Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
MW |
2021-12-16 14:50 |
Kanagawa |
Kawasaki City Industrial Promotion Hall (Primary: On-site, Secondary: Online) |
Evaluation of distortion compensation characteristics of wideband GaN amplifier with multi-carrier input Haruki Mori, Kouki Hattori, Takana Kaho (Shonan Inst. Tech.), Yuji Komatsuzaki, Kento Saiki, Koji Yamanaka (Mitsubishi Electric) MW2021-91 |
[more] |
MW2021-91 pp.37-42 |
AP, SANE, SAT (Joint) |
2021-07-28 14:30 |
Online |
Online |
LOng-Duration balloon Experiment of gravity WAVE over Antarctica (LODEWAVE)
-- Data transmission from super-pressure balloons using Iridium satellites -- Yoshitaka Saito (JAXA), Yoshihiro Tomikawa (NIPR), Isao Murata (Tohoku Univ.), Takana Kaho (SIT), Takashi Kanno (MEC) SAT2021-21 |
(To be available after the conference date) [more] |
SAT2021-21 pp.7-11 |
MW (2nd) |
2020-05-13 - 2020-05-15 |
Overseas |
CU, Bangkok, Thailand (Postponed) |
CMOS Vector-Sum Phase Shifter With Novel Vector Summer Takana Kaho (Shonan Inst. of Tech.), Kotaro Takamiya, Ramesh Pokharel Kumar (Kyushu University) |
A quasi-millimeter CMOS phase shifter which employed a vector sum structure is designed. It consists of an active balun,... [more] |
|
SRW |
2019-01-15 13:25 |
Kanagawa |
Mitsubishi Electric (Oofuna) |
Blind frequency-dependent IQ imbalance compensation for single carrier systems Hideki Mori, Tadao Nakagawa, Naoto Sasaoka (Tottori Univ.), Doohwan Lee, Takana Kaho (NTT) SRW2018-50 |
As the frequency bandwidth in wireless communications is wide, impairments of analog circuits of transceivers including ... [more] |
SRW2018-50 pp.25-29 |
SR, RCS (Joint) (2nd) |
2018-10-31 15:00 |
Overseas |
Mandarin Hotel, Bangkok, Thailand |
[Invited Talk]
An Experiment of 100 Gbps Wireless Transmission Using OAM-MIMO Multiplexing in 28 GHz Doohwan Lee, Sasaki Hirofumi, Hiroyuki Fukumoto, Yasunori Yagi, Takana Kaho, Takashi Shimizu (NTT Corp.) |
[more] |
|
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 |
RCS, SR, SRW (Joint) |
2018-03-02 11:45 |
Kanagawa |
YRP |
Blind frequency-dependent IQ imbalance compensation using constant norm algorithm for OFDM systems Ryoto Hamabe, Tadao Nakagawa (Tottori Univ.), Doohwan Lee, Takana Kaho (NTT) SRW2017-90 |
As the frequency bandwidth in wireless communications are wide, impairments of analog circuits of transceivers including... [more] |
SRW2017-90 pp.105-108 |
ED, MW |
2018-01-26 13:50 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
An experimental study on beam focusing effect using dielectric lens for OAM multiplexing Hiroyuki Fukumoto, Doohwan Lee, Hirofumi Sasaki, Takana Kaho, Hiroyuki Shiba (NTT) ED2017-103 MW2017-172 |
[more] |
ED2017-103 MW2017-172 pp.53-57 |
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 |
2016-12-15 10:00 |
Kanagawa |
National Defense Academy |
Characteristic of Non-specular Scattering on Outside Surface of Constructions at 25GHz Hao Liu, Jun-ichi Takada, Kentaro Saito (Tokyo Tech), Yo Yamaguchi, Maki Arai, Takana Kaho (NTT) MW2016-135 |
In order to achieve the high speed wireless communications for the 5th generation mobile networks, quasi-millimeter wave... [more] |
MW2016-135 pp.19-23 |
MW (2nd) |
2016-06-09 - 2016-06-11 |
Overseas |
KMUTNB, Bangkok, Thailand |
Design of CMOS Vector Sum Phase Shifter Shungo Ishii, Takana Kaho, Ramesh Pokharel (Kyushu Univ.) |
A 3.6-4.2 GHz CMOS phase shifter which employed a vector sum structure is designed. It consists of an active balun, OTA ... [more] |
|
RCS, CCS, SR, SRW (Joint) |
2016-03-04 14:30 |
Tokyo |
Tokyo Institute of Technology |
[Invited Lecture]
Broadband Spectrum Sensing Platform based on Received Waveform Cross-correlation using Distributed Sensors Doohwan Lee, Takayuki Yamada, Hiroyuki Shiba, Yo Yamaguchi, Takana Kaho, Tadao Nakagawa, Kazuhiro Uehara (NTT) SR2015-117 |
Rapid increase in mobile traffic due to the spread of smartphones will cause the frequency shortage. Frequency range fro... [more] |
SR2015-117 p.171 |
MW, AP (Joint) |
2015-09-17 14:20 |
Tochigi |
Oyama National College of Tech. |
[Invited Lecture]
A Study on an RF equipment of a massive MIMO base station using highly integrated RF front-end MMICs Yo Yamaguchi, Takana Kaho, Tadao Nakagawa (NTT) AP2015-84 MW2015-91 |
In a fifth generation mobile communication system, it is studied that the small cell base stations carry out data commun... [more] |
AP2015-84 MW2015-91 pp.27-30(AP), pp.25-28(MW) |
EMT, MW, OPE, MWP, EST, IEE-EMT [detail] |
2015-07-16 13:00 |
Hokkaido |
Kushiro City Lifelong Learning Center |
A Study of a 400MHz-6GHz High Linearity GaN Low Noise Amplifier Yo Yamaguchi, Takana Kaho, Munenari Kawashima, Kazuhiro Uehara (NTT) EMT2015-12 MW2015-50 OPE2015-24 EST2015-16 MWP2015-15 |
It is necessary to know the status of frequency usage for white space usage. Therefore, it is necessary that the low noi... [more] |
EMT2015-12 MW2015-50 OPE2015-24 EST2015-16 MWP2015-15 pp.23-27 |
MW |
2015-06-25 14:05 |
Kanagawa |
Institute of Industrial Promotion Kawasaki |
A study on wideband multilayer diplexer and triplexer Shinpei Oshima (NIT, Oyama College), Takana Kaho, Yo Yamaguchi, Tadao Nakagawa (NTT) MW2015-40 |
[more] |
MW2015-40 pp.13-18 |
SR |
2014-10-31 13:00 |
Overseas |
I2R, Singapore |
[Technology Exhibit]
Broadband Spectrum Sensing Platform Based on Received Waveform Cross-correlation using Distributed Sensors Takayuki Yamada, Doohwan Lee, Hiroyuki Shiba, Yo Yamaguchi, Takana Kaho, Tadao Nakagawa, Kazuhiro Uehara (NTT) SR2014-88 |
Rapid increase in mobile traffic due to the spread of smartphones will cause the frequency shortage. Frequency range fro... [more] |
SR2014-88 pp.169-170 |
MW |
2014-05-23 16:15 |
Kyoto |
Doshisha Univ. |
A Low Phase Noise CMOS Ring Oscillator using Phase Modulation and Pulse Injection Techniques Khalil Yousef (E-JUST), Hongting Jia (Kyushu University), Ahmed Allam (E-JUST), Awinash Anand, Ramesh Pokharel (Kyushu University), Takana Kaho (NTT) MW2014-40 |
This paper presents a novel design of a ring oscillator (RO) producing eight phases output with accurate signal phase ad... [more] |
MW2014-40 pp.95-98 |
NS, IN (Joint) |
2014-03-06 09:30 |
Miyazaki |
Miyazaki Seagia |
A study on a broadband spectrum sensing system Hiroyuki Shiba, Yo Yamaguchi, Takayuki Yamada, Takana Kaho, Tadao Nakagawa (NTT) IN2013-152 |
[more] |
IN2013-152 pp.53-58 |
RCS, SR, SRW (Joint) |
2014-03-03 13:30 |
Tokyo |
Waseda Univ. |
[Invited Lecture]
Performance Evaluation of a Broadband Spectrum Sensing Platform Hiroyuki Shiba, Yo Yamaguchi, Takayuki Yamada, Takana Kaho, Hideki Toshinaga, Tadao Nakagawa, Kazuhiro Uehara (NTT) SR2013-97 |
[more] |
SR2013-97 pp.9-14 |
|