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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SANE, SAT (Joint) |
2025-03-05 13:50 |
Okinawa | Nago Civic Hall 【Tour in March 7th】 (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
Basic study on antenna for marine LPWA system using high altitude flying vehicle So Hasegawa, Keita Sekigami, Kaito Terasaka, Takahiro Ishii, Junya Takenaga, Hideya So, Takana Kaho (Shonan Inst. Tech.), Yasuo Suzuki, Shigeru Teruhi (NTT) |
[more] | |
| SANE, SAT (Joint) |
2025-03-05 14:05 |
Okinawa | Nago Civic Hall 【Tour in March 7th】 (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
Evaluation of seawater effects on antennas for marine LPWA systems using high-altitude flying vehicles Keita Sekigami, So Hasegawa, Kaito Terasaka, So Hideya, Takana Kaho (Shonan Inst. Tech.), Yasuo Suzuki, Shigeru Teruhi (NTT) |
[more] | |
| SANE, SAT (Joint) |
2025-03-05 14:20 |
Okinawa | Nago Civic Hall 【Tour in March 7th】 (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
Evaluation of seawater effects on 12GHz patch antennas for marine terminals using a high-altitude flying vehicle Takahiro Ishii, Keita Sekigami, Kaito Terasaka, So Hideya, Takana Kaho (Shonan Inst. Tech.), Kohei Suzaki (NTT) |
[more] | |
| SANE, SAT (Joint) |
2025-03-05 16:15 |
Okinawa | Nago Civic Hall 【Tour in March 7th】 (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
Thermal-fluid and electromagnetic field simulation evaluation of X-band staircase array antenna Junya Takenaga, Kaito Terasaka, Hideya So, Koji Matsunaga, Takana Kaho (Shonan Inst. Tech.) |
[more] | |
| SANE, SAT (Joint) |
2025-03-05 16:30 |
Okinawa | Nago Civic Hall 【Tour in March 7th】 (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
Temperature and vacuum testing of small barometers for stratospheric balloon Kaito Terasaka, Takana Kaho (Shonan Inst. Tech.), Yoshitaka Saito (JAXA) |
[more] | |
| SANE, SAT (Joint) |
2025-03-05 16:45 |
Okinawa | Nago Civic Hall 【Tour in March 7th】 (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
Estimating the altitude of a stratospheric balloon using time variations in latitude of Iridium satellite positioning Rikito Matsuo, Kaito Terasaka, Takana Kaho (Shonan Inst. Tech.), Yoshitaka Saito (JAXA), Yoshihiro Tomikawa (NIPR) |
[more] | |
| OFT, OCS, IEE-CMN, ITE-BCT, CQ (Joint) [detail] |
2024-11-07 10:35 |
Kochi | (Kochi) | [Invited Talk]
NTN's wireless physical layer research towards Beyond 5G/6G Takana Kaho, Hideya So (Shonan Inst. Tech.)  CQ2024-59 |
Beyond 5G/6G mobile communication systems aim to realize high-speed, high-capacity mobile communication services coverin... [more] | CQ2024-59 pp.12-15 |
| IN, RCS, NV (Joint) |
2024-05-30 10:25 |
Fukuoka | Fukuoka University (Fukuoka) | Evaluation of ACLR and Beam Detection Characteristics for Fast Beam Steering with Discrete Subcarrier Arrangement Hideya So (SIT), Kazuki Maruta (TUS), Takana Kaho (SIT) RCS2024-15 |
To reduce beam search time, this report proposes a novel beam search scheme using discrete subcarrier placement and fast... [more] | RCS2024-15 pp.7-12 |
| RCS, SR, SRW (Joint) |
2024-03-14 10:30 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Tokyo, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
A Study on Cell ID Detection Performance by Phase Rotation with Fast Beam Steering Kotaro Tanaka, Hideya So (SIT), Kazuki Maruta (TUS), Takana Kaho (SIT) SR2023-97 |
Beamforming using multiple antenna elements has been considered to increase high-speed wireless communications, but it r... [more] | SR2023-97 pp.49-51 |
| SAT, SANE (Joint) |
2024-02-09 11:20 |
Kagoshima | AmaHome PLAZA (Amami City Shimin Koryu Center) (Kagoshima, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
Time-varying investigation of Iridium satellite positioning of a balloon during stratospheric flight over Antarctica Rikito Matsuo, Takana Kaho (Shonan Inst. Tech.), Yoshitaka Saito, Masahiro Yamatani (JAXA), Yoshihiro Tomikawa (NIPR) SAT2023-72 |
We are conducting an experiment to acquire data from sensors mounted on an atmospheric balloon flying in the stratospher... [more] | SAT2023-72 pp.69-71 |
| SAT, SANE (Joint) |
2024-02-09 11:35 |
Kagoshima | AmaHome PLAZA (Amami City Shimin Koryu Center) (Kagoshima, Online) (Primary: On-site, Secondary: Online) |
[Short Paper]
Evaluation of Beam Steering Angle of 64-Element Staircase Array Antenna Using Patch Antenna with Parasitic Elements Ayano Yano, Hideya So, Takana Kaho (Shonan Inst. Tech.) SAT2023-73 |
Massive MIMO using multiple antenna elements is being considered to increase the speed and capacity of wireless communic... [more] | SAT2023-73 pp.72-74 |
| SAT, SANE (Joint) |
2024-02-09 15:35 |
Kagoshima | AmaHome PLAZA (Amami City Shimin Koryu Center) (Kagoshima, Online) (Primary: On-site, Secondary: Online) |
Study on estimating balloon position in the stratosphere using time variation of Iridium satellite positioning information Takana Kaho (Shonan Inst. Tech.), Yoshitaka Saito, Masahiro Yamatani (JAXA), Yoshihiro Tomikawa (NIPR) SAT2023-78 |
We are conducting an experiment to acquire sensor data mounted on a high-altitude balloon flying in the stratosphere usi... [more] | SAT2023-78 pp.93-98 |
| ED, MW | 2024-01-26 14:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Tokyo, Online) (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.) ED2023-80 MW2023-172 |
Beyond 5G mobile communication systems are expected to use higher frequencies, and base station equipment is required to... [more] | ED2023-80 MW2023-172 pp.75-80 |
| AP, RCS (Joint) |
2023-11-15 13:25 |
Kumamoto | Kumamoto Prefectural Workers' Welfare Hall (Kumamoto, Online) (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 (Yamagata, Online) (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 (Yamagata, Online) (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 (Toyama, Online) (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 | (Okinawa, Online) (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 | (Okinawa, Online) (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. (Tokyo, Online) (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 |
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