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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 49  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
SAT, RCS
(Joint)
2022-08-25
09:50
Hokkaido
(Primary: On-site, Secondary: Online)
Communication Experiment with Super Pressure Balloon over Antarctica Using Iridium Satellite
Takana Kaho (Shonan Inst. Tech.), Yoshitaka Saito (JAXA), Yoshihiro Tomikawa (NIPR)
 [more]
RCC, WBS, SAT, MICT 2022-05-26
13:50
Online Online Communication Experiment over Antarctica using Iridium Satellite Short Burst Communication
Takana Kaho (Shonan Inst. of Tech.), Yoshitaka Saito (JAXA), Yoshihiro Tomikawa (NIPR) WBS2022-8 RCC2022-8 SAT2022-8 MICT2022-8
An experiment (LODEWAVE) was conducted from January to February 2022 to measure the atmospheric gravity wave over the An... [more] WBS2022-8 RCC2022-8 SAT2022-8 MICT2022-8
pp.34-39
MW 2022-03-03
14:25
Online Online Examination of Measurement Evaluation System of 2-input GaN Amplifier Using Vector Transceiver
Haruki Mori, Takato Suzuki, Takana Kaho (Shonan Inst. Tech.), Yuji Komatsuzaki, Kento Saiki, Koji Yamanaka (Mitsubishi Electric) MW2021-122
 [more] MW2021-122
pp.63-68
AP, WPT
(Joint)
2022-01-21
13:30
Tottori Kenmin-Fureai-Kaikan
(Primary: On-site, Secondary: Online)
Proposal on Novel Staircase Array Antenna Configuration utilizing Stacked Butler Matrix
Hideya So, Yoshitada Watanabe, Takana Kaho (SIT), Mizuki Suga, Takuto Arai, Yushi Shirato, Hideki Toshinaga, Daisei Uchida, Naoki Kita (NTT) AP2021-151
Massive Multiple-Input Multiple-Output (Massive MIMO), which uses a large number of antenna elements, has been investiga... [more] AP2021-151
pp.92-97
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
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