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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 26  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
AP, SAT
(Joint)
2006-07-06
13:00
Hiroshima Hiroshima Institute of Technology Fixed point arithmetic of FDTD method in lossy dielectric
Ryo Yamaguchi, Hidetoshi Suzuki, Yuta Takagi, Shinji Uebayashi (NTT DoCoMo) AP2006-43
 [more] AP2006-43
pp.25-29
AP, SAT
(Joint)
2006-05-19
10:50
Kagoshima Kagoshima Univ. Estimation of accuracy for fixed point arithmetic FDTD method
Ryo Yamaguchi, Hidetoshi Suzuki, Yuta Takagi, Shinji Uebayashi (NTT DoCoMo) AP2006-21
 [more] AP2006-21
pp.71-76
AP 2005-09-08
10:20
Aichi TOYOTA CENTRAL R&D LABS., INC. A Study on Transmission Characteristics of Array Antenna for Mobile Handset
Ryo Yamaguchi (NTT DoCoMo), Kenji Osaki (DoCoMo Technology), Shinji Uebayashi (NTT DoCoMo)
 [more] AP2005-67
pp.13-18
EMCJ 2005-09-09
16:30
Kyoto Kyoto University Electric Field Measurement in a Tissue-Equivalent Phantom Using EO Probe
Hiroyoshi Togo (NTT), Teruo Onishi, Katsuki Kiminami (NTT DoCoMo), Naofumi Shimizu, Tadao Nagatsuma (NTT), Shinji Uebayashi (NTT DoCoMo)
We have developed two types of electric field probe (EO probe) which can detect an electric field along longitudinal or ... [more] EMCJ2005-79
pp.121-126
EMCJ, EMD 2005-07-28
13:20
Tokyo Kikai-Shinko-Kaikan Bldg. Estimation Method of 3-D SAR Distribution with 2-D Electric Field Measurement
Katsuki Kiminami, Teruo Onishi, Shinji Uebayashi (NTT DoCoMo)
The compliance test procedures for Specific Absorption Rate (SAR) measurement from with respect to mobile wireless termi... [more] EMCJ2005-45 EMD2005-24
pp.23-28
AP, SAT
(Joint)
2005-07-20
15:40
Hokkaido Hotel Taisetsu Measurement of Current Phase Distribution Using Polarization Stabilized MO Probe
Shin Nakamatsu, Ryo Yamaguchi, Shinji Uebayashi (DoCoMo), Masato Kishi (Univ. of Tokyo), Masahiro Tsuchiya (NICT)
In electromagnetic compatibility (EMC) assessment or the controlling of the radiation characteristics of wireless mobile... [more] AP2005-46
pp.53-56
AP, SAT
(Joint)
2005-07-20
16:15
Hokkaido Hotel Taisetsu The Effects of the polarization diversity of the Base Station in Indoor Environments
Yuta Takagi (NTT DoCoMo), Kenji Osaki, Hideki Kawai (DoCoMo Technology), Ryo Yamaguchi, Shinji Uebayashi (NTT DoCoMo)
In order to realize a communication by the minimum transmission power of mobile stations on indoor environments as medic... [more] AP2005-47
pp.57-62
AP, SAT
(Joint)
2005-07-20
16:40
Hokkaido Hotel Taisetsu A Study on Fast Estimation of the Electric Field in Indoor Environments
Yuta Takagi, Ryo Yamaguchi, Shinji Uebayashi (NTT DoCoMo)
We examine the fast estimation method of the electric field using the antenna system that arranges the cross polarizatio... [more] AP2005-48
pp.63-66
AP 2005-06-23
15:30
Tokyo Kikai-Shinko-Kaikan Bldg. Multi-Port Random Signal Generator
Ryo Yamaguchi (NTT DoCoMo), Kenji Osaki, Hideki Kawai (DoCoMo Technology), Shinji Uebayashi (NTT DoCoMo)
 [more] AP2005-35
pp.31-36
AP, SAT
(Joint)
2005-05-19
14:50
Tottori Tottori Univ. of Environmental Studies A study on high speed arithmetic of FDTD method using FPGA implementing
Hidetoshi Suzuki, Yuta Takagi, Ryo Yamaguchi, Shinji Uebayashi (NTTDoCoMo Inc.)
We have examined the FPGA (Field Programmable Gate Array) implementation of the FDTD algorithm to accelerate the electro... [more] AP2005-18
pp.51-56
EMCJ 2005-04-22
13:30
Kanagawa Shonan Campus, Tokai University Three-Dimensional Hybrid Analysis of the SAR in Human Body for Base-Station Antennas
Masayuki Komatsu, Jianqing Wang, Osamu Fujiwara (Nagoya Inst. of Tech.), Yoshiaki Tarusawa, Shinji Uebayashi (NTT DoCoMo)
In this study we have established an effective technique for dosimetric analyses of base-station antennas in an undergro... [more] EMCJ2005-2
pp.7-12
AP 2005-04-21
13:50
Shiga Ritsumeikan Univ. Estimation of current distribution by using polarization stabilized MO probe
Shin Nakamatsu (DoCoMo), Shunsuke Mitani (Univ. of Tokyo), Ryo Yamaguchi, Shinji Uebayashi (DoCoMo), Masato Kishi (Univ. of Tokyo), Masahiro Tsuchiya (NICT)
 [more] AP2005-5
pp.25-28
RCS, AP, WBS, MW, MoNA 2005-03-03
16:20
Kanagawa Yokosuka Research Park Study on the Diversity Reception of the Base Station on Indoor Environments
Yuta Takagi, Ryo Yamaguchi, Shinji Uebayashi (NTT DoCoMo)
In order to realize a communication by the minimum transmission power of mobile stations on indoor environments as medic... [more] WBS2004-121 AP2004-302 RCS2004-389 MoMuC2004-172 MW2004-299
pp.135-140
AP 2005-02-17
15:15
Tokyo NiCT An Experimental Study on Determination Method of High Efficiency Antenna Weight for Mobile Handsets Using Random Outer Test Source(ROTS)
Ryo Yamaguchi, Hidetoshi Suzuki (NTT DoCoMo), Hideki Kawai (DoCoMo Technology), Shinji Uebayashi (NTT DoCoMo)
The new determination method of high efficiency antenna weight for mobile handset having array antenna by using Random O... [more] AP2004-234
pp.67-72
EMCJ 2005-01-20
14:00
Okinawa NiCT Okinawa Subtropical Environment Remote Sensing Center Uncertainty of SAR measurement of cellular phones
Yoshiaki Ichino (TELEC), Takashi Shinozuka (NICT), Nozomu Ishii (Niigata Univ.), Shinji Uebayashi, Teruo Onishi (NTT DoCoMo), Akira Suzuki, Yukio Yamanaka, Soichi Watanabe (NICT)
 [more] EMCJ2004-125
pp.49-54
EMCJ 2005-01-20
14:25
Okinawa NiCT Okinawa Subtropical Environment Remote Sensing Center Probe calibration system for SAR measurement and evaluation of calibration uncertainty -- 900MHz band system in compliance with ARIB standard --
Kazuhiro Aikyo (TELEC), Takashi Shinozuka (NICT), Nozomu Ishii (Niigata Univ.), Shinji Uebayashi, Teruo Onishi (NTT DoCoMo), Akira Suzuki, Yukio Yamanaka, Soichi Watanabe (NICT)
 [more] EMCJ2004-126
pp.55-59
EMCJ 2005-01-21
10:20
Okinawa NiCT Okinawa Subtropical Environment Remote Sensing Center Dielectric Measurement of Solid Lossy Dielectric Material using Open-ended Waveguide in the Microwave Frequency Band
Hidetoshi Ebara (NTT DoCoMo), Kensuke Tani, Daisuke Miki (AGU), Teruo Onishi, Shinji Uebayashi (NTT DoCoMo), Osamu Hashimoto (AGU)
The aim of this study is to specify a nondestructive dielectric measurement method for a solid phantom, which is constru... [more] EMCJ2004-134
pp.19-24
AP 2005-01-20
13:00
Saga Saga University A study on accuracy of FDTD method using fixed-point arithmetic
Hidetoshi Suzuki, Yuta Takagi, Ryo Yamaguchi, Shinji Uebayashi (NTTDoCoMo Inc.)
Although FDTD method is used for electromagnetic field simulator extensively, it spends long time because it is calculat... [more] AP2004-202
pp.37-41
EMCJ 2004-12-10
10:40
Aichi Nagoya Institute of Technology Compensation Techniques for Thermal Diffusion in the SAR Measurement Using the Thermographic Method
Takuya Takimoto (Chiba Univ.), Teruo Onishi (NTT DoCoMo), Kazuyuki Saito, Masaharu Takahashi (Chiba Univ.), Shinji Uebayashi (NTT DoCoMo), Koichi Ito (Chiba Univ.)
 [more] EMCJ2004-105
pp.19-24
EMCJ 2004-12-10
11:05
Aichi Nagoya Institute of Technology The estimation of the maximum SAR with respect to various types of wireless device usage
Teruo Onishi, Takahiro Iyama, Shinji Uebayashi (NTT DoCoMo)
 [more] EMCJ2004-106
pp.25-28
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