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Period Doubling and Subharmonic Generation in PIN Diode Control Circuits PIN二极管控制电路的倍周期和次谐波的产生
2022 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2022-01-16 DOI: 10.1109/RWS53089.2022.9719925
R. Caverly
{"title":"Period Doubling and Subharmonic Generation in PIN Diode Control Circuits","authors":"R. Caverly","doi":"10.1109/RWS53089.2022.9719925","DOIUrl":"https://doi.org/10.1109/RWS53089.2022.9719925","url":null,"abstract":"This paper describes work done in sub-harmonic signal generation through period doubling in a PIN diode switch circuit. The work compares simulations using a SPICE PIN diode model of period doubling with measurements in the high frequency range and shows good agreement between the measurements and simulations. Of note is the observation that the peak sub-harmonic signal is approximately 15 dBc the fundamental over an octave change in frequency.","PeriodicalId":113074,"journal":{"name":"2022 IEEE Radio and Wireless Symposium (RWS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122212373","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
Calibrated and Frequency Traceable D-Band FMCW Radar for VNA-like S-Parameter Measurements 用于类vna s参数测量的校准和频率可跟踪的d波段FMCW雷达
2022 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2022-01-16 DOI: 10.1109/rws53089.2022.9719876
T. Jaeschke, S. Kueppers, N. Pohl, J. Barowski
{"title":"Calibrated and Frequency Traceable D-Band FMCW Radar for VNA-like S-Parameter Measurements","authors":"T. Jaeschke, S. Kueppers, N. Pohl, J. Barowski","doi":"10.1109/rws53089.2022.9719876","DOIUrl":"https://doi.org/10.1109/rws53089.2022.9719876","url":null,"abstract":"In this paper a D-band frequency modulated continuous wave (FMCW) radar system and a signal processing chain for vector network analyzer(VNA)-like S-parameter measurements are presented. The radar sensor covers an ultra-wide 56GHz (126GHz–182GHz, 36.4%) sweep bandwidth and can be equipped with a standard WM-1651 [1] (WR-6.5) waveguide flange. To achieve measurement-grade phase stability a cascaded multi-phase-locked-loop (PLL) frequency traceable reference clock concept is introduced and system stability measurements are presented. Finally, a FMCW radar calibration concept is provided to allow complex (magnitude and phase) S-parameter measurements with cost-effective wide-band FMCW radar sensors. To demonstrate the achieved system performance and the potential of this approach, material characterization measurements are presented and compared to conventional VNA measurement equipment with waveguide extenders.","PeriodicalId":113074,"journal":{"name":"2022 IEEE Radio and Wireless Symposium (RWS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126692040","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: 12
Driver’s heartbeat interval estimation with millimeter-wave sensor 基于毫米波传感器的驾驶员心跳间隔估计
2022 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2022-01-16 DOI: 10.1109/RWS53089.2022.9719889
Ryohei Fukuhara, A. Kajiwara
{"title":"Driver’s heartbeat interval estimation with millimeter-wave sensor","authors":"Ryohei Fukuhara, A. Kajiwara","doi":"10.1109/RWS53089.2022.9719889","DOIUrl":"https://doi.org/10.1109/RWS53089.2022.9719889","url":null,"abstract":"This paper presents a millimeter-wave (MMW) radar based vital-signs sensor to estimate driver’s heartbeat interval (HBI) in contact-free for comfort. The HBI is here estimated from driver’s chest surface movement using the received MMW echo. The MMW sensor is sensitive to small cardiac movement of 1mm or less because of the higher frequency and wider bandwidth available, thereby the movement would be estimated even while driving an automobile. The received MMW echo contains not only the chest surface movement, but also driver’s body movement, automotive body vibration and multipath fading. Therefore, the HBI would be extracted from the received chest surface movement data using a range-bin diversity, multi-resolution analysis, and Burg algorithm-based spectrum analysis. This paper discusses the effect of driver’s operating condition and sensor installation location on the HBI. Measurement was conducted while driving an automobile and the result is also compared with a PPG (photo-plethysmograph) sensor to verify the validity. As a result, it is found that the estimated HBI is in good agreement with the PPG.","PeriodicalId":113074,"journal":{"name":"2022 IEEE Radio and Wireless Symposium (RWS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125342781","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
Noncontact Respiration Detection of Multiple Closely Positioned Subjects with Difference Beamforming 基于差分波束形成的多受试者非接触呼吸检测
2022 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2022-01-16 DOI: 10.1109/RWS53089.2022.9719904
Junjun Xiong, Hong Hong, Jianling Sun, Xiaohua Zhu
{"title":"Noncontact Respiration Detection of Multiple Closely Positioned Subjects with Difference Beamforming","authors":"Junjun Xiong, Hong Hong, Jianling Sun, Xiaohua Zhu","doi":"10.1109/RWS53089.2022.9719904","DOIUrl":"https://doi.org/10.1109/RWS53089.2022.9719904","url":null,"abstract":"Digital beamforming (DBF) can be described as the weighted summation of the data received by each antenna unit. It is essentially a spatial filter that has been widely used in multi-target respiration detection. However, this solution is limited to angular resolution. In this paper, a difference beamforming has been proposed to separate the respiration of multiple closely positioned subjects without being constrained by angular resolution. The experimental result shows the superior performance of the proposed algorithm.","PeriodicalId":113074,"journal":{"name":"2022 IEEE Radio and Wireless Symposium (RWS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122614757","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
Silicon Integrated Broadband Dual Frequency Comb-based Microwave Detector for Material Characterization 基于硅集成宽带双频梳的材料表征微波探测器
2022 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2022-01-16 DOI: 10.1109/RWS53089.2022.9719944
Elif Kaya, K. Entesari
{"title":"Silicon Integrated Broadband Dual Frequency Comb-based Microwave Detector for Material Characterization","authors":"Elif Kaya, K. Entesari","doi":"10.1109/RWS53089.2022.9719944","DOIUrl":"https://doi.org/10.1109/RWS53089.2022.9719944","url":null,"abstract":"This article presents a miniaturized CMOS integrated microwave detector based on dual frequency-comb for broadband sensing spectroscopy. The LO-free detector chip generates two frequency combs with a tunable spacing, and includes Gaussian second derivative pulse generator, two on-chip slotted slow-wave coplanar waveguide (S-CPW) planar transmission line sensor units, and a broadband heterodyne mixer to generate the output mapped from microwave frequencies to low frequencies which represents the properties of the material under test (MUT). The proposed microwave detector fabricated in TSMC 65 nm CMOS and consumes ~58 mW from a 1 V supply.","PeriodicalId":113074,"journal":{"name":"2022 IEEE Radio and Wireless Symposium (RWS)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116884912","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
Broadband Conductor Backed-CPW to Substrate Integrated Slab Waveguide Transition for Ku-Band ku波段宽带导体背波波导到基片集成平板波导的转换
2022 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2022-01-16 DOI: 10.1109/RWS53089.2022.9719913
Anil Kumar Nayak, I. Filanovsky, K. Moez, A. Patnaik
{"title":"Broadband Conductor Backed-CPW to Substrate Integrated Slab Waveguide Transition for Ku-Band","authors":"Anil Kumar Nayak, I. Filanovsky, K. Moez, A. Patnaik","doi":"10.1109/RWS53089.2022.9719913","DOIUrl":"https://doi.org/10.1109/RWS53089.2022.9719913","url":null,"abstract":"The paper considers the transition from conductor backed coplanar waveguide (CB-CPW) to substrate integrated slab waveguide (SISW). The SISW concept is described, it improves the single-mode impedance bandwidth, reduces insertion loss, and the overall loss of the transition. Design example is presented for 12-18 GHz frequency range. The parameters of the transition laboratory prototype are measured to validate the claims.","PeriodicalId":113074,"journal":{"name":"2022 IEEE Radio and Wireless Symposium (RWS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133784001","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
High-Resolution Direction-of-Arrival Estimation using Distributed Radar Sensors 基于分布式雷达传感器的高分辨率到达方向估计
2022 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2022-01-16 DOI: 10.1109/RWS53089.2022.9719971
Jonas Fuchs, Alexander Kasper, Maximilian Lübke, Anand Dubey, F. Lurz
{"title":"High-Resolution Direction-of-Arrival Estimation using Distributed Radar Sensors","authors":"Jonas Fuchs, Alexander Kasper, Maximilian Lübke, Anand Dubey, F. Lurz","doi":"10.1109/RWS53089.2022.9719971","DOIUrl":"https://doi.org/10.1109/RWS53089.2022.9719971","url":null,"abstract":"We present an approach to high-resolution direction-of-arrival estimation for distributed radar sensors without the need for synchronization or wired connections. The sensor signals are post-processed and combined after range-Doppler processing achieving a larger virtual aperture and multiple snapshots. The proposed approach is validated via simulations and the effectiveness is compared to other baseline estimators with respect to estimation accuracy and resolution performance. Finally, the applicability on real data is demonstrated using a simple measurement setup in an anechoic chamber.","PeriodicalId":113074,"journal":{"name":"2022 IEEE Radio and Wireless Symposium (RWS)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132186032","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
Two-Layered Microstrip Diplexer Based on High-Selectivity Wideband Bandpass Filters 基于高选择性宽带带通滤波器的双层微带双工器
2022 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2022-01-16 DOI: 10.1109/rws53089.2022.9719902
Li Yang, R. Gómez‐García
{"title":"Two-Layered Microstrip Diplexer Based on High-Selectivity Wideband Bandpass Filters","authors":"Li Yang, R. Gómez‐García","doi":"10.1109/rws53089.2022.9719902","DOIUrl":"https://doi.org/10.1109/rws53089.2022.9719902","url":null,"abstract":"This paper presents a microstrip diplexer based on two high-selectivity wideband bandpass filters (BPFs) in a two-layered structure. Both the lower and upper channels are designed with third-order microstrip-to-microstrip vertical transitions using open-circuit-ended slotline stepped-impedance resonators (SIRs). Specifically, open-circuit-ended microstrip lines on the top and bottom layers for the lower channel are employed, whereas the upper channel is equipped with short-circuit-ended ones. Thus, owing to the slotline SIRs, two close-to-passband transmission zeros (TZs) leading to sharp-rejection capabilities for both BPF channels are attained. The theoretical foundations and RF operating principles of the devised diplexer are discussed in detail. For practical-validation purposes, a two-layered microstrip wideband diplexer prototype is designed, simulated, and tested. It features two three-pole high-selectivity filtering responses for the measured lower and upper channels that are centered at 1.52 GHz and 2.76 GHz, and exhibit 3-dB fractional bandwidths of 60% and 24.93%, respectively.","PeriodicalId":113074,"journal":{"name":"2022 IEEE Radio and Wireless Symposium (RWS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133759345","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
System Capacity Analysis of Asynchronous FBMC and OFDM Systems in the Presence of Adjacent Channel Interference and Multipath Fading 存在相邻信道干扰和多径衰落时异步FBMC和OFDM系统容量分析
2022 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2022-01-16 DOI: 10.1109/RWS53089.2022.9719951
Hiroto Yamada, Hirofumi Suganuma, F. Maehara
{"title":"System Capacity Analysis of Asynchronous FBMC and OFDM Systems in the Presence of Adjacent Channel Interference and Multipath Fading","authors":"Hiroto Yamada, Hirofumi Suganuma, F. Maehara","doi":"10.1109/RWS53089.2022.9719951","DOIUrl":"https://doi.org/10.1109/RWS53089.2022.9719951","url":null,"abstract":"This paper compares the performances of filter bank multicarrier (FBMC) and orthogonal frequency division multiplexing (OFDM) under multipath fading channels, in terms of their theoretical system capacities. OFDM generates high levels of out-of-band (OOB) radiation while being resistant to inter-symbol interference (ISI). In contrast, the effect of subcarrier-wise filtering in FBMC inhibits the generation of OOB radiation, which also reduces its adjacent channel interference (ACI). However, it suffers from ISI and inter-carrier interference (ICI), caused by multipath fading. The primary aim of this study is to demonstrate the theoretical system capacity of FBMC and OFDM systems, consider their ACI and multipath fading in an asynchronous scenario, and ascertain the superiority of each approach based on the parameters of guard band and delay spread.","PeriodicalId":113074,"journal":{"name":"2022 IEEE Radio and Wireless Symposium (RWS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133582465","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
Distributed FD-MIMO (D-FD-MIMO): from Concept to Field Test 分布式FD-MIMO (D-FD-MIMO):从概念到现场测试
2022 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2022-01-16 DOI: 10.1109/RWS53089.2022.9719972
Jin Yuan, Yu Liu, Yeqing Hu, Gary Xu, Jianzhong Zhang
{"title":"Distributed FD-MIMO (D-FD-MIMO): from Concept to Field Test","authors":"Jin Yuan, Yu Liu, Yeqing Hu, Gary Xu, Jianzhong Zhang","doi":"10.1109/RWS53089.2022.9719972","DOIUrl":"https://doi.org/10.1109/RWS53089.2022.9719972","url":null,"abstract":"This paper presents the next evolution of FD-MIMO technology for beyond 5G, where antennas of the FD-MIMO system are placed in a distributed manner. This system, referred to as Distributed FD-MIMO (D-FD-MIMO) system, is capable of providing higher cell average throughput as well as more uniform user experience compared to the conventional FD-MIMO system. System level simulations results show that the proposed D-FD-MIMO system achieves 1.4 – 2 times cell average throughput gain compared to the FD-MIMO system. A proof of concept (PoC) system, which is developed for D-FD-MIMO, is presented. The UE assisted over-the-air (OTA) calibration, which is the most important process of D-FD-MIMO, is discussed. Finally, the field test results are presented.","PeriodicalId":113074,"journal":{"name":"2022 IEEE Radio and Wireless Symposium (RWS)","volume":"228 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131887760","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
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