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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 27件中 1~20件目  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
MW, WPT 2020-04-23
14:15
Tokyo Kikai-Shinko-Kaikan Bldg Investigation of Rectifier Operation with Harmonic Controlled Input Signals towards Pulse Modulation WiCoPT System
Runyuan Li, Satoshi Yoshida (Kagoshima Univ), Yasunori Suzuki, Hiroshi Okazaki (NTT DOCOMO), Kenjiro Nisikawa (Kagoshima Univ)
 [more]
EMCJ, IEE-EMC 2019-12-13
13:35
Aichi Chukyo University Calculation Method for RF EMF Exposure from Base Stations Installed Underground
Junji Higashiyama (NTT DOCOMO), Teruo Onishi, Tomoaki Nagaoka (NICT), Yasunori Suzuki (NTT DOCOMO) EMCJ2019-75
In order to evaluate the RF exposure from base station installed underground, a calculation formula applying a correctio... [more] EMCJ2019-75
pp.1-6
MW, ICD 2019-03-14
15:40
Okinawa   Wide dynamic range rectifier circuit with varactor tuning technique
Ayako Suzuki, Koshi Hamano, Hayato Shimizu (Kagoshima Univ.), Hiroshi Okazaki, Kunihiro Kawai, Atsushi Fukuda, Yasunori Suzuki (NTT DOCOMO), Kenjiro Nishikawa (Kagoshima Univ.) MW2018-166 ICD2018-110
 [more] MW2018-166 ICD2018-110
pp.55-59
RCS, SR, SRW
(Joint)
2019-03-08
16:30
Kanagawa YRP [Encouragement Talk] System Development on 16-beam Spatial-Multiplexing for High SHF Wide-band Massive MIMO in 5G
Hiroki Iura, Hiroshi Nishimoto, Tasuku Kuriyama, Hideyuki Nakamizo, Daichi Uchino, Naofumi Iwayama, Akihiro Okazaki (Mitsubishi Electric), Nobuhide Nonaka, Satoshi Suyama, Jun Mashino, Yasunori Suzuki, Tetsuro Imai (NTT docomo), Atsushi Okamura (Mitsubishi Electric), Yukihiko Okumura (NTT docomo) RCS2018-332
Recently, mobile communication systems for the fifth generation (5G) in higher frequency bands have been extensively stu... [more] RCS2018-332
pp.261-266
AP, MW
(Joint)
2018-09-20
14:30
Tokyo Tokyo Tech A Study of Quasi-Millimeter Wave Transceiver Frontend Module
Takana Kaho, Yo Yamaguchi, Hiroyuki Shiba (NTT), Yasunori Suzuki, Hiroshi Okazaki (NTT DOCOM) MW2018-59
 [more] MW2018-59
pp.1-6
AP, MW
(Joint)
2018-09-21
10:20
Tokyo Tokyo Tech A study of statistical property of intermodulation distortion components generating by power amplifier
Yasunori Suzuki, Hiroshi OKazaki (NTT DOCOMO) MW2018-64
This paper presents a statistical property of intermodulation distortion components generating by power amplifier when i... [more] MW2018-64
pp.29-34
AP, MW
(Joint)
2017-09-21
14:25
Saitama Saitama University A Study of Quasi-Millimeter Wave Integrated Front-End Module Including Antenna and Filter
Yasunori Suzuki, Kei Satoh, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO), Takana Kaho, Yo Yamaguchi, Maki Arai, Hiroyuki Shiba (NTT) MW2017-69
 [more] MW2017-69
pp.5-9
AP, MW
(Joint)
2017-09-21
14:50
Saitama Saitama University A Study of Quasi-Millimeter Wave Frontend ICs and Modules
Takana Kaho, Yo Yamaguchi, Maki Arai, Hiroyuki Shiba (NTT), Yasunori Suzuki, Kei Sato, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2017-70
Application of Massive MIMO and beamforming technology using array antennas in the quasi-millimeter wave band is being ... [more] MW2017-70
pp.11-15
MW
(2nd)
2017-06-14
- 2017-06-16
Overseas KMUTT, Bangkok, Thailand 28 GHz Band Power Amplifier for Massive MIMO Transmitter
Yasunori Suzuki, Kunihiro Kawai, Hiroshi Okazaki (DOCOMO)
This paper presents experimental results of 28 GHz band power amplifier for Massive MIMO transmitter. The power amplifie... [more]
MW, AP
(Joint)
2015-09-17
13:55
Tochigi Oyama National College of Tech. [Invited Lecture] RF front-end configuration of Massive-MIMO base station
Yasunori Suzuki, Kei Satoh, Makoto Sumi, Atsushi Fukuda, Shoichi Narahashi (NTT DOCOMO) AP2015-83 MW2015-90
This paper presents an overview of requirements and technical issues regarding a RF front-end module for Massive-MIMO ba... [more] AP2015-83 MW2015-90
pp.21-25(AP), pp.19-23(MW)
AP, MW
(Joint)
2014-09-18
09:30
Tokyo Tokyo Institute of Technology, Ookayama Campus [Invited Lecture] A Basic Study on Quad-band Bandpass Filter with Line Structure Comprising Cascade Connection of CRLH-TL Cells Having Two Different Element Values
Kei Satoh, Yasunori Suzuki, Yuta Takagi, Shoichi Narahashi (NTT DOCOMO) AP2014-91 MW2014-84
This paper presents a basic study on a quad-band bandpass filter (QBPF) with a line structure comprising cascade connect... [more] AP2014-91 MW2014-84
pp.1-4
MW 2014-05-22
09:30
Kyoto Doshisha Univ. A Circuit Construction of Parallel Ring-Lines Type Rat-Race Circuit with Very Loose Coupling Utilizing Composite Right-/Left-Handed Transmission Lines
Yousuke Daimon, Tadashi Kawai, Akira Enokihara, Isao Ohta (Univ. of Hyogo), Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2014-25
 [more] MW2014-25
pp.7-12
MW 2014-03-04
11:50
Ehime Ehime University Design of Broadband Branch-Line Hybrid with Loose Coupling Utilizing Open-/Short-Circuited Coupled Transmission Lines
Nobuo Nakajima, Tadashi Kawai, Akira Enokihara, Isao Ohta (Univ. of Hyogo), Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2013-201
This paper describes broadband branch-line hybrids with loose coupling factors utilizing open-/short-circuited coupled t... [more] MW2013-201
pp.23-27
MW 2013-11-21
10:00
Kagoshima Kagoshima Prefectural Culture Center Dual-Band Linearization of Digital Predistorter Compensating Frequency-Dependent IMD components
Yasunori Suzuki, Junya Ohkawara, Shoichi Narahashi (DOCOMO) MW2013-132
This paper presents a dual-band digital predistortion linearizer (DPDL) compensating frequency-dependent imtertmodualtio... [more] MW2013-132
pp.5-10
MW, AP
(Joint)
2013-09-13
16:15
Tokyo NHK Science Tech. Research Lab. Super High Bit Rate Mobile Future Radio Access System using SHF/EHF Bands
Yukihiko Okumura, Shoichi Narahashi, Tetsuro Imai, Satoshi Suyama, Hiroshi Okazaki, Yasunori Suzuki (NTT DOCOMO) MW2013-99
In this report, in order to realize future super high bit rate and high capacity mobile communication network, on the pr... [more] MW2013-99
pp.65-70
MW 2012-12-13
16:15
Yamanashi Univ. of Yamanashi Parallel-Ring-Type Rat-Race Circuit for Loose Coupling Utilizing Composite Right/Left-Handed Transmission Lines
Yuma Simitomo, Tadashi Kawai, Akira Enokihara, Isao Ohta (Univ. of Hyogo), Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2012-132
This paper treats a parallel-ring-type rat-race circuit for loose coupling utilizing composite right-/left-handed transm... [more] MW2012-132
pp.31-36
MW 2012-03-02
13:00
Saga Saga University High Power Operation for Broadband Branch-Line Coupler with Coupled Lines
Tadashi Kawai, Toshiki Hayashi, Akira Enokihara, Isao Ohta (Univ. of Hyogo), Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2011-184
 [more] MW2011-184
pp.91-95
NS, RCS
(Joint)
2011-12-16
16:20
Yamaguchi Yamaguchi University A PAPR reduction method on digital predistortion linearizer for compensating frequency dependent distortion components
Junya Ohkawara, Yasunori Suzuki, Shoichi Narahashi (NTT DOCOMO) RCS2011-263
This paper proposes a peak-to-average power ratio (PAPR) reduction method applied to a digital predistortion linearizer ... [more] RCS2011-263
pp.183-186
EMD 2010-11-12
11:45
Overseas Xi'an Jiaotong University Research of high reliability of noble metal slip-ring for supply of small electric power
Yasunori Suzuki, Noboru Morita, Takahiro Ueno, Koichiro Sawa (Nippon Inst. of Tech.), Kaoru Endo (Japan Servo) EMD2010-109
 [more] EMD2010-109
pp.175-178
EMD 2010-03-05
13:30
Kanagawa Yokohama National University Effect of Ni Plating Thickness on Contact Reliability in a Small Srip-ring System for Electric Power Supply
Yasunori Suzuki, Koichiro Sawa, Takahiro Ueno, Noboru Morita (Nippon Inst. of Tech.) EMD2009-129
In this study, contact reliability and long lifetime have been investigated in Au (Ni base) plated slip-ring and Ag-Pd b... [more] EMD2009-129
pp.9-12
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