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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2022-10-19 14:40 |
Gifu | GIFU CITY CULTURE CENTER (Primary: On-site, Secondary: Online) |
[Tutorial Lecture]
Research and Development of Radio Wave Propagation Model in Multiple Frequency Bands Considering Frequency Dependency Motoharu Sasaki (NTT)  AP2022-132 |
In the 5th generation mobile communication systems, radio wave propagation models and channel models have been studied a... [more] | AP2022-132 pp.158-163 |
| US | 2021-08-27 16:00 |
Online | Online | Preliminary study on the frequency dependence of the speed of sound of > rat organs Mai Ino, Kazuma Noguchi, Suguru Seto (Chiba Univ.), Masaaki Omura (Univ. of Toyama, Chiba Univ.), Kazuki Tamura (Hamamastu Univ. Sch. of Med.), Shinnosuke Hirata, Kenji Yoshida, Tadashi Yamaguchi (Chiba Univ.) US2021-32 |
Many studies for quantitative ultrasound (QUS) assessment at frequency band of clinical studies (1-15 MHz) and high fre... [more] | US2021-32 pp.26-30 |
| AP | 2020-08-21 15:20 |
Online | Online | [Tutorial Lecture]
Low Reflection Design of Meta-surface in Dielectric Plate by Deriving Optimum Equivalent-circuit Parameters Kunio Sakakibara, Takahiro Murai, Yoshiki Sugimoto, Nobuyoshi Kikuma (NITech) AP2020-30 |
Frequency selective surface (FSS); a kind of Meta-surface can be applied to reduce reflection loss of dielectric plate. ... [more] | AP2020-30 pp.39-42 |
| AP, SANE, SAT (Joint) |
2019-07-17 10:00 |
Miyagi | Tohoku Univ. | Design of Broadband On-Body Antenna Using Ultra-Wideband FDTD Method Jerdvisanop Chakarothai (NICT) AP2019-21 |
In this paper, broadband antennas close to a human body are designed using an improved FDTD method which can take into a... [more] | AP2019-21 pp.1-6 |
| SIP, IT, RCS | 2018-01-22 15:20 |
Kagawa | Sunport Hall Takamatsu | Performance evaluation on beam shapes and number of selected beams in a massive MIMO system Jumpei Yamamoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Yoshihisa Kishiyama, Daiki Takeda (NTT DOCOMO) IT2017-76 SIP2017-84 RCS2017-290 |
In massive MIMO systems, there have already been several studies on 2-step beamforming that forms a precoder in a subspa... [more] | IT2017-76 SIP2017-84 RCS2017-290 pp.125-130 |
| AP, SAT, SANE (Joint) |
2017-07-28 10:15 |
Aichi | Nagoya Institute of Technology | Path Loss Frequency Dependency of 2-66 GHz in an Urban Macro Cell Environment Motoharu Sasaki, Mitsuki Nakamura, Minoru Inomata, Yasushi Takatori (NTT), Koshiro Kitao, Tetsuro Imai (NTT DoCoMo) AP2017-60 |
This paper presents a frequency dependency of path loss in an urban macro (UMa) cell environment on the basis of the mea... [more] | AP2017-60 pp.81-86 |
| AP, SAT, SANE (Joint) |
2017-07-28 16:40 |
Aichi | Nagoya Institute of Technology | The Delay and Directional Characteristics of Propagation Channels from 3GHz Band to 28GHz Band in Indoor Environment Kentaro Saito, Panawit Hanpinitsak, Jun-ichi Takada (Tokyo Inst. of Tech.), Wei Fan, Gert F. Pedersen (Aalborg Univ.) AP2017-65 |
In the fifth-generation mobile communication system (5G), the utilization of millimeter wave band is highly expected to ... [more] | AP2017-65 pp.111-116 |
| RCS | 2017-06-21 15:20 |
Okinawa | Ishigaki Shoukou Kaikan | Performance Evaluation on Beam Selection Rules and Beam Shapes of a Massive MIMO System in Time-varying Environments Jumpei Yamamoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Daiki Takeda, Yoshihisa Kishiyama (NTTDocomo) RCS2017-55 |
In massive MIMO systems, there have already been a number of papers on 2-step beamforming that forms a precoder in a bea... [more] | RCS2017-55 pp.31-36 |
| AP, WPT (Joint) |
2017-01-19 14:10 |
Hiroshima | Hiroshima Institute of Technology | Path Loss Frequency Dependency of 2-26 GHz in an Urban Macro Cell Environment Motoharu Sasaki, Mitsuki Nakamura, Minoru Inomata, Yasushi Takatori (NTT), Kosihro Kitao, Tetsuro Imai (DOCOMO) AP2016-133 |
This paper presents a frequency dependency of path loss in an urban macro (Uma) cell environment on the basis of the mea... [more] | AP2016-133 pp.21-25 |
| NS, RCS (Joint) |
2016-12-22 16:00 |
Ishikawa | A Study on Beam Selection Rules and Beam Shapes for Hybrid Beamforming Jumpei Yamamoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Daiki Takeda, Yoshihisa Kishiyama (NTT docomo) RCS2016-234 |
The massive MIMO technology which generates sharp beams in higher frequency bands is known as a promising method to acco... [more] | RCS2016-234 pp.147-152 |
|
| AP, SAT, SANE (Joint) |
2016-07-22 09:30 |
Hokkaido | Otaru port marina | Path Loss Characteristics between Different Floors in Indoor Office from 0.8 GHz to 37 GHz Bands Motoharu Sasaki, Minoru Inomata, Naoki Kita, Takeshi Onizawa (NTT), Koshiro Kitao, Tetsuro Imai (NTT DOCOMO) AP2016-55 SAT2016-21 |
This paper presents a frequency dependency of path loss between different floors on the basis of a measurement result us... [more] | AP2016-55 SAT2016-21 pp.103-107(AP), pp.57-61(SAT) |
| MBE, NC (Joint) |
2016-03-23 10:25 |
Tokyo | Tamagawa University | Context-dependent auditory neural responses in the auditory cortex of freely moving mice Tachibana Yuishi, Tateno Takashi, Nishikawa Jun (Hokkaido Univ.) NC2015-99 |
It is necessary to reveal auditory response properties of individual neurons to find out the mechanism of auditory infor... [more] | NC2015-99 pp.173-178 |
| AP | 2015-07-31 10:20 |
Hokkaido | Wakkanai Sougou Bunka Center | Dependency of Frequency Selective Reflector Element Shape on Radiation Characteristics of FSR Backed Dipole Antenna Yusuke Tanizawa, Keizo Cho (Chiba Institute of Tech), Hideya So, Atsuya Ando (NTT) AP2015-52 |
Multi-band antennas have been popularly used as base station antennas for mobile communications systems. In this researc... [more] | AP2015-52 pp.71-76 |
| EMD | 2015-01-23 15:25 |
Kanagawa | A Basic consideration of a frequency interval dependency for the non-contact two-tone PIM tests using standing wave coaxial tube method Kumiko Morita, Nobuhiro Kuga (Yokohama Nat'l Univ.) EMD2014-105 |
This report discuss the influence of the frequency separation ware examined by a frequency sweep in the 2GHz narrow band... [more] | EMD2014-105 pp.19-22 |
|
| EMCJ, WPT (Joint) |
2015-01-22 14:50 |
Okinawa | Okinawaken Ｊichikaikan | Frequency scaling of induced electric field in the human body by quasi-static electric and magnetic fields Keita Yanagishima, Masao Taki (Tokyo Metropolitan Univ.) WPT2014-83 |
A novel method of frequency scaling was proposed to calculate induced electric field in a human body exposed to electrom... [more] | WPT2014-83 pp.31-36 |
| AP, RCS (Joint) |
2014-11-14 11:00 |
Yamagata | Yamagata University, Yonezawa Campus | [Invited Lecture]
Study on Propagation Characteristics for Design of Fifth-Generation Mobile Communication Systems
-- Frequency Dependency of Path Loss in 800 MHz to 37 GHz Band in Small-Cell Environment -- Tetsuro Imai, Koshiro Kitao, Ngochao Tran, Nobutaka Omaki, Yukihiko Okumura (NTT DOCOMO), Motoharu Sasaki, Wataru Yamada (NTT) AP2014-149 RCS2014-218 |
In 5G mobile communication system, it is one of the most important issues to clarify the propagation characteristics at ... [more] | AP2014-149 RCS2014-218 pp.115-120(AP), pp.119-124(RCS) |
| AP | 2014-03-11 10:20 |
Fukushima | Koriyama City Rodo Fukushi Kaikan | Measurement of Phase Center Location of a Cavity-backed Spiral Antenna Hai Liu, Motoyuki Sato (Tohoku Univ.) AP2013-192 |
The precise knowledge of the antenna phase center is of great importance for the signal processing and accurate ranging ... [more] | AP2013-192 pp.41-44 |
| AP, SAT (Joint) |
2012-07-27 13:00 |
Hokkaido | Hokkaido Univ. | Proposal of Propagation Model for Indoor Open-space between Floors considering the Effect of Carrier frequency and Cross-section size Yun Wen, Hiroshi Fujita, Makoto Yoshida (Fujitsu Labs) AP2012-56 |
Propagation model for path-loss estimation of indoor radio propagation is very important for indoor wireless system desi... [more] | AP2012-56 pp.149-154 |
| SP | 2010-06-17 13:00 |
Fukuoka | Kyushu University | On the frequency-dependency of the source-filter coupling in phonation Tokihiko Kaburagi (Kyushu Univ.) SP2010-33 |
The generation of voiced sound source is highly complex, since it may include acoustic feedback of the vocal tract to th... [more] | SP2010-33 pp.67-72 |
| RCS, AN, MoNA, SR (Joint) |
2009-03-04 13:40 |
Kanagawa | YRP | Performance Analysis of Frequency Offset Estimation in the Presence of DC Offset and IQ Imbalance for OFDM Direct Conversion Receivers Mamiko Inamori, Yukitoshi Sanada (Keio Univ.) SR2008-90 |
In WLAN receivers, a direct conversion architecture has been implemented in recent years. Though this architecture redu... [more] |
SR2008-90 pp.11-16 |
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