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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2009-05-21 11:20 |
Kumamoto | Kumamoto Univ. | An Investigation on Radius of a Whole-Body Phantom with Shoulders for Estimation of Path Loss in a WBAN System at 430M and 2450 MHz Satoru Amari, Atsushi Yamamoto, Koichi Ogawa (Panasonic)  AP2009-15 |
[more] | AP2009-15 pp.25-30 |
| AP | 2009-02-13 13:00 |
Tokyo | Tokyo University of Agriculture and Technology | An Evaluating of the MIMO Transmission Characteristics in a Cluster Propagation Environment Using a Spatial Fading Emulator Tsutomu Sakata, Atsushi Yamamoto, Koichi Ogawa (Panasonic Co.) AP2008-209 |
[more] | AP2008-209 pp.121-126 |
| AP | 2008-04-17 10:45 |
Osaka | Osaka Electro-Communication University | An analysis of radio propagation characteristics using ray-tracing techniques on an outdoor propagation experiment Toshiteru Hayashi, Atsushi Yamamoto, Koichi Ogawa (Matsushita Electric), Gert F. Pedersen (Aalborg Univ.) AP2008-2 |
This paper presents radio propagation characteristics at 2.4 GHz in a street micro-cell environment calculated using a t... [more] | AP2008-2 pp.7-12 |
| AP | 2008-04-17 11:10 |
Osaka | Osaka Electro-Communication University | A Multipath Measurement System with a Variable Power Angular Spectrum for Handset MIMO Antennas Tsutomu Sakata, Atsushi Yamamoto, Koichi Ogawa (Matsushita Electric Industrial Co., Ltd.) AP2008-3 |
A measurement system suitable for the evaluation of handset MIMO antennas in a microcell radio propagation environment h... [more] | AP2008-3 pp.13-18 |
| AP | 2008-03-13 11:10 |
Aichi | Nanzan Univ. | Characterization of the Radio Link of Body-Worn Helical Antennas With Regard To the Antenna Location, Radiation Pattern, and Polarization at 430MHz Koichi Ogawa, Satoru Amari, Atsushi Yamamoto (Matsushita Electric) AP2007-175 |
This paper presents the path loss characteristics of body-worn helical antennas with regard to the antenna location, rad... [more] | AP2007-175 pp.13-18 |
| AP | 2007-10-19 11:35 |
Aomori | Hirosaki Univ. | An Analysis of the Channel Response of a Handset MIMO Antenna in Street Microcell Environments Koichi Ogawa, Atsushi Yamamoto (Matsushita Electric), Toshiteru Hayashi (Panasonic Mobile Communications) AP2007-97 |
The channel characterization of handset MIMO antennas has been studied in street Microcell environments. We have attempt... [more] | AP2007-97 pp.57-62 |
| AP | 2006-10-20 13:25 |
Kyoto | Kyoto Univ. (Katsura Campus) | Resin-housing Effects on the Resonant Frequency of Handset Built-in Antennas Hiroshi Iwai, Tsutomu Sakata, Atsushi Yamamoto, Koichi Ogawa (Panasonic) AP2006-90 |
Resin-housing effects on the resonant frequency of handset built-in antennas are discussed in this paper. A resin plate ... [more] | AP2006-90 pp.79-84 |
| AP | 2006-08-24 10:45 |
Niigata | Toki Messe(Niigata) | An Investigation of the Interference Rejection Characteristics of a Handset Adaptive Array Antenna using an Optical Fiber Complex Radiation Pattern Measurement System Satoru Amari, Atsushi Yamamoto, Hiroshi Iwai, Koichi Ogawa (MEI) AP2006-60 |
[more] | AP2006-60 pp.17-22 |
| AP, SAT (Joint) |
2006-05-18 10:50 |
Kagoshima | Kagoshima Univ. | Measurement of Radio Wave Propagation in a Japanese House at 5GHz. Tsutomu Sakata, Hiroshi Iwai, Atsushi Yamamoto, Koichi Ogawa (Matsushita Electric Industrial Co., Ltd.), Kei Sakaguchi, Kiyomichi Araki (Tokyo Institute of Technology) AP2006-13 |
[more] | AP2006-13 pp.23-28 |
| AP, SAT (Joint) |
2006-05-19 16:30 |
Kagoshima | Kagoshima Univ. | An Investigation on a Method for Estimating the Channel Capacity of a Handset MIMO under Imbalance Received Power Conditions Satoru Amari, Atsushi Yamamoto, Hiroshi Iwai, Koichi Ogawa (Matsushita Electric Industrial Co., Ltd.) AP2006-32 |
[more] | AP2006-32 pp.127-132 |
| IN, ICM, LOIS (Joint) |
2006-01-20 13:30 |
Kyoto | Kyoto Univ. | Performance of Hybrid ARQ with Packet Combining for Evolved UTRA and UTRAN Atsushi Yamamoto, Hiroshi Yamamoto, Kazuya Tsukamoto, Masato Uchida, Masato Tsuru, Yuji Oie (KIT) |
Evolved UTRA and UTRAN has emerged as a next generation mobile communication system. Hybrid ARQ with packet combining (... [more] |
IN2005-140 pp.67-72 |
| AP, RCS (Joint) |
2005-10-21 13:50 |
Akita | Akita Prefectural Univ. | Channel Capacity of a Handset MIMO Antenna Influenced by the effects of 3D Angular Spectrum, Polarization and Human Operator Hiroshi Iwai, Atsushi Yamamoto, Koichi Ogawa (Panasonic), Jun-ichi Takada (TIT) |
This paper studies on the channel capacity of a handset MIMO antenna in a cellular radio propagation environment. The Mo... [more] | AP2005-107 pp.133-138 |
| AP, SAT (Joint) |
2005-05-19 15:40 |
Tottori | Tottori Univ. of Environmental Studies | A radiation characteristicof a small loop antenna with a current-excited element Yoshishige Yoshikawa, Atsushi Yamamoto, Koichi Ogawa (MEI) |
[more] | AP2005-20 pp.63-68 |
| RCS, AP, WBS, MW, MoNA | 2005-03-04 15:50 |
Kanagawa | Yokosuka Research Park | Multipath Performance of Handset Adaptive Array Antennas in the Vicinity of a Human Operator Koichi Ogawa, Atsushi Yamamoto (Matsushita Elec.), Jun-ichi Takada (Tokyo Inst. Tech.) |
This paper studies the performance of adaptive array antennas in digital handset systems using the minimum mean square e... [more] | WBS2004-160 AP2004-341 RCS2004-428 MoMuC2004-211 MW2004-338 pp.227-232 |
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