Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
MW |
2024-02-29 13:50 |
Okayama |
Okayama Prefectural University (Primary: On-site, Secondary: Online) |
Observation of WPT spectrum at 2.4 GHz band and 5 GHz band Takashi Shiba, Tomoyuki Furuichi, Noriharu Suematsu (Tohoku Univ.) MW2023-180 |
Usecase of Wireless Power Transfer (WPT) system becomes wider because of its convenience. 920MHz, 2.4GHz, 5GHz bands are... [more] |
MW2023-180 pp.31-36 |
SAT, SANE (Joint) |
2024-02-08 10:50 |
Kagoshima |
AmaHome PLAZA (Amami City Shimin Koryu Center) (Primary: On-site, Secondary: Online) |
Basic study of Q/V-band on-board DBF antenna subsystem for LEO constellation Noriharu Suematsu, Tomoyuki Furuichi, Satoshi Tsukamoto (Tohoku Univ.) SAT2023-62 |
For future Japanese Low Earth Orbit (LEO) constellation satellite communication, explore of new frequency band (Q/V-band... [more] |
SAT2023-62 pp.18-22 |
SIP, IT, RCS |
2024-01-19 10:20 |
Miyagi |
(Primary: On-site, Secondary: Online) |
Experimental Results of a Channel Sounder for Underwater Acoustic Communications in Sharrow Sea Environment Kouichi Hashimoto, Taichi Fujita, Takumi Yoshimura, Hiroshi Kubo (Ritsumeikan Univ.) IT2023-58 SIP2023-91 RCS2023-233 |
Doubly-selectivity of underwater acoustic communications (UWACs) can be measured by channel sounders, which estimate tim... [more] |
IT2023-58 SIP2023-91 RCS2023-233 pp.151-156 |
UWT (2nd) |
2023-11-27 14:50 |
Shiga |
Ritsumeikan University Biwako-Kusatsu Campus (BKC) |
[Invited Talk]
A Channel Sounder for Underwater Acoustic Communications and its Experimental Results in Sharrow Sea Environment Hiroshi Kubo, Kouichi Hashimoto, Taichi Fujita, Takumi Yoshimura (Ritsumeikan Univ.) |
Doubly-selectivity of underwater acoustic communications (UWACs) can be measured by channel sounders, which estimate tim... [more] |
|
AP, RCS (Joint) |
2023-11-17 11:25 |
Kumamoto |
Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
[Encouragement Talk]
Differential OFDM for Underwater Acoustic Communications and its Experimental Results in Sharrow Sea Environment Hiroshi Kubo, Taichi Fujita, Kouichi Hashimoto, Takumi Yoshimura (Ritsumeikan Univ.) RCS2023-172 |
It is well-known that underwater acoustic communications (UWACs) play an important role for underwater mobile communicat... [more] |
RCS2023-172 pp.101-106 |
EST, MW, EMT, OPE, MWPTHz, IEE-EMT [detail] |
2023-07-20 09:10 |
Hokkaido |
Muroran Institute of Technology (Primary: On-site, Secondary: Online) |
A Basic Architecture Design of Direct Digital RF DBF Transceiver for Q/V-Band On-Board Unit Noriharu Suematsu, Tomoyuki Furuichi, Satoshi Tsukamoto (Tohoku Univ) EMT2023-22 MW2023-40 OPE2023-22 EST2023-22 MWPTHz2023-18 |
This paper describes a transceiver design of Q/V(40/50 GHz)-band DBF antenna for low earth orbit (LEO) constellation on-... [more] |
EMT2023-22 MW2023-40 OPE2023-22 EST2023-22 MWPTHz2023-18 pp.71-75 |
MW |
2023-03-03 13:00 |
Tottori |
Tottori Univ. (Primary: On-site, Secondary: Online) |
A Radio Wave Environment Measurement in Dense Environment using Real-Time Wideband Spectrum Monitor Tomoyuki Furuichi, Takashi Shiba (Tohoku Univ.), Youhei Kubota, Ryo Koike, Kouhei Hanzawa (TMEJ), Noriharu Suematsu (Tohoku Univ.) MW2022-175 |
In an environment where multiple different wireless systems, such as wireless IoT, coexist in a narrow space such as a f... [more] |
MW2022-175 pp.103-107 |
MW, ED |
2023-01-27 09:35 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
A Calibration method for RF Spectrum Regeneration Using Direct RF Undersampling at Different Sampling Frequency Multi-path Takashi Shiba, Tomoyuki Furuichi, Noriharu Suematsu (Tohoku Univ.) ED2022-86 MW2022-145 |
A direct RF undersampling method is an important technique for simple circuits and devices because sampling frequency of... [more] |
ED2022-86 MW2022-145 pp.1-6 |
SR, UWT (Joint) |
2023-01-27 10:30 |
Tokyo |
Takanawa Campus, Tokai Univ. (Primary: On-site, Secondary: Online) |
A Practical Number of Sampling Points for RF Spectrum Regeneration Method Using Direct RF Undersampling Takashi Shiba, Tomoyuki Furuichi, Noriharu Suematsu (Tohoku Univ.) SR2022-75 |
A Direct RF undersampling method is an important technique for simple circuits and devices because sampling frequency of... [more] |
SR2022-75 pp.12-19 |
MW |
2022-12-15 15:00 |
Mie |
Jingu-Kaikan(Ise) (Primary: On-site, Secondary: Online) |
A Design of Clock Fall Time for 60 GHz-band S/H Circuit using Simple Circuit Model Tomoyuki Furuichi, Mizuki Motoyoshi, Noriharu Suematsu (Tohoku Univ.) MW2022-135 |
The use of millimeter-wave bands such as the 60 GHz band has been attracting attention for broadband and large-capacity ... [more] |
MW2022-135 pp.22-26 |
RCS, AP, UWT (Joint) |
2022-11-15 14:30 |
Fukuoka |
Kyushu University, and Online (Primary: On-site, Secondary: Online) |
A Channel Sounder for Severe Doubly-Selective Channels of Underwater Acoustic Communications Hiroshi Kubo, Kouichi Hashimoto, Taichi Fujita, Takumi Yoshimura (Ritsumeikan Univ.) RCS2022-161 |
Doubly-selectivity of underwater acoustic communications (UWAC) can be measured by channel sounders, which estimate time... [more] |
RCS2022-161 pp.37-42 |
MW |
2022-03-04 10:00 |
Online |
Online |
A 60 GHz-band S/H CMOS IC for Direct RF Undersampling Reception Tomoyuki Furuichi, Nagahiro Yoshino, Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu (Tohoku Univ.) MW2021-131 |
As the increasing demand for high-speed communication, the use of millimeter-wave such as 60 GHz band has been attractin... [more] |
MW2021-131 pp.111-116 |
SR |
2021-11-04 09:30 |
Online |
Online |
Direct RF undersampling method without anti-aliasing top filter Takashi Shiba (Tohoku Univ.), Suguru Kameda (Hiroshima Univ.), Noriharu Suematsu (Tohoku Univ.) SR2021-41 |
Direct RF undersampling method is important technique for digital circuit and digital devices because sampling frequency... [more] |
SR2021-41 pp.1-8 |
MW, AP (Joint) |
2021-09-09 14:50 |
Online |
Online |
Effect of Jitter Noise on BER in Undersampling of Modulated Waves Hiroyuki Saito, Hiroyuki Arai (Yokohama National Univ.) AP2021-58 |
In this paper, the effect of jitter noise on BER when undersampling modulated signals such as QAM signals is investigate... [more] |
AP2021-58 pp.10-13 |
SR |
2021-05-21 14:00 |
Online |
Online |
[Technology Exhibit]
Wireless IoT Real Time Spectrum Monitor Based on Direct RF Undersampling Reception Technique Noriharu Suematsu, Tomoyuki Furuichi, Mizuki Motoyoshi, Suguru Kameda, Takashi Shiba (Tohoku Univ.) SR2021-19 |
In near future wireless IoT era, various and huge number of sensors/devices will be connected to the internet by wireles... [more] |
SR2021-19 pp.128-131 |
RCS, SR, SRW (Joint) |
2021-03-04 13:10 |
Online |
Online |
[Invited Talk]
Evolution and Prospect of Digital RF Transceiver Technologies Noriharu Suematsu, Mizuki Motoyoshi, Suguru Kameda (Tohoku Univ.) RCS2020-243 SR2020-82 SRW2020-72 |
USRP on the market makes SDR technology much popular. Requirements for SDR transceiver are multi-band and multi-mode ope... [more] |
RCS2020-243 SR2020-82 SRW2020-72 pp.177-181(RCS), pp.70-74(SR), pp.65-69(SRW) |
SR |
2021-01-26 14:20 |
Online |
Online |
[Invited Talk]
Frequency Spectrum and Node Sensing Techniques for Wireless IoT Takashi Shiba, Tomoyuki Furuichi, Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu (Tohoku Univ.) SR2020-59 |
It becomes a problem of low communication speed at narrow space with several wireless communication for example of wirel... [more] |
SR2020-59 pp.73-80 |
MW |
2020-03-06 10:20 |
Kochi |
Kochi City Culture-Plaza CUL=PORT (Cancelled but technical report was issued) |
Proposal of Beyond-Nyquist-Band of Water Vapor Radiometer using RF Under Sampling Xing Lyu, Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu (Tohoku Univ.) MW2019-155 |
It is important to develop a water vapor radiometer to accurately measure the amount of water vapor and cloud water in t... [more] |
MW2019-155 pp.85-89 |
AP, RCS (Joint) |
2019-11-22 16:10 |
Saga |
Saga Univ. |
A MIMO Channel Simulator Employing Ray Tracing Methods for Underwater Acoustic Communications Yoshiki Tsukamoto, Hiroshi Kubo (Ritsumeikan Univ.) AP2019-141 RCS2019-236 |
This paper proposes a MIMO (multiple-input multiple-output) channel simulator for underwater acoustic communications (UW... [more] |
AP2019-141 RCS2019-236 pp.193-198(AP), pp.187-192(RCS) |
MW |
2019-11-14 13:15 |
Okinawa |
Minami Daido Villa. Tamokuteki Koryu Center |
An Undersampling Frequency Detection Method Using Phase Difference of Clock Signals and Output Signals of Two S/H circuits Osamu Wada, Hiroyuki Mizutani, Hideyuki Nakamizo, Kazutomi Mori (Mitsubishi Electric) MW2019-101 |
In this paper, an undersampling frequency detection method using phase difference of a clock and an output signal of two... [more] |
MW2019-101 pp.7-12 |