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

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A 24.25-27.5 GHz Front-End Module with Transformer-Based T/R Switch for 5-G communications 一种用于5g通信的24.25-27.5 GHz带变压器收发开关前端模块
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226218
Jiawen Wang, Wei Zhu, Yan Wang
{"title":"A 24.25-27.5 GHz Front-End Module with Transformer-Based T/R Switch for 5-G communications","authors":"Jiawen Wang, Wei Zhu, Yan Wang","doi":"10.1109/RFIT49453.2020.9226218","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226218","url":null,"abstract":"An innovative 24.25-27.5 GHz front-end module (FEM) with an ultra-compact transformer-based transmit/ receive switch (TRSW) is introduced in this paper. The TRSW which consists of a four-inductor coupled resonator (three-winding transformer and a source degeneration inductor), a shunt transistor switch and a two-bit capacitor bank, functions as TRSW, balun and matching networks within only an inductor footprint. It is co-designed with the low noise amplifier (LNA) and power amplifier (PA) to achieve minimum noise figure (NF) and maximum output power and linearity. To prove the concept, the FEM is implemented in a 65-nm CMOS process. The measurement results demonstrate that the FEM achieves 25.5 dB small signal gain with a 5.9 dB minimum NF in RX mode, while the FEM achieves 14.4 dBm OP1dB and 16 dBm Psat in TX mode, demonstrating the best OP1dB when compared to state-of-the-art 28-GHz FEMs.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"17 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":"115908495","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: 5
Circuit-Simulation-Based Design Optimization of 3.5 GHz Doherty Power Amplifier via Multi-Objective Evolutionary Algorithm and Unified Optimization Framework 基于多目标进化算法和统一优化框架的3.5 GHz Doherty功率放大器电路仿真设计优化
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226245
Chao-Hsuan Chen, Ya-Shu Yang, Chieh-Yang Chen, Yun-Che Hsieh, Zuo‐Min Tsai, Yiming Li
{"title":"Circuit-Simulation-Based Design Optimization of 3.5 GHz Doherty Power Amplifier via Multi-Objective Evolutionary Algorithm and Unified Optimization Framework","authors":"Chao-Hsuan Chen, Ya-Shu Yang, Chieh-Yang Chen, Yun-Che Hsieh, Zuo‐Min Tsai, Yiming Li","doi":"10.1109/RFIT49453.2020.9226245","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226245","url":null,"abstract":"A circuit-simulation-based optimization technique is utilized to automatically design a HEMT-based Doherty power amplifier (PA) at 3.5 GHz. The newly proposed approach integrates a multi-objective evolutionary algorithm and ADS® circuit simulator running on the platform of the unified optimization framework. In terms of several key factors of the explored PA including layout constraints, we can optimize the power-added efficiency, the output power, and the gain simultaneously, where the remarkable 51.3%, 43.7 dBm, and 7.5 dB, have been achieved correspondingly.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"32 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":"123059612","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
A 20-43 GHz Low Noise GaAs Downconverter with Gbps Data-Links for Full 5G K/Ka-Band Backhauls 具有Gbps数据链路的20-43 GHz低噪声GaAs下变频器，用于全5G K/ ka波段回程
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226248
Chun-Nien Chen, Tai-Yu Kuo, Huei Wang
{"title":"A 20-43 GHz Low Noise GaAs Downconverter with Gbps Data-Links for Full 5G K/Ka-Band Backhauls","authors":"Chun-Nien Chen, Tai-Yu Kuo, Huei Wang","doi":"10.1109/RFIT49453.2020.9226248","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226248","url":null,"abstract":"A 20–43 GHz downconverter with wide IF BW, low noise, and Gbps-data links with good SNR is introduced for the superheterodyne Rx of 5G backhauls. The single-balanced (SB-) downconverter adopts passive cold-bias mixing stage and differential common-source (CS-) FETs $g_{mathrm{m}}$ stage to achieve wide RF/IF BW, high isolations, and low noise figure (NF) with low LO drive. Continuous wave (CW) tests show RF BW of 20–43 GHz and IF BW of 0.1-6 GHz with flat conversion gain (CG), and 6.2-9.7 dB single-sideband (SSB) NF. The GHz-BW QAM carrier down-conversion tests present 8–15 Gbps data rate with 64/256 QAM in 5G K/Ka-band of 24/28/39 GHz. The wideband downconverter with Gbps data-link capability can be utilized for high-speed backhauls communication in full 5G K/Ka-bands.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"6 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113970741","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
300-GHz-Band Self-Heterodyne Wireless System for Real-Time Video Transmission Toward 6G 面向6G实时视频传输的300 ghz波段自外差无线系统
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226182
Y. Morishita, T. Teraoka, Yuichi Kashino, Hitoshi Asano, Takenori Sakamoto, N. Shirakata, K. Takinami, Kazuaki Takahashi
{"title":"300-GHz-Band Self-Heterodyne Wireless System for Real-Time Video Transmission Toward 6G","authors":"Y. Morishita, T. Teraoka, Yuichi Kashino, Hitoshi Asano, Takenori Sakamoto, N. Shirakata, K. Takinami, Kazuaki Takahashi","doi":"10.1109/RFIT49453.2020.9226182","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226182","url":null,"abstract":"This paper demonstrates 300 GHz terahertz wireless communication using CMOS transmitter and receiver modules targeting beyond 5G (or 6G). In order to support OFDM, a self-heterodyne architecture is introduced, which effectively cancels inter-carrier-interference due to phase noise in multi-carrier modulation. Besides, to extend communication distance, the high-gain antenna of a 40 dBi Cassegrain antenna is designed. As a proof-of-concept, the paper successfully demonstrates real-time video transfer at a 10 m communication distance using 5G based OFDM at the 300 GHz frequency band.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"86 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":"122548084","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
Microwave Holography for Breast Imaging 微波全息乳房成像
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226233
Y. Kuwahara
{"title":"Microwave Holography for Breast Imaging","authors":"Y. Kuwahara","doi":"10.1109/RFIT49453.2020.9226233","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226233","url":null,"abstract":"In this paper, we propose the application of microwave holography for breast imaging. We demonstrate that this method can reconstruct tissue structure in the breast by numerical simulation using a numerical breast phantom.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"37 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":"122320531","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
6 – 10 GHz Cryogenic GaAs pHEMT LNA MMIC 6 - 10 GHz低温砷化镓pHEMT LNA MMIC
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226214
Hayato Shimizu, Yudai Iwashita, Ryotaro Iwamoto, Tamio Kawaguchi, K. Nishikawa
{"title":"6 – 10 GHz Cryogenic GaAs pHEMT LNA MMIC","authors":"Hayato Shimizu, Yudai Iwashita, Ryotaro Iwamoto, Tamio Kawaguchi, K. Nishikawa","doi":"10.1109/RFIT49453.2020.9226214","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226214","url":null,"abstract":"This paper demonstrates a cryogenic broadband GaAs pHEMT LNA MMIC. The LNA MMIC was designed by using modified GaAs pHEMT model, which includes the thermal characteristics of each device material. The MMIC was fabricated by using a commercial $0.25mu m$ GaAs pHEMT process. The fabricated LNA MMIC achieved a noise figure of less than 0.3 dB and an associated gain of over 15dB at 6–10 GHz and 77K operating temperature. The corresponding return losses are better than 10 dB. At 7GHz, the LNA realized a noise figure of 0.11dB (a noise temperature of 7.7K) and an associated gain of 20dB. The power consumption is 25 mW. The MMIC occupied 1.4mm⨯1.0mm. These performances are the same level as those of LNAs at 10K-20K operating temperature.","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":"122353314","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
Link Design and Received Power Measurement of 5 GHz Band Wi-Fi Backscatter System Using a Miniaturized Antenna Module 基于小型化天线模块的5ghz频段Wi-Fi后向散射系统链路设计与接收功率测量
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226208
Taiki Machii, Koki Edamatsu, M. Motoyoshi, S. Kameda, N. Suematsu
{"title":"Link Design and Received Power Measurement of 5 GHz Band Wi-Fi Backscatter System Using a Miniaturized Antenna Module","authors":"Taiki Machii, Koki Edamatsu, M. Motoyoshi, S. Kameda, N. Suematsu","doi":"10.1109/RFIT49453.2020.9226208","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226208","url":null,"abstract":"In this paper, the link design and measurement of received power of 5 GHz band backscatter communication are reported. The backscatter performed by the sensor node (SN) communicates using only the power of the Wi-Fi signal of the access point (AP). Therefore, there is a possibility that sufficient received power is not be obtained. We designed miniaturized antenna modules for SN with a backscatter feature and measured the received power during backscatter communication. As a result, it was possible to communicate about 2.5 m.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"41 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":"127838008","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
Dual-polarized Bidirectional-beam Dielectric Waveguide Antenna 双极化双向波束介质波导天线
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226193
Y. Konishi, Yuya Hayashi, Keita Saiki, Daisuke Kondo
{"title":"Dual-polarized Bidirectional-beam Dielectric Waveguide Antenna","authors":"Y. Konishi, Yuya Hayashi, Keita Saiki, Daisuke Kondo","doi":"10.1109/RFIT49453.2020.9226193","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226193","url":null,"abstract":"This paper presents a dual-polarized bidirectional-beam dielectric waveguide antenna using an image guide type dielectric waveguide suitable for a small base station antenna. This antenna is easy to fabricate because the image guide is constructed by a rectangular dielectric rod on the ground plane and does not use plated metal sheets. Dual polarization operation is considered for the polarization diversity. The fabricated antenna has good performances. Also, measured performances agree with the calculated ones.","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":"128359964","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
Study of Input Signal Waveforms for Precise Analog Counter 精密模拟计数器输入信号波形的研究
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226225
Kai Ichikawa, K. Sekine, S. Hara, R. Dong, A. Kasamatsu
{"title":"Study of Input Signal Waveforms for Precise Analog Counter","authors":"Kai Ichikawa, K. Sekine, S. Hara, R. Dong, A. Kasamatsu","doi":"10.1109/RFIT49453.2020.9226225","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226225","url":null,"abstract":"This paper introduces an improvement of precise analog counter for high-speed reinforcement learning by devising input waveform. The analog counter is a circuit that changes an output voltage according to the number of input pulses. In this circuit, as the output voltage goes up and down, the output per input waveform changes. In this paper, the output change per input waveform was compared between the case where a square wave with a period of 400 ps was input directly to an analog counter and the case where a spike signal was input, and it was found that the characteristics were improved when the spike signal was input.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"22 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":"133276495","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
SiGe-GaN Tx module using Chip Embedded Substrate in S-band 采用s波段芯片嵌入式衬底的SiGe-GaN Tx模块
2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI: 10.1109/RFIT49453.2020.9226211
K. Kawasaki, E. Kuwata, Hidenori, Ishibashi, T. Yao, Kazuhiro Maeda, H. Shibata, Kiyoshi Ishida, M. Tsuru, K. Mori, M. Shimozawa
{"title":"SiGe-GaN Tx module using Chip Embedded Substrate in S-band","authors":"K. Kawasaki, E. Kuwata, Hidenori, Ishibashi, T. Yao, Kazuhiro Maeda, H. Shibata, Kiyoshi Ishida, M. Tsuru, K. Mori, M. Shimozawa","doi":"10.1109/RFIT49453.2020.9226211","DOIUrl":"https://doi.org/10.1109/RFIT49453.2020.9226211","url":null,"abstract":"This paper describes small size 3D structure SiGe-GaN Tx module using chip embedded substrate. In order to achieve small package size of the Tx module, the GaN device is embedded in the PCB substrate. As the SiGe device and chip inductors are mounted on the PCB substrate over the GaN device, the chip area can be reduced compared the conventional 2D structure. In addition, an area array form factor is adopted for SiGe, GaN, and Tx modules. The area of SiGe and GaN devices and Tx modules can be reduced without reducing the number of I/O ports. Utilizing the both advantages of SiGe and GaN devices, the proposed Tx module achieves a high output power over 1W and the function of phase and amplitude control. The package size of the Tx module is occupying 7⨯7mm2 including SiGe and GaN devices and two chip inductors. The Tx module achieves phase and amplitude error of less than 1.5 degrees-rms., and 0.3dB rms., and an output power of 32dBm, respectively.","PeriodicalId":283714,"journal":{"name":"2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"58 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113989856","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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