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2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)最新文献

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An Overview of 2.4GHz High Power and High Efficiency GaN-HFET VCOs for Intelligent Heating 用于智能加热的2.4GHz大功率高效GaN-HFET压控振荡器综述
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226194
H. Ikeda, T. Kaho, Y. Itoh
{"title":"An Overview of 2.4GHz High Power and High Efficiency GaN-HFET VCOs for Intelligent Heating","authors":"H. Ikeda, T. Kaho, Y. Itoh","doi":"10.1109/RFIT49453.2020.9226194","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226194","url":null,"abstract":"This paper overviews our current results on ISM-band high power and high efficiency GaN-HFET VCOs for use in the microwave intelligent heating. It describes mainly on the circuit design techniques using the imbalanced coupling resonator, the frequency variable resonator handling high power, the resonator-less feedback circuit, and injection-locked phase control. These design techniques can be considered as candidates for achieving higher power and higher efficiency of the oscillator type VCOs. With these techniques, miniaturized size and higher performance can be realized.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123991174","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 2-stage D-band Power Amplifier with 7 dBm Output Power at 0.14 THz in a 0.13μm SiGe Technology 采用0.13μm SiGe技术，在0.14 THz下输出功率为7 dBm的2级d波段功率放大器
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226203
Peng Zhang, Lin He, Yu-feng Guo, Xiaohua Fan, Hao Gao
{"title":"A 2-stage D-band Power Amplifier with 7 dBm Output Power at 0.14 THz in a 0.13μm SiGe Technology","authors":"Peng Zhang, Lin He, Yu-feng Guo, Xiaohua Fan, Hao Gao","doi":"10.1109/RFIT49453.2020.9226203","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226203","url":null,"abstract":"In this work, a D-band power amplifier with 7 dBm output at 0.14 THz is presented in a 0.13 μm SiGe:C BiCMOS technology. The $f_{t}$ and $f_{max}$ of this technology are 250GHz and 400GHz respectively. Due to the technology limitation, this work is close to the half of the $f_{max}$ whose performance is mainly limited by the parasitic. In this work, a two-stage differential cascode topology with transformer and inter-stage coupling is implemented with the $C_{CE}$ reduction layout optimization method to increase the output power. This D-band PA achieves a $P_{1dB}$ and $P_{sat}$ of 0.5 dBm and 7.1 dBm, respectively.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132628585","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
Investigation of Rectifier Operation with Harmonic Controlled Input Signals towards Pulse Modulation WiCoPT System 脉冲调制WiCoPT系统谐波控制输入信号整流运行研究
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226251
Runyuan Li, S. Yoshida, Yasunori Suzuki, H. Okazaki, K. Nishikawa
{"title":"Investigation of Rectifier Operation with Harmonic Controlled Input Signals towards Pulse Modulation WiCoPT System","authors":"Runyuan Li, S. Yoshida, Yasunori Suzuki, H. Okazaki, K. Nishikawa","doi":"10.1109/RFIT49453.2020.9226251","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226251","url":null,"abstract":"This paper investigates the rectifier operation with harmonic controlled input signals. Compared with continuous wave (CW) input signal, a fundamental signal with odd harmonics increases the output voltage and the RF-DC power conversion efficiency (PCE) of the rectifier by optimizing the amplitudes and phases of the odd harmonics. Analysis to use various pulse waveform signals clarified that the optimal waveform to maximize the PCE of a single shunt rectifier circuit is the square wave signal, and the PCE improvement achieves more than 5points against CW input signal at −3dBm input power. However, experimental results with the fabricated single-shunt rectifier indicate that use of the triangle waveform realizes the most efficient signal for the PCE. That result could be occurred by adjusting the phase of the 3rd harmonic signal in the rectifier.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122871469","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
Matching Circuit-less Power Amplifier Design for Microwave Wireless Power Transmission Systems 微波无线电力传输系统的匹配无电路功率放大器设计
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226228
S. Hara, Asako Suzuki
{"title":"Matching Circuit-less Power Amplifier Design for Microwave Wireless Power Transmission Systems","authors":"S. Hara, Asako Suzuki","doi":"10.1109/RFIT49453.2020.9226228","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226228","url":null,"abstract":"A new power amplifier (PA) design method is proposed that eliminates the output-matching circuit to improve efficiency and is applied to a 2.4 GHz 33 W GaN HEMT PA for microwave wireless power transmission applications. The fabricated PA has a drain efficiency of 82.3% and a power-added efficiency of 78.8%. The design parameters and the performance of the fabricated inverse class- F PA are also discussed analytically.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121080502","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
Highly-Efficient Broadband Millimeter-Wave 5G Power Amplifiers in GaN, SiGe, and CMOS-SOI 基于GaN、SiGe和CMOS-SOI的高效宽带毫米波5G功率放大器
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226215
D. Lie, J. Mayeda, Jerry Lopez
{"title":"Highly-Efficient Broadband Millimeter-Wave 5G Power Amplifiers in GaN, SiGe, and CMOS-SOI","authors":"D. Lie, J. Mayeda, Jerry Lopez","doi":"10.1109/RFIT49453.2020.9226215","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226215","url":null,"abstract":"We present several broadband high-efficient power amplifier (PA) designs for potential millimeter-wave (mm-Wave) 5G (5th Generation) applications. The PA is targeted to cover the key part of 5G FR2 band (i.e., 24.25 to 43.5 GHz), with $P_{OUT, MAX}$ ≥ 16 dBm and peak power-added-efficiency (PAE) above 30%. We use advanced mm-Wave IC technologies in 40 nm GaN, 22 nm CMOS FD-SOI, and 90 nm SiGe BiCMOS processes to prototype medium-power mm-Wave 5G PAs. Post-layout simulations and preliminary measurement data indicates the PAs should be able to meet the performance targets, and there are design trade-offs on $P_{OUT, MAX}$ and PAE due to different device technologies, circuit topologies (differential, cascode), biasing, matching network, etc.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129598587","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
Theoretical Study of Optimal Feedback LNA Design 最优反馈LNA设计理论研究
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226192
Kosuke Ono, S. Amakawa
{"title":"Theoretical Study of Optimal Feedback LNA Design","authors":"Kosuke Ono, S. Amakawa","doi":"10.1109/RFIT49453.2020.9226192","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226192","url":null,"abstract":"It is known that designing an LNA for its minimum noise figure (NF) is not the best if the design goal is the lowest NF of the entire receiver (RX). A better LNA performance metric is the noise measure (NM). However, if feedback is allowed, the minimum NM can be realized with different combinations of NF and available gain, depending on which the RX NF changes. This paper theoretically studies the low-noise performance limit of an RX when lossless feedback is applied to its LNA. Somewhat counterintuitively, the lowest possible RX NF is shown to be realized when the LNA NM is slightly off its minimum NM. A new noise performance metric, $Xi$, is introduced. The RX NF is shown to be minimized when $Xi$ of LNA is minimized. Unlike NM, $Xi$ is applicable even when the first stage of an RX is passive, as in a passive-mixer-first THz RX.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127004008","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
Cherenkov-type phase matched terahertz wave generation from LiNbO3 waveguide using mode-locked fiber laser and optical amplifier 锁模光纤激光器和光放大器在LiNbO3波导中产生切连科夫型相位匹配太赫兹波
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226170
T. Okada, K. Shiota, M. Hashimoto, S. Masuda, M. Kimishima
{"title":"Cherenkov-type phase matched terahertz wave generation from LiNbO3 waveguide using mode-locked fiber laser and optical amplifier","authors":"T. Okada, K. Shiota, M. Hashimoto, S. Masuda, M. Kimishima","doi":"10.1109/RFIT49453.2020.9226170","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226170","url":null,"abstract":"We demonstrate Cherenkov-type phase-matched terahertz wave generation using a LiNbO3 waveguide that incorporates a half-conic silicon prism, which efficiently generates broadband terahertz waves in a frequency range up to 7 THz with a pulse duration of 146 fs. We use a newly developed environmentally stable passively mode-locked fiber laser and an optical amplifier as a pulse compressor to generate stable high-intensity ultra-short pulses. As a result, optical pulses with a 50-fs pulse duration, an average output power of 50 mW, and a repetition rate of 50 MHz can be successfully generated.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"07 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127190703","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
Non-destructive Inspection of Concrete Surface Crack Using Near-Field Scattering 混凝土表面裂纹的近场散射无损检测
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226171
A. Hirata, K. Suizu, Yoshikazu Sudo, I. Watanabe, N. Sekine, A. Kasamatsu
{"title":"Non-destructive Inspection of Concrete Surface Crack Using Near-Field Scattering","authors":"A. Hirata, K. Suizu, Yoshikazu Sudo, I. Watanabe, N. Sekine, A. Kasamatsu","doi":"10.1109/RFIT49453.2020.9226171","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226171","url":null,"abstract":"This paper presents non-destructive inspection of sub-millimeter wide concrete surface cracks covered by paper using near-field scattering. One of the problem for nondestructive imaging using near-field scattering is low millimeter-wave (MMW) image contrast at the surface crack, because the decrease of received power due to near-field scattering is about 1 dB. This paper presents the nondestructive inspection technologies that improve the MMW image contrast at the surface crack by using standing wave between the probe antenna and sample surface. We have found that the black and white of the MMW image pixels that correspond to the concrete cracks is inverted according to the paper thickness or antenna height, and the image contrast can be improved by calculating the difference of two MMW images obtained from different paper thickness. When we measured the frequency characteristics of the reflected MMW signal, a sharp spectral notch was observed in the reflected MMW signals, and the spectral notch frequency depends on the presence or absence of crack, paper thickness, and antenna height. We have achieved the improvement of MMW image contrast at surface crack by using these MMW spectroscopy technologies.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127373588","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
Introduction of Radio-Integrated System Applications in the Field of Factory Automation 无线电集成系统在工厂自动化领域的应用简介
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226204
Ryota Yamada
{"title":"Introduction of Radio-Integrated System Applications in the Field of Factory Automation","authors":"Ryota Yamada","doi":"10.1109/RFIT49453.2020.9226204","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226204","url":null,"abstract":"In this paper, I will introduce use cases of radio-integrated systems in the field of factory automation. To help understanding the use cases and current status of technology already available in the market, I will also share four examples of radio-integrated system applications: (1) FEMS (Factory Energy Management System), (2) Wireless Switches, (3) RFID (Radio Frequency Identifier) and (4) AMR (Autonomous Mobile Robot).","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131094636","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 90-GHz High DC-to-RF Efficiency VCO with Multi-Way Transformers in 65-nm CMOS 基于65纳米CMOS的90 ghz高dc - rf效率压控振荡器
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226213
Junghwan Yoo, Heekang Son, Jungsoo Kim, Doyoon Kim, J. Rieh
{"title":"A 90-GHz High DC-to-RF Efficiency VCO with Multi-Way Transformers in 65-nm CMOS","authors":"Junghwan Yoo, Heekang Son, Jungsoo Kim, Doyoon Kim, J. Rieh","doi":"10.1109/RFIT49453.2020.9226213","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226213","url":null,"abstract":"This paper presents a high efficiency gate inductive feedback Colpitts Voltage Controlled Oscillator (VCO) operating near 90 GHz. It includes multi-way transformers at the load, which helps to enhance the DC-to-RF efficiency with boosted impedance and extended voltage swing through drain-buffer and drain-source magnetic couplings. The proposed VCO is fabricated in a 65-nm CMOS process, and showed an oscillation frequency tuning range of 87.5-92.0 GHz (4.5 GHz). Over the frequency range, the output power and the dc power consumption exhibited values of −2.8 −1.7 dBm and 6-22.5 mW, respectively. The peak DC-to-RF efficiency was 9.4 %, and the corresponding phase noise was −107.4 dBc/Hz at 10-MHz offset. The lowest phase noise at the optimum bias condition was −116.7 dB/Hz at 10-MHz offset. The chip size is 400 ⨯ 300 μm2 excluding DC and RF pads.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130934924","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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