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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| ED, MW | 2024-01-26 14:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Invited Talk]
Research on Phased Array Antenna Device for Beyond 5G Takana Kaho, Hideya So, Koji Matsunaga (Shonan Inst. Tech.) |
[more] | |
| AP, RCS (Joint) |
2023-11-15 13:25 |
Kumamoto | Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
Performance Evaluation of Beam Search Scheme using Fast Beam Steering Hideya So, Kouki Namegaya (SIT), Kazuki Maruta (TUS), Takana Kaho (SIT)  RCS2023-156 |
This report proposes a multiple beam searches with fast beam steering within a single synchronization signal block (SSB)... [more] | RCS2023-156 pp.24-28 |
| MW, EMCJ, EST, IEE-EMC [detail] | 2023-10-20 09:40 |
Yamagata | Yamagata University (Primary: On-site, Secondary: Online) |
Evaluation of DPD Compensation and Modulation Bandwidth Dependence of GaN Doherty Amplifier Using 5G NR TDD Signals Ayano Yano, Takana Kaho (Shonan Inst. Tech.), Shuichi Sakata, Yuji Komatsuzaki, Koji Yamanaka (Mitsubishi Electric) EMCJ2023-58 MW2023-112 EST2023-85 |
We are researching broadband GaN amplifiers for base stations covering 4G/5G frequencies. We built a measurement system ... [more] | EMCJ2023-58 MW2023-112 EST2023-85 pp.119-124 |
| MW, EMCJ, EST, IEE-EMC [detail] | 2023-10-20 10:00 |
Yamagata | Yamagata University (Primary: On-site, Secondary: Online) |
Study on Efficiency Improvement of Dual-Input GaN Amplifier as Outphasing Amplifier Shinro Yatsuda, Rikito Matsuo, Takana Kaho (Shonan Inst.Tech.), Shuichi Sakata, Yuji Komatsuzaki, Koji Yamanaka (Mitsubishi Electric) EMCJ2023-59 MW2023-113 EST2023-86 |
We are developing a base station amplifier that covers a wide frequency range of 4G/5G by switching the Doherty and outp... [more] | EMCJ2023-59 MW2023-113 EST2023-86 pp.125-130 |
| AP | 2023-03-17 14:10 |
Toyama | Toyama Prefectural Civic Hall (Primary: On-site, Secondary: Online) |
Experimental Evaluation of Staircase Array Antenna employing Butler Matrix Hideya So, Takana Kaho (SIT), Yasuyoshi Yamamoto, Mizuki Suga, Yuta Takahashi, Yushi Shirato, Naoki Kita (NTT) AP2022-249 |
The authors have proposed a staircase array antenna consisting of a one-dimensional butler matrix and patch array antenn... [more] | AP2022-249 pp.87-92 |
| SANE, SAT (Joint) |
2023-03-02 11:40 |
Okinawa | (Primary: On-site, Secondary: Online) |
Altitude and Location Dependence of Iridium Positioning Error in Balloon Experiments Takato Suzuki, Takana Kaho (Shonan Inst. Tech.), Yoshitaka Saito, Masahiro Yamatani (JAXA), Yoshihiro Tomikawa (NIPR) SAT2022-61 |
We are conducting experiments to acquire data from sensors mounted on high-altitude balloons using short burst communica... [more] | SAT2022-61 pp.34-39 |
| PN | 2023-03-01 15:10 |
Okinawa | (Primary: On-site, Secondary: Online) |
[Invited Talk]
High-speed beam steering technology toward Beyond 5G Hideyuki Nosaka (Ritsumeikan Univ.), Takana Kaho (SIT), Tetsuya Kawanishi (Waseda Univ.) PN2022-46 |
Towards Beyond 5G systems, high-speed beam steering technology is required to realize innovative functions such as high-... [more] | PN2022-46 pp.23-27 |
| MW, ED | 2023-01-27 11:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
Measurement Evaluation of Bias Dependence of Single-Input Broadband GaN Amplifier Yuki Nakagawa, Takana Kaho (Shonan Inst. Tech.), Shuichi Sakata, Yuji Komatsuzaki, Koji Yamanaka (MELCO) ED2022-89 MW2022-148 |
We are researching a broadband GaN amplifier for 4G/5G base stations covering a 4GHz band from 800MHz to 4.8GHz. We aim ... [more] | ED2022-89 MW2022-148 pp.19-24 |
| MW, ED | 2023-01-27 15:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Invited Talk]
Requierements for sharing type 4G/5G base station transciever amplifiers Koji Yamanaka, Yuji Komatsuzaki, Shuichi Sakata, Kento Saiki (Mitsubishi Electric), Takana Kaho (SIT) ED2022-96 MW2022-155 |
In post-5G era (latter half of 2020s), mobile base-stations are assumed to be shared between mobile operators to reduce ... [more] | ED2022-96 MW2022-155 p.50 |
| AP, MW (Joint) |
2022-09-15 11:35 |
Ehime | The Museum of Art, EHIME (Primary: On-site, Secondary: Online) |
Examination of Wideband Measurement of Dual-input GaN Amplifier Using Vector Transceiver Takato Suzuki, Yahiro Nanba, Takana Kaho (Shonan Inst. Tech.), Shuichi Sakata, Yuji Komatsuzaki, Koji Yamanaka (MELCO) MW2022-75 |
We are researching a wideband dual-input one-output GaN amplifier for base stations that covers 4G / 5G frequencies. It ... [more] | MW2022-75 pp.36-41 |
| SAT, RCS (Joint) |
2022-08-25 09:50 |
Hokkaido | (Primary: On-site, Secondary: Online) |
Experimental Evaluation of Positioning Error of Super Pressure Balloon over Antarctica Using Iridium Satellite Takana Kaho, Takato Suzuki (Shonan Inst. Tech.), Yoshitaka Saito (JAXA), Yoshihiro Tomikawa (NIPR) SAT2022-28 |
[more] | SAT2022-28 pp.1-6 |
| 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 |
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