Pub Date : 2024-09-18DOI: 10.1109/tmtt.2024.3449277
Minas Kouroublakis, Nikolaos L. Tsitsas, George Fikioris, Grigorios P. Zouros
{"title":"A Null Field Method-Surface Equivalence Principle Approach for Mode Analysis of Dielectric Waveguides","authors":"Minas Kouroublakis, Nikolaos L. Tsitsas, George Fikioris, Grigorios P. Zouros","doi":"10.1109/tmtt.2024.3449277","DOIUrl":"https://doi.org/10.1109/tmtt.2024.3449277","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"25 10 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-18DOI: 10.1109/tmtt.2024.3457163
Shixin Long, Hao Ding, Xinglin Qin, Boqiu Yuan, Qihui Zhou, Song Zha, Mingtuan Lin
{"title":"A Wideband LFMCW Radar Jamming System Based on Microwave Photonic Link","authors":"Shixin Long, Hao Ding, Xinglin Qin, Boqiu Yuan, Qihui Zhou, Song Zha, Mingtuan Lin","doi":"10.1109/tmtt.2024.3457163","DOIUrl":"https://doi.org/10.1109/tmtt.2024.3457163","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"33 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-17DOI: 10.1109/tmtt.2024.3454287
Kacper Skrobacz, Patryk Pyt, Piotr Jankowski-Mihułowicz, Mariusz Węglarski
{"title":"A New Concept of Determining the RFID Chip Impedance","authors":"Kacper Skrobacz, Patryk Pyt, Piotr Jankowski-Mihułowicz, Mariusz Węglarski","doi":"10.1109/tmtt.2024.3454287","DOIUrl":"https://doi.org/10.1109/tmtt.2024.3454287","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"50 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-17DOI: 10.1109/TMTT.2024.3454464
Ashkan Azarfar;Nicolas Barbot;Etienne Perret
This article presents a real-time identification process for slow motion-modulated chipless radio frequency identification (RFID), which can be applied to human hand gestures to realize a full-practical long-range RFID system with gesture recognition capability. Depolarizing chipless tags configured by hand in three gestures are utilized, while different motion-induced modulation effects involved in each gesture are analytically modeled. The identification based on differential radar cross-section (RCS) and gesture recognition using deterministic in-phase/quadrature (IQ) trajectories is addressed according to the developed model. The fast reading process for slow motion-modulated chipless RFID is proposed based on the sequential fast frequency sweep acquisitions by vector network analyzer (VNA), while the sweep time is very short compared to the period of motion. The identification time achieved using this approach is about only a few periods of motion, which is ideal for implementing hand gesture-modulated chipless RFID in real time. The designed gesture-modulated chipless tag is identified during a few seconds at distances up to 3 m for the most efficient gesture. Moreover, all the hand gestures are recognized at the 2-m range based on the received IQ signature. These achievements realize the practical example of motion-modulated chipless RFID where both tag identification and gesture recognition are simultaneously provided.
{"title":"Real-Time Hand Motion-Modulated Chipless RFID With Gesture Recognition Capability","authors":"Ashkan Azarfar;Nicolas Barbot;Etienne Perret","doi":"10.1109/TMTT.2024.3454464","DOIUrl":"10.1109/TMTT.2024.3454464","url":null,"abstract":"This article presents a real-time identification process for slow motion-modulated chipless radio frequency identification (RFID), which can be applied to human hand gestures to realize a full-practical long-range RFID system with gesture recognition capability. Depolarizing chipless tags configured by hand in three gestures are utilized, while different motion-induced modulation effects involved in each gesture are analytically modeled. The identification based on differential radar cross-section (RCS) and gesture recognition using deterministic in-phase/quadrature (IQ) trajectories is addressed according to the developed model. The fast reading process for slow motion-modulated chipless RFID is proposed based on the sequential fast frequency sweep acquisitions by vector network analyzer (VNA), while the sweep time is very short compared to the period of motion. The identification time achieved using this approach is about only a few periods of motion, which is ideal for implementing hand gesture-modulated chipless RFID in real time. The designed gesture-modulated chipless tag is identified during a few seconds at distances up to 3 m for the most efficient gesture. Moreover, all the hand gestures are recognized at the 2-m range based on the received IQ signature. These achievements realize the practical example of motion-modulated chipless RFID where both tag identification and gesture recognition are simultaneously provided.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 1","pages":"383-396"},"PeriodicalIF":4.1,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-17DOI: 10.1109/tmtt.2024.3455556
Zekai Luo, Tao Su, Kai-Da Xu
{"title":"Graphene-Based Absorptive Gasket for Chip Packages With Enhanced Radiation-Suppression and Heat-Dissipation Capabilities","authors":"Zekai Luo, Tao Su, Kai-Da Xu","doi":"10.1109/tmtt.2024.3455556","DOIUrl":"https://doi.org/10.1109/tmtt.2024.3455556","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"230 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-13DOI: 10.1109/tmtt.2024.3452313
Lei Liu, Lei Zhu, Zheng-Bin Wang, Ye-Rong Zhang
{"title":"Proposal and Synthesis of Self-Packaged Wideband Bandpass Power Divider With Constant Power Ratio and Full Phase Difference Range","authors":"Lei Liu, Lei Zhu, Zheng-Bin Wang, Ye-Rong Zhang","doi":"10.1109/tmtt.2024.3452313","DOIUrl":"https://doi.org/10.1109/tmtt.2024.3452313","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"31 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-13DOI: 10.1109/tmtt.2024.3452946
Yan Zhang, Bin Xia, Junfa Mao
{"title":"A Design Approach for Asymmetric Coupled Line Fixed Attenuators and Their Application in Microwave Power Detecting Circuits","authors":"Yan Zhang, Bin Xia, Junfa Mao","doi":"10.1109/tmtt.2024.3452946","DOIUrl":"https://doi.org/10.1109/tmtt.2024.3452946","url":null,"abstract":"","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"7 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aiming at supporting diverse applications, integrated communication, sensing, and power transfer (ICSPT) is anticipated to be a key feature of 6G networks. In ICSPT scenarios, power amplifiers (PAs) suffer from dynamic effects due to rapid switching between different operating modes, posing new challenges for PA linearization. In this article, a novel digital predistortion (DPD) method is proposed to effectively compensate for PA distortion in such scenarios. To accurately characterize these dynamic effects with low complexity, we introduce a method for calculating dynamic state variables that represent the dynamic behavior of PAs. For communication mode, these variables are incorporated into a neural network (NN) model, leveraging NN’s powerful fitting capability to track changes in PA’s nonlinear characteristics due to mode switching. For sensing and power transfer modes, the variables are used to fine-tune the input signal, compensating for fluctuations in PA’s gain. Experimental validations were conducted on a millimeter-wave (mmWave) gallium nitride (GaN) PA at a center frequency of 27 GHz. The PA was excited by 40/200-MHz NR signals for communication mode, 100/500-MHz frequency-modulated continuous-wave (FMCW) signals for sensing mode, and a CW signal for power transfer mode. The test demonstrates that the proposed method significantly improves transmission performance while maintaining similar complexity.
{"title":"Digital Predistortion of Millimeter-Wave GaN Power Amplifiers for 6G Integrated Communication, Sensing, and Power Transfer Scenarios","authors":"Yucheng Yu;Luqi Yu;Ruijia Liu;Xiao-Wei Zhu;Peng Chen;Chao Yu","doi":"10.1109/TMTT.2024.3452555","DOIUrl":"10.1109/TMTT.2024.3452555","url":null,"abstract":"Aiming at supporting diverse applications, integrated communication, sensing, and power transfer (ICSPT) is anticipated to be a key feature of 6G networks. In ICSPT scenarios, power amplifiers (PAs) suffer from dynamic effects due to rapid switching between different operating modes, posing new challenges for PA linearization. In this article, a novel digital predistortion (DPD) method is proposed to effectively compensate for PA distortion in such scenarios. To accurately characterize these dynamic effects with low complexity, we introduce a method for calculating dynamic state variables that represent the dynamic behavior of PAs. For communication mode, these variables are incorporated into a neural network (NN) model, leveraging NN’s powerful fitting capability to track changes in PA’s nonlinear characteristics due to mode switching. For sensing and power transfer modes, the variables are used to fine-tune the input signal, compensating for fluctuations in PA’s gain. Experimental validations were conducted on a millimeter-wave (mmWave) gallium nitride (GaN) PA at a center frequency of 27 GHz. The PA was excited by 40/200-MHz NR signals for communication mode, 100/500-MHz frequency-modulated continuous-wave (FMCW) signals for sensing mode, and a CW signal for power transfer mode. The test demonstrates that the proposed method significantly improves transmission performance while maintaining similar complexity.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 1","pages":"26-37"},"PeriodicalIF":4.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：