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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2024-03-15 14:00 |
Fukui | UNIVERSITY OF FUKUI (Primary: On-site, Secondary: Online) |
Eigenvalue Analysis of Radio Propagation Utilizing Hollow Cylindrical Concrete Structures in Sea Water Nozomu Ishii, Naoki Kuzuu (Niigata Univ.), Masaharu Takahashi (Chiba Univ.), Qiaowei Yuan (Tohoku Inst. Tech.), Qiang Chen (Tohoku Univ.), Hiroshi Yoshida (JAMSTEC)  AP2023-217 |
This paper reports the results of an eigenmode analysis of radio propagation using a hollow cylindrical concrete structu... [more] | AP2023-217 pp.91-96 |
| EST | 2024-01-25 13:00 |
Kyoto | Kyoto University ROHM Plaza (Primary: On-site, Secondary: Online) |
Analysis of Metasurfaces Using Bidirectional Eigenmode Propagation Method Using Finite Element Method with Periodic Boundary Condition Masaya Kitani, Taiki Matsuzaki, Akito Iguchi, Yasuhide Tsuji (Muroran Inst. Tech.) EST2023-104 |
Metasurfaces are expected to be used in various applications because of the possibility to realize unique properties tha... [more] | EST2023-104 pp.30-34 |
| OFT | 2023-10-12 10:10 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Real time detection of liquid using hetero-core optical fiber Kenta Suzuki, Shoichi Kubodera (Soka Univ.) OFT2023-16 |
In this paper, we evaluate a hetero-core optical fiber liquid detection sensor with a hetero-core insertion length of 9.... [more] | OFT2023-16 pp.5-6 |
| SRW, MICT, WBS | 2023-07-20 11:25 |
Niigata | Niigata Univ. TOKIMATE (Primary: On-site, Secondary: Online) |
A Study on Orthogonal Directional MIMO Transmission by Using Dipole Antenna Array with Different Element Lengths Maki Arai (Tokyo Univ. of Science) WBS2023-14 SRW2023-12 MICT2023-11 |
To increase the channel capacity of wireless communications, a MIMO (Multiple-Input Multiple-Output) technology is impor... [more] | WBS2023-14 SRW2023-12 MICT2023-11 pp.7-12 |
| RCS | 2023-06-14 16:25 |
Hokkaido | Hokkaido University, and online (Primary: On-site, Secondary: Online) |
Performance Improvement of Multiuser Massive MIMO Null-Space Expansion by Multi-Antenna Receiver Beamforming Yuki Sasaki, Kazuki Maruta (Tokyo Univ. of Science) RCS2023-43 |
(To be available after the conference date) [more] | RCS2023-43 pp.87-92 |
| RCS | 2023-06-15 10:30 |
Hokkaido | Hokkaido University, and online (Primary: On-site, Secondary: Online) |
PAPR Reduction Method Utilizing Difference in Eigenvalues Among Spatial Channels in Uplink Eigenmode Massive MIMO Transmission Yuta Abekura (Tokyo Univ. of Science), Satoshi Suyama, Satoshi Nagata (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-52 |
In this paper, we propose a peak-to-average power ratio (PAPR) reduction method utilizing difference in eigenvalues amon... [more] | RCS2023-52 pp.141-146 |
| AP | 2022-02-18 09:25 |
Online | Online | A Consideration of H-shaped-slot Patch Antenna with 3rd Harmonic Termination using Characteristic Mode Analysis Syunya Ban, Hayata Hirose (Nagoya Inst. of Tech.), Shinji Hara (Nagoya Univ.), Hiroshi Hirayama (Nagoya Inst. of Tech.) AP2021-167 |
In this paper, an H-shape slot patch antenna designed at 5.8 GHz with F-class load impedance for microwave power transfe... [more] | AP2021-167 pp.50-54 |
| RCS | 2021-10-21 14:50 |
Online | Online | [Invited Talk]
Generalization of a joint transmit-receive diversity and its application to multi-user MIMO communications Fumiyuki Adachi, Ryo Takahashi (Tohoku Univ.) RCS2021-126 |
In this paper, joint transmit-receiver diversity (JTRD) is presented, which jointly perform transmit diversity and recei... [more] | RCS2021-126 pp.49-54 |
| RCS, SR, NS, SeMI, RCC (Joint) |
2021-07-14 09:50 |
Online | Online | A Study on The Effect of Correlated Fading on Joint Transmit-receive Diversity and MIMO Spatial Multiplexing Fumiyuki Adachi, Ryo Takahashi (Tohoku Univ.) RCS2021-79 |
Joint transmit-receive diversity (JTRD) is one of diversity techniques to mitigate the degradation of communication qual... [more] | RCS2021-79 pp.13-18 |
| RCS, SR, NS, SeMI, RCC (Joint) |
2021-07-15 09:00 |
Online | Online | Estimation method for channel quality of TDD SVD-MIMO Kiminobu Makino, Takahiro Sato, Fumito Ito, Takayuki Nakagawa, Naohiko Iai (NHK) RCS2021-85 |
This paper proposes an estimation method for channel quality of TDD (Time Division Duplex) SVD (Singular Value Decomposi... [more] | RCS2021-85 pp.39-44 |
| EMCJ, MICT (Joint) |
2021-03-05 09:25 |
Online | Online | Experimental study of signal application method using add circuit in mode-division multiplexed transmission method Takuya Sato, Tohlu Matsushima, Yuki Fukumoto (Kyutech) EMCJ2020-73 |
In high-speed wired communications, studies are being conducted to increase the transmission capacityby using multiple l... [more] | EMCJ2020-73 pp.7-12 |
| EST | 2021-01-22 16:00 |
Online | Online | A technique for calculating eigenmodes of an optical waveguide by the envelope compact FDTD method Jun Shibayama, Hiroki Tanaka, Junji Yamauchi, Hisamatsu Nakano (Hosei Univ.) EST2020-78 |
The purpose of this article is to propose a technique for calculating eigenmodes of optical waveguides, in which the com... [more] | EST2020-78 pp.129-133 |
| OCS, OFT, OPE (Joint) [detail] |
2020-02-28 09:30 |
Okinawa | Okinawa Jichikaikan | Generation of exact eigen-modes by using auto-cloning photonic crystal for mode division multiplexing Hibiki Satoyoshi, Hiroshi Takahashi (Sophia Univ.) OCS2019-82 OFT2019-65 OPE2019-105 |
As a kind of mode-division multiplexing, a method using exact eigen-modes in few mode optical fiber for transmission cha... [more] | OCS2019-82 OFT2019-65 OPE2019-105 pp.23-28(OCS), pp.29-34(OFT), pp.35-40(OPE) |
| EMCJ, MW, EST, IEE-EMC [detail] | 2019-10-24 09:45 |
Miyagi | Tohoku Gakuin University(Conf. Room 2, Eng. Bldg. 1) | Excitation method of mode-division multiplexed transmission in 4-wire STP cable using transformer Takuya Sato, Tohlu Matsushima, Yuki Fukumoto (Kyutech) EMCJ2019-37 MW2019-66 EST2019-45 |
In a cable transmission system, we usually use differential mode applying opposit voltages to two wires. When we conside... [more] | EMCJ2019-37 MW2019-66 EST2019-45 pp.7-12 |
| EMCJ, EMD, WPT, PEM (Joint) [detail] |
2019-07-19 15:35 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Circuit Modeling of a Wireless Power Transfer System by the Impedance Expansion Method Nozomi Haga (Gunma Univ.), Masaharu Takahashi (Chiba Univ.) WPT2019-24 |
The impedance expansion method (IEM) is a circuit modeling technique for electrically very small devices based on the me... [more] | WPT2019-24 pp.13-17 |
| AP | 2018-12-13 15:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Study on Source Reconstruction Method for Array Antenna Using Eigenmode Current Keisuke Konno, Qiang Chen (Tohoku Univ.) AP2018-150 |
In this report, a source reconstruction method for array antennas using eigenmode currents is presented. The eigenmode c... [more] | AP2018-150 pp.27-31 |
| AP (2nd) |
2018-12-06 15:35 |
Kagoshima | Amami-city AiAi Hiroba | Experimental evaluation of mode selection method suitable for dual circular polarized OAM transmission Kazunori Yuri, Naoki Honma (Iwate Univ.) |
The authors have proposed a mode selection method to improve the achievable rate of an analog orbital angular momentum (... [more] | |
| EST, MW, OPE, MWP, EMT, IEE-EMT, THz [detail] | 2018-07-19 16:45 |
Hokkaido | A Study on Guided-Mode Analysis of Periodic Waveguides Based on Differential Theory Koki Watanabe, Kamin Kangkarn (Fukuoka Inst. Technol.) EMT2018-20 MW2018-35 OPE2018-23 EST2018-18 MWP2018-19 |
This study deals with accurate numerical approaches for analyzing the guided-mode propagating in periodic waveguides (fo... [more] | EMT2018-20 MW2018-35 OPE2018-23 EST2018-18 MWP2018-19 pp.73-76 |
|
| RCS, SR, SRW (Joint) |
2018-02-28 09:00 |
Kanagawa | YRP | A Distributed Antenna Downlink System using Linearly Precoded MU-MIMO Nobuaki Shimakawa, Yasunori Iwanami (N.I.T.) RCS2017-317 |
Recently, Muti-User MIMO (MU-MIMO) downlink system which uses multiple antennas at Base Station (BS) and accommodates mu... [more] | RCS2017-317 pp.1-6 |
| WPT, EMCJ (Joint) |
2017-11-21 13:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Circuit Modeling of a Wireless Power Transfer System by the Impedance Expansion Method Nozomi Haga (Gunma Univ.), Masaharu Takahashi (Chiba Univ.) WPT2017-48 |
The impedance expansion method (IEM), which was previously proposed by the authors, is a circuit-modeling technique for ... [more] | WPT2017-48 pp.21-26 |
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