LNA. The proposed LNA is implemented in a 40 nm CMOS process, and occupies 0.101 mm2 chip area. Measurement results show that it achieves maximum voltage gain of 23.2 dB, minimum NF of 5.9 dB, input referred third-order intercept point (IIP3) higher than −6 dBm, and can operate from 1.7 GHz to 5.7 GHz with input return loss of less than −8 dB, while it draws 1.9 mA from 1.1 V voltage supply.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127265592","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
Towards the Exploratory In-Orbit Verification of an E/W-Band Satellite Communication Link E/ w波段卫星通信链路在轨探索性验证研究
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499586
I. Kallfass, L. Manoliu, B. Schoch, M. Koller, S. Klinkner, J. Freese, A. Tessmann, R. Henneberger
{"title":"Towards the Exploratory In-Orbit Verification of an E/W-Band Satellite Communication Link","authors":"I. Kallfass, L. Manoliu, B. Schoch, M. Koller, S. Klinkner, J. Freese, A. Tessmann, R. Henneberger","doi":"10.1109/IWS52775.2021.9499586","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499586","url":null,"abstract":"This contribution details the motivation and the status of a new satellite mission, which targets the in-orbit verification of a wideband satellite communication link operating in the high millimeter-wave regime at 71–76 GHz. The paper reviews the dynamic link budgets for data links between satellites in low-earth orbits and ground stations on close to sea level, taking into account the expected atmospheric attenuation according to lTU models and supported by successful terrestrial transmission experiments, which confirm the feasibility and attractiveness of exploiting allocated spectrum in E-band for Gigabit satellite feeder links of globe-spanning satellite constellations and high capacity data downlinks in earth observation, even under adverse weather conditions. The scientific payload, hosted by a 6V-Cubsat platform, comprises a high-performance E-band transmitter with GaN-based solid state power amplifiers, an InGaAs-based low-noise receiver and a modern FPGA-based digital processing unit realizing AWG functionality and 4k image/video storage. The ground terminal employs a highly directive Cassegrain antenna with coarse GPS and fine RF tracking and a low-noise receiver.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132008799","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
Design of Wideband Vortex Reflectarray Based on Pancharatnam-Berry Metasurface 基于Pancharatnam-Berry超表面的宽带涡旋反射天线设计
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499601
Xiaobin Guo, Xiuping Li, Yuhan Huang, Kai Luo, Hua Zhu, Zaid Akram, Zihang Qi
{"title":"Design of Wideband Vortex Reflectarray Based on Pancharatnam-Berry Metasurface","authors":"Xiaobin Guo, Xiuping Li, Yuhan Huang, Kai Luo, Hua Zhu, Zaid Akram, Zihang Qi","doi":"10.1109/IWS52775.2021.9499601","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499601","url":null,"abstract":"In this paper, a design of a wideband vortex reflec-tarray based on Pancharatnam-Berry (PB) metasurface is proposed, which consists of 20×20 elements. The patch is composed of an I-ring inlaid with an opening ring and is printed on the surface of the substrate. The other side of the substrate consist of a foam layer and a metal ground. A 360° reflection phase is achieved under the circularly polarized (CP) incidence. The simulation results show that the vortex beam carrying $l=+2$ orbital angular momentum (OAM) mode is successfully generated from 20-40 GHz, with an OAM bandwidth of 66.6%.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132058151","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
Single-Layer Electrically Small Antenna With Reconfigurable Radiation Pattern 具有可重构辐射方向图的单层电小型天线
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499687
Hui-fen Huang, Hong-long Bu
{"title":"Single-Layer Electrically Small Antenna With Reconfigurable Radiation Pattern","authors":"Hui-fen Huang, Hong-long Bu","doi":"10.1109/IWS52775.2021.9499687","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499687","url":null,"abstract":"A single-layer, ultra-low-profile, electrically small, pattern-reconfigurable antenna is presented. The antenna consists of electric and magnetic dipole elements and a reconfigurable driven element. Six p-i-n diodes are integrated into the driven element to obtain three switchable endfire radiation states, each state covers more than 120°, which covers the entire 360° azimuth plane. For verification, a pattern reconfigurable antenna was fabricated and tested. The antenna exhibits the following measured results: $k_{a}= 0.75$ electrical size, 2.9% fractional impedance bandwidth, 4.17dBi peak gain, front-to-back ratios (FTRB) ~21.2dB, and radiation efficiencies (RE) ~82.6% for three switchable endfire radiation states.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129256783","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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