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Blind Post-Compensation of Tandem Nonlinearity Caused by Transmitter and Receiver 发射接收机串列非线性的盲后补偿
2020 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2020-01-01 DOI: 10.1109/RWS45077.2020.9050100
T. Abe, Y. Yamao
{"title":"Blind Post-Compensation of Tandem Nonlinearity Caused by Transmitter and Receiver","authors":"T. Abe, Y. Yamao","doi":"10.1109/RWS45077.2020.9050100","DOIUrl":"https://doi.org/10.1109/RWS45077.2020.9050100","url":null,"abstract":"Transmitters and receivers in 5G systems are required to cover broad bandwidth and achieve high-accuracy signal transmission. This paper proposes a novel blind nonlinear post-compensation technique that improves received EVM by eliminating whole nonlinearities caused by transmitter and receiver after receiving the signal. The total nonlinear characteristic is modelled using a tandem polynomial and the proposed post-compensator determines the inverse characteristic of the tandem nonlinearity without knowledge of sending signal. The simulation results employing LTE-A signal with 256 QAM modulation show that the proposed method can efficiently suppress nonlinearity and achieve EVM of less than 2 %","PeriodicalId":184822,"journal":{"name":"2020 IEEE Radio and Wireless Symposium (RWS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121568410","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
A 300 GHz Data Communication Receiver Using Plasma-Wave FET Detector in 65nm CMOS 基于等离子体波FET探测器的300ghz数据通信接收机
2020 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2020-01-01 DOI: 10.1109/RWS45077.2020.9050055
Kefei Wu, M. Shafee, P. Bars, W. Sahyoun, S. Blin, G. Ducournau, W. Knap, M. Hella
{"title":"A 300 GHz Data Communication Receiver Using Plasma-Wave FET Detector in 65nm CMOS","authors":"Kefei Wu, M. Shafee, P. Bars, W. Sahyoun, S. Blin, G. Ducournau, W. Knap, M. Hella","doi":"10.1109/RWS45077.2020.9050055","DOIUrl":"https://doi.org/10.1109/RWS45077.2020.9050055","url":null,"abstract":"This paper presents a fully integrated receiver for 300 GHz communication using plasma-wave field effect transistor (FET) detector in digital 65 nm CMOS technology (fT /fmax=170/230 GHz). Besides the detector, the receiver chain includes an on chip patch antenna and a broadband base-band amplifier. The low modulation frequency charac-terization shows a responsivity around 3 V/W at 290 GHz with a bandwidth around 20 GHz (280 ∼ 300 GHz). Using a PRBS signal source, the highest measured detectable data rate is 1 Gb/s at 300 GHz carrier frequency, which shows the capability of data communication using the single FET plasma wave detector. The measured data rate is limited by the output power generated from the modulated signal source as well as the noise collected over the bandwidth of the amplifier. To the authors’ best knowledge, this is the first demonstration of successful communication in CMOS with integrated antenna, single plasma wave FET detector and broadband amplifier in sub-millimeter/terahertz wave frequencies.","PeriodicalId":184822,"journal":{"name":"2020 IEEE Radio and Wireless Symposium (RWS)","volume":"277 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124230846","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
Direction-of-Arrival Measurement of Beamformed Millimeter Wave 5G Downlink Signals 波束形成毫米波5G下行信号的到达方向测量
2020 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2020-01-01 DOI: 10.1109/RWS45077.2020.9050030
S. Wittig, Mathis Schmieder, W. Keusgen, Eduardo Inzunza
{"title":"Direction-of-Arrival Measurement of Beamformed Millimeter Wave 5G Downlink Signals","authors":"S. Wittig, Mathis Schmieder, W. Keusgen, Eduardo Inzunza","doi":"10.1109/RWS45077.2020.9050030","DOIUrl":"https://doi.org/10.1109/RWS45077.2020.9050030","url":null,"abstract":"In this paper, we investigate a method for measuring the direction-of-arrival (DoA) of beamformed millimeter wave downlink signals in 5G mobile radio networks. The proposed method exploits the downlink synchronization signal structure of millimeter wave base stations to employ a virtual uniform circular antenna array approach for spatial sampling. It provides information on the temporal and spatial characteristics of the major radio signal propagation paths on a per beam level. Results of experimental proof-of-concept measurements conducted in an operational 5G network deployment are presented.","PeriodicalId":184822,"journal":{"name":"2020 IEEE Radio and Wireless Symposium (RWS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116620202","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
Millimeter-Wave Single-Layer Full-Band WR12 Vertical Waveguide Transition 毫米波单层全频带WR12垂直波导过渡
2020 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2020-01-01 DOI: 10.1109/RWS45077.2020.9050127
W. Ahmad, D. Kissinger, H. Ng
{"title":"Millimeter-Wave Single-Layer Full-Band WR12 Vertical Waveguide Transition","authors":"W. Ahmad, D. Kissinger, H. Ng","doi":"10.1109/RWS45077.2020.9050127","DOIUrl":"https://doi.org/10.1109/RWS45077.2020.9050127","url":null,"abstract":"In this paper the Nippon Pillar’s low-loss substrate material F300AS is utilized to implement a planar single-layer substrate-integrated waveguide (SIW-) based vertical waveguide transitions to cover the full WR12 band. Two designs are implemented on thin and thick substrate to seek the maximum obtainable bandwidth. The SIW-WR12 transition comprises of rectangular aperture and two via pairs to widen its bandwidth. The simulated 1-dB bandwidth spans from 60-88 GHz on the thick substrate. The transition is directly mounted on the board and it does not require additional mechanical parts for fixation. Back-to-back structures were fabricated and measured for verification.","PeriodicalId":184822,"journal":{"name":"2020 IEEE Radio and Wireless Symposium (RWS)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130381301","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
Preservation of Phase Resolution with Wideband Integer-N Based Phase Modulators 基于宽带整数n的相位调制器的相位分辨率保持
2020 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2020-01-01 DOI: 10.1109/RWS45077.2020.9050040
Kevin Grout, J. Kitchen
{"title":"Preservation of Phase Resolution with Wideband Integer-N Based Phase Modulators","authors":"Kevin Grout, J. Kitchen","doi":"10.1109/RWS45077.2020.9050040","DOIUrl":"https://doi.org/10.1109/RWS45077.2020.9050040","url":null,"abstract":"This paper presents a method for creating a wideband PLL-based phase shifter, which yields maximum phase resolution over its entire range of output frequencies. Furthermore, by generating the phase shifts at low frequency and upconverting the phase information with the PLL, this system can generate phase shifts of resolution comparable with state of the art phase modulators without the need for complex matching or calibration techniques. A rigorous proof of the necessary and sufficient conditions for maximum phase resolution in integer-N synthesizers is presented. A 0.64-2.7 GHz, 7-bit phase modulator system is designed and simulated in a 1V 65nm CMOS process, and the results prove the efficacy of the presented modulation method. The presented design shows finer phase resolution than is achievable using current-starved inverter based delays in the 65nm process.","PeriodicalId":184822,"journal":{"name":"2020 IEEE Radio and Wireless Symposium (RWS)","volume":"4 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133626935","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
Impact of the input baseband impedance on the intermodulation distortion and linearizability of RF power transistors 输入基带阻抗对射频功率晶体管互调失真和线性化的影响
2020 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2020-01-01 DOI: 10.1109/RWS45077.2020.9050132
H. Ladhani, Jeffrey K. Jones, J. Staudinger, J. Kenney
{"title":"Impact of the input baseband impedance on the intermodulation distortion and linearizability of RF power transistors","authors":"H. Ladhani, Jeffrey K. Jones, J. Staudinger, J. Kenney","doi":"10.1109/RWS45077.2020.9050132","DOIUrl":"https://doi.org/10.1109/RWS45077.2020.9050132","url":null,"abstract":"Nonlinearities in Radio Frequency Power Transistors can be attributed to mechanisms such as non-linear transconductances and nonlinear capacitances at the device terminals. In this paper, we extend the work in by Ladhani et al to include the impact of the nonlinear gate-source capacitance in a MOSFET (Metal Oxide Semiconductor Field Effect Transistor) and discuss its contribution (along with the gate baseband impedance) to the amplifier’s intermodulation distortion and linearizability. Measured results show that for a 140W (P1dB (1dB Compression Point)) Class AB LDMOS (Laterally Diffused Metal Oxide Semiconductor Field Effect Transistor) PA, an optimized gate baseband impedance provides 6dB improvement in corrected ACPR (Adjacent Channel Power Ratio) and 7dB improvement in corrected Alt-1 (First Adjacent Channel Power Ratio) at 7dB backoff from peak power using a 4-Carrier WCDMA (Wideband Code Division Multiple Access) signal.","PeriodicalId":184822,"journal":{"name":"2020 IEEE Radio and Wireless Symposium (RWS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131301705","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
Balanced Noise Design of Dual-Band 2.4/5-GHz pHEMT LNAs 双频2.4/ 5ghz pHEMT LNAs的平衡噪声设计
2020 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2020-01-01 DOI: 10.1109/RWS45077.2020.9050020
C. Meng, Wei-Ling Chang, Yu-Chih Hsiao, Meng-Che Li, Hsin-Yi Chien, G. Huang
{"title":"Balanced Noise Design of Dual-Band 2.4/5-GHz pHEMT LNAs","authors":"C. Meng, Wei-Ling Chang, Yu-Chih Hsiao, Meng-Che Li, Hsin-Yi Chien, G. Huang","doi":"10.1109/RWS45077.2020.9050020","DOIUrl":"https://doi.org/10.1109/RWS45077.2020.9050020","url":null,"abstract":"This paper presents dual-band 2.4/5-GHz dual-band pHEMT LNAs based on a balanced noise design approach using 0.15 μm pHEMT technology. A dual-band LNA has two input match frequencies without simultaneous noise match at these two frequencies especially when the extrinsic loss caused by the inductor is absent. Noise parameters as a function of frequencies for a dual-band FET LNA based on the balanced noise performance are developed. The fully integrated pHEMT LNA achieves power gain of 18 dB at 2.4 GHz and 12 dB at 5 GHz and noise figure about 3dB at 2.4 GHz and 5 GHz, respectively, at 12.6 mA and 3 V. The pHEMT LNA with a bondwire inductor at input match demonstrates a distinct balanced noise performance.","PeriodicalId":184822,"journal":{"name":"2020 IEEE Radio and Wireless Symposium (RWS)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132659367","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
Experimental Evaluation of Adaptive Beamforming for Automotive Radar Interference Suppression 自适应波束形成抑制汽车雷达干扰的实验评价
2020 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2020-01-01 DOI: 10.1109/RWS45077.2020.9049982
Muhammad Rameez, M. Dahl, M. Pettersson
{"title":"Experimental Evaluation of Adaptive Beamforming for Automotive Radar Interference Suppression","authors":"Muhammad Rameez, M. Dahl, M. Pettersson","doi":"10.1109/RWS45077.2020.9049982","DOIUrl":"https://doi.org/10.1109/RWS45077.2020.9049982","url":null,"abstract":"Mutual interference between automotive radars can make it difficult to detect targets, especially the weaker ones, such as cyclists and pedestrians. In this paper, the interference suppression performance of a Least Mean Squares (LMS) algorithm-based adaptive beamformer is evaluated using measurements from a 77 GHz Frequency Modulated Continuous Wave (FMCW) radar in an outdoor environment. It is shown that the adaptive beamformer increases detection performance and that the interference is suppressed down to the noise floor of the radar in the Range-Doppler domain. In the paper, real baseband sampling and complex-baseband sampling (IQ) radar receivers are compared in the context of interference suppression. The measurements show that IQ receivers are more beneficial in the presence of interference.","PeriodicalId":184822,"journal":{"name":"2020 IEEE Radio and Wireless Symposium (RWS)","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123181912","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: 6
Analysis of Avalanche Signal Recovery in Sinewave Gated High Speed Single Photon Detectors 正弦波门控高速单光子探测器雪崩信号恢复分析
2020 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2020-01-01 DOI: 10.1109/RWS45077.2020.9050111
K. Gebremicael, J. Rarity
{"title":"Analysis of Avalanche Signal Recovery in Sinewave Gated High Speed Single Photon Detectors","authors":"K. Gebremicael, J. Rarity","doi":"10.1109/RWS45077.2020.9050111","DOIUrl":"https://doi.org/10.1109/RWS45077.2020.9050111","url":null,"abstract":"A Single Photon Avalanche Diode (SPAD) can detect a single-photon if the reverse bias is greater than the breakdown voltage. In a time-gated SPAD the bias rises above the breakdown voltage only when a photon is expected. The frequency of the gating signal can be configured depending on the detection speed requirement. The benefits of time-gated operation include faster detector response times and low after-pulsing effect. However, this mode of operation also requires to recover the avalanche signal that can be lost in the capacitive response of the SPAD. Numerous techniques have been developed in the past to solve this issue, in this paper we present the impact of the recovery techniques on the avalanche signal in a sinewave gated high speed SPAD. The measurement results show that Chebyshev low-pass filter distorts the avalanche pulse, whereras the signal remains undistorted when using destructive interference.","PeriodicalId":184822,"journal":{"name":"2020 IEEE Radio and Wireless Symposium (RWS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125789272","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
Advanced Thermal Modeling of IC – Package Interaction 集成电路-封装相互作用的高级热建模
2020 IEEE Radio and Wireless Symposium (RWS) Pub Date : 2020-01-01 DOI: 10.1109/RWS45077.2020.9050057
Zhibo Cao, M. Stocchi, M. Wietstruck, F. Garbuglia, Diego Pincini, M. Kaynak
{"title":"Advanced Thermal Modeling of IC – Package Interaction","authors":"Zhibo Cao, M. Stocchi, M. Wietstruck, F. Garbuglia, Diego Pincini, M. Kaynak","doi":"10.1109/RWS45077.2020.9050057","DOIUrl":"https://doi.org/10.1109/RWS45077.2020.9050057","url":null,"abstract":"A layout based finite element thermal convection model including detailed board tracing and packaging information is developed. A state-of-art 0.13-µm SiGe BiCMOS chip with embedded poly-resistors and thermal diodes are used as experimental validations of thermal modelling results. The designated thermal model demonstrates a high accuracy of less than 1.5 Celsius deviation from experimental results. And the layout based automatic generation of model geometry drastically reduces time consumption during model development and, moreover, paves the way for modelling of packages which possess even higher complexities.","PeriodicalId":184822,"journal":{"name":"2020 IEEE Radio and Wireless Symposium (RWS)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126054146","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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