Papers - NARAHASHI Shoichi
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Initial Value Assignment Method on Vector Regulator of Power Amplifier for Massive MIMO Base Stations
Ryosuke OHTANI, Shoichi NARAHASHI, Yasunori SUZUKI
Proceedings of 2024 Asia-Pacific Microwave Conference (APMC2024) 432 - 434 2024.11
Joint Work
Research paper (international conference proceedings)
Authorship: Corresponding author
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Novel Configuration for Phased-Array Antenna System Employing Frequency-Controlled Beam Steering Method
Atsushi Fukuda, Hiroshi Okazaki, Shoichi Narahashi
IEICE Transactions on Electronics Vol.E105-C, No.12, pp.740-749 2022.12
Joint Work
Research paper (scientific journal)
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Fast Adjustment Scheme on Vector Regulator of Power Amplifier for Massive MIMO Base Stations
Kazuya Miyamoto, Shoichi Narahashi, Yasunori Suzuki, Hiroshi Okazaki
Proceedings of 2022 Asia-Pacific Microwave Conference (APMC2022) 605 - 607 FR3-F1-5 2022.11
Joint Work
Research paper (international conference proceedings)
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Linearization Technologies for High Efficiency Power Amplifier of Cellular Base Stations
Yasunori Suzuki, Shoichi Narahashi
IEICE Transactions on ElectronicsE104-C ( 10 ) 534 - 542 Vol.E104-C, No.10, pp.534-542 2021.10
Joint Work
Research paper (scientific journal)
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IMD Components Compensation Condition for Dual-Band Feed-Forward Power Amplifier
Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi
IEICE Transactions on ElectronicsE103-C ( 10 ) 434 - 444 Vol.E103-C, No.10, pp.434-444 2020.10
Joint Work
Research paper (scientific journal)
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Theoretical Analysis of Center Frequency and Bandwidth Tunable Resonator Employing Coupled Line and Switches
Kunihiro Kawai, Hiroshi Okazaki, Shoichi Narahashi, Mizuki Motoyoshi, Noriharu Suematsu
IEICE Transactions on ElectronicsE102-C ( 8 ) 612 - 621 2019.08
Joint Work
Research paper (scientific journal)
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Resonant Frequency and Bandwidth Tunable Ring Resonator Using GaAs FET SPST Switches
Kunihiro Kawai, Hiroshi Okazaki, Shoichi Narahashi, Noriharu Suematsu
IEICE Transactions on ElectronicsE102-C ( 5 ) 388 - 398 2019.05
Joint Work
Research paper (scientific journal)
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A Broadband Phased-Array Antenna System Employing Frequency-Upconverted Local Signals With Phase Difference
Atsushi Fukuda, Hiroshi Okazaki, Shoichi Narahashi
IEEE Transactions on Microwave Theory and Techniques67 ( 1 ) 383 - 391 2019.01
Joint Work
Research paper (scientific journal)
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A Power Amplifier for Massive MIMO Base Station
Yasunori Suzuki, Kunihiro Kawai, Hiroshi Okazaki, Shoichi Narahashi, Takahiro Asai, Yukihiko Okumura
電子情報通信学会論文誌CJ101-C ( No.3 ) 139 - 146 2018.03
Joint Work
Research paper (scientific journal)
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PAPR Reduction Method for Digital Predistortion Linearizer Compensating for Frequency Dependent IMD Components
Yasunori SUZUKI, Junya OHKAWARA, Shoichi NARAHASHI
IEICE Transactions on ElectronicsE101-C ( No.2 ) 118 - 125 2018.02
Joint Work
Research paper (scientific journal)
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26 GHz Band Extremely Low-Profile Front-End Configuration Employing Integrated Modules of Patch Antennas and SIW Filters
Yasunori Suzuki, Takana Kaho, Kei Satoh, Hiroshi Okazaki, Yo Yamaguchi, Shoichi Narahashi, Hiroyuki Shiba
IEICE Transactions on ElectronicsE100-C ( No.12 ) 1097 - 1107 2017.12
Joint Work
Research paper (scientific journal)
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Experimental investigations of 28-GHz-Band power amplifier for massive MIMO transmitter
Yasunori Suzuki, Kunihiro Kawai, Hiroshi Okazaki, Shoichi Narahashi, Takahiro Asai, Yukihiko Okumura
2017 IEEE Asia-Pacific Microwave Conference (APMC) 2017.11
Joint Work
Research paper (international conference proceedings)
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Experimental investigation on 15 GHz band integrated front-end module including antenna and filter for 5G mobile communications systems
Yasunori Suzuki, Kunihiro Kawai, Hiroshi Okazaki, Shoichi Narahashi, Takahiro Asai, Yukihiko Okumura
2017 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM) 61 - 63 2017.03
Joint Work
Research paper (international conference proceedings)
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Power amplifier configuration for Massive-MIMO transmitter
Yasunori Suzuki, Shoichi Narahashi
2016 22nd Asia-Pacific Conference on Communications (APCC) 38 - 43 2016.08
Joint Work
Research paper (international conference proceedings)
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Base station assisted communication system for achieving local-oscillator-less mobile stations
Atsushi Fukuda, Hiroshi Okazaki, Shoichi Narahashi
2016 IEEE International Symposium on Radio-Frequency Integration Technology (RFiT) 1 - 3 2016.08
Joint Work
Research paper (international conference proceedings)
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An estimation method of third-order PIM on coaxial cable assembly using one CW
Kunihiro Kawai, Atsushi Fukuda, Hiroshi Okazaki, Shoichi Narahashi
2016 IEEE International Symposium on Radio-Frequency Integration Technology (RFiT) 1 - 3 2016.08
Joint Work
Research paper (international conference proceedings)
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A Novel Beam Control Method and Configuration for Phased Array Antenna System Employing Frequency-Upconverted Local Signals with Phase Difference
福田敦史、岡崎浩司、楢橋祥一
Radio and Wireless Symposium 2016.01
Joint Work
Research paper (international conference proceedings)
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変調信号入力時における整流回路変換効率解析
榊裕翔、福田豪、吉田賢史、西川健二郎、川崎繁男、河合邦浩、岡崎浩司、楢橋祥一
電子情報通信学会論文誌 2015.12
Joint Work
Research paper (scientific journal)
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A New Area Formation Approach for Millimeter Wave Communication Systems Employing A Dielectric Waveguide
河合邦浩、高田卓馬、福田敦史、岡崎浩司、楢橋祥一
Proc. 45th European 2015.09
Joint Work
Research paper (international conference proceedings)
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A Phased Array Antenna System Employing Frequency-Upconverted Local Signals with Phase Difference
福田敦史、岡崎浩司、楢橋祥一
Radio-Frequency Integration Technology 2015.08
Joint Work
Research paper (international conference proceedings)
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An Integrated Configuration of Antennas and Filters for Front-End Module in Massive-MIMO Transmitter
鈴木恭宜、佐藤圭、角誠、福田敦史、楢橋祥一
Radio-Frequency Integration Technology 2015.08
Joint Work
Research paper (international conference proceedings)
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[Invited Paper] Recent activities of Japanese microwave industry
山中宏治、鈴木恭宜、楢橋祥一、他10名
IEICE 2015.07
Joint Work
Research paper (scientific journal)
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終端開放結合線路を外部整合回路に用いた任意電力分配比の広帯域ブランチラインカプラ
河合正、榎原晃、太田勲、佐藤圭、鈴木恭宜、岡崎浩司、楢橋祥一
電子情報通信学会論文誌 2014.12
Joint Work
Research paper (scientific journal)
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A Novel Wide Dynamic Range Rectifier Design For Wireless Power Transfer System
榊裕翔、黒岩史登、辻井優伸、村口昌史、西川健二郎、河合邦浩、岡崎浩司、楢橋祥一
2014 Asia-Pacific Microwave Conference 2014.11
Joint Work
Research paper (international conference proceedings)
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A Circuit Construction of Parallel Ring-Line Rat-Race Circuit with Very Loose Coupling Utilizing CRLH-TLs
河合正、大門洋輔、榎原晃、太田勲、佐藤圭、鈴木恭宜、岡崎浩司、楢橋祥一
2014 Asia-Pacific Microwave Conference, 2014.11
Joint Work
Research paper (international conference proceedings)
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RF Front-End Circuit Employing LC-Tank for Carrier Aggregation
河合邦浩、中島光雅、高儀雄太、岡崎浩司、楢橋祥一
2014 Asia-Pacific Microwave Conference, 2014.11
Joint Work
Research paper (international conference proceedings)
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Base Station Digital Predistortion Compensating for Frequency-Dependent IMD Components
鈴木恭宜、大河原純哉、水田信治、楢橋祥一
2014 Asia-Pacific Microwave Conference, 2014.11
Joint Work
Research paper (international conference proceedings)
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Parallel Ring-Lines Rat-Race Circuit with Very Loose Coupling Composite Right-/Left-Handed Transmission Lines
河合正、住友祐馬、榎原晃、太田勲、佐藤圭、鈴木恭宜、岡崎浩司、楢橋祥一
IEICE 2014.10
Joint Work
Research paper (scientific journal)
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Experimental Investigation on RF Characteristics of Cryogenically-Cooled 3W-Class Receiver Amplifier Employing GaN HEMT with Blue Light LED for Mobile Base Stations
鈴木恭宜、楢橋祥一、野島俊雄
IEICE 2014.10
Joint Work
Research paper (scientific journal)
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Broadband Branch-Line Coupler with Very Loose Coupling Utilizing Open/Short-Circuited Coupled-Transmission Lines
河合正、中島宣雄、榎原晃、太田勲、佐藤圭、鈴木恭宜、岡崎浩司、楢橋祥一
Proc. 44th European Microwave Conference 2014.10
Joint Work
Research paper (international conference proceedings)
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Tunable Resonator Employing Comb-shaped Transmission Line and Semiconductor Switches
河合邦浩、小泉大輔、岡崎浩司、楢橋祥一
IEICE 2014.08
Joint Work
Research paper (scientific journal)
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Center Frequency and Bandwidth Independently Tunable Filter Using MEMS Digitally Tunable Capacitors
河合邦浩、岡崎浩司、楢橋祥一
2014 XXXIth URSI General Assembly and Scientific Symposium 2014.08
Joint Work
Research paper (international conference proceedings)
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右手系/左手系複合線路を用いた広帯域小型ラットレース回路
住友祐馬、河合正、榎原晃、太田勲、佐藤圭、鈴木恭宜、岡崎浩司、楢橋祥一
電子情報通信学会論文誌 2013.12
Joint Work
Research paper (scientific journal)
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Numerical Estimation on Intermodulation Distortion of a High-Temperature Superconducting Dual-Band Bandpass Filter
佐藤圭、鈴木恭宜、高儀雄太、楢橋祥一
2013 Asia-Pacific Microwave Conference 2013.11
Joint Work
Research paper (international conference proceedings)
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Center Frequency and Bandwidth Tunable Filter Employing MEMS Digitally Tunable Capacitors
河合邦浩、岡崎浩司、楢橋祥一
2013 Asia-Pacific Microwave Conference 2013.11
Joint Work
Research paper (international conference proceedings)
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Parallel Ring-Lines Type Rat-Race Circuit for Loose Coupling Utilizing Composite Right-/Left-Handed Transmission Lines
河合正、住友祐馬、榎原晃、太田勲、佐藤圭、鈴木恭宜、岡崎浩司、楢橋祥一
Proc. 43rd European Microwave Conference 2013.10
Joint Work
Research paper (international conference proceedings)
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Broadside Coupling High-Temperature Superconducting Dual-Band Bandpass Filter
高儀雄太、佐藤圭、小泉大輔、楢橋祥一
IEICE 2013.08
Joint Work
Research paper (scientific journal)
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Reconfigurable RF Circuits for Future Multi-Mode Multi-Band Mobile Terminals
岡崎浩司、古田敬幸、河合邦浩、高儀雄太、福田敦史、楢橋祥一
2013 URSI International Symposium on Electromagnetic Theory 2013.05
Joint Work
Research paper (international conference proceedings)
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Compact tunable isolator with a variable capacitor
古田敬幸、福田敦史、岡崎浩司、楢橋祥一
IEICE 2013.01
Joint Work
Research paper (scientific journal)
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Compact Wideband Rat-Race Hybrid Utilizing Composite Right/Left-Handed Transmission Lines
住友祐馬、河合正、榎原晃、太田勲、佐藤圭、鈴木恭宜、岡崎浩司、楢橋祥一
2013 IEEE Radio and Wireless Symposium 2013.01
Joint Work
Research paper (international conference proceedings)
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Resonant Frequency and Bandwidth Tunable Ring Resonator Employing MEMS Tunable Capacitors
河合邦浩、岡崎浩司、楢橋祥一
2012 Asia-Pacific Microwave Conference 2012.12
Joint Work
Research paper (international conference proceedings)
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Novel Reconfigurable matching network for compact multi-band PA
古田敬幸、岡崎浩司、楢橋祥一
2012 IEEE International Conference on Wireless Information Technology and Systems 2012.11
Joint Work
Research paper (international conference proceedings)
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5-GHz-Band Center Frequency and Bandwidth Tunable Dual-Band Bandpass Filter
河合邦浩、岡崎浩司、楢橋祥一
Proc. 42nd European Microwave Conference 2012.10
Joint Work
Research paper (international conference proceedings)
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Experimental investigation of the relationship between cooling temperature and power handling capability of high-temperature superconducting dual-band bandpass filter
佐藤圭、高儀雄太、楢橋祥一、野島俊雄
Physics Procedia 36 (2012) 2012.09
Joint Work
Research paper (international conference proceedings)
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Parallel-planar high-temperature superconducting dual-band bandpass filter using double-sided conductors on a substrate
高儀雄太、佐藤圭、楢橋祥一
Physics Procedia 36 (2012) 2012.09
Joint Work
Research paper (international conference proceedings)
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Low-loss Matching Network Design for Band-switchable Multi-band Power Amplifier
福田敦史、古田敬幸、岡崎浩司、楢橋祥一、野島俊雄
IEICE 2012.07
Joint Work
Research paper (scientific journal)