Soichi WATANABE


Variability of Specific Absorption Rate of Human Body for Various Configurations of Tablet Computer in Vicinity of Abdomen
Akihiro TATENO Tomoaki NAGAOKA Kazuyuki SAITO Soichi WATANABE Masaharu TAKAHASHI Koichi ITO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/07/01
Vol. E98-B  No. 7  pp. 1173-1181
Type of Manuscript:  Special Section PAPER (Special Section on Electromagnetic Compatibility Technology in Conjunction with Main Topics of EMC'14/Tokyo)
Category: 
Keyword: 
specific absorption rate (SAR)wireless radio terminalsnumerical models of humanfinite-difference time-domain (FDTD) method
 Summary | Full Text:PDF(4.2MB)

Dosimetry and Verification for 6-GHz Whole-Body Non-Constraint Exposure of Rats Using Reverberation Chamber
Jingjing SHI Jerdvisanop CHAKAROTHAI Jianqing WANG Kanako WAKE Soichi WATANABE Osamu FUJIWARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/07/01
Vol. E98-B  No. 7  pp. 1164-1172
Type of Manuscript:  Special Section PAPER (Special Section on Electromagnetic Compatibility Technology in Conjunction with Main Topics of EMC'14/Tokyo)
Category: 
Keyword: 
specific absorption rate (SAR)reverberation-chamber (RC) exposure systemfinite-difference time-domain (FDTD) methodS-parameter measurements
 Summary | Full Text:PDF(5MB)

Specific Absorption Rates and Temperature Elevations due to Wireless Radio Terminals in Proximity to a Fetus at Gestational Ages of 13, 18, and 26 Weeks
Akihiro TATENO Shimpei AKIMOTO Tomoaki NAGAOKA Kazuyuki SAITO Soichi WATANABE Masaharu TAKAHASHI Koichi ITO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/10/01
Vol. E97-B  No. 10  pp. 2175-2183
Type of Manuscript:  PAPER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
fetusspecific absorption rate (SAR)temperature elevationwireless radio terminalsfinite-difference time-domain (FDTD) method
 Summary | Full Text:PDF(3.8MB)

Quantification and Verification of Whole-Body-Average SARs in Small Animals Exposed to Electromagnetic Fields inside Reverberation Chamber
Jingjing SHI Jerdvisanop CHAKAROTHAI Jianqing WANG Kanako WAKE Soichi WATANABE Osamu FUJIWARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/10/01
Vol. E97-B  No. 10  pp. 2184-2191
Type of Manuscript:  PAPER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
specific absorption rate (SAR)reverberation-chamber (RC)exposure systemfinite-difference time-domain (FDTD) methodmethod of moments (MoM)
 Summary | Full Text:PDF(3.1MB)

A Novel SAR-Probe Calibration Method Using a Waveguide Aperture in Tissue-Equivalent Liquid
Nozomu ISHII Lira HAMADA Soichi WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/10/01
Vol. E97-B  No. 10  pp. 2035-2041
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Measurement and Design Techniques on Antennas, Propagation and Wireless Systems)
Category: 
Keyword: 
specific absorption rate (SAR)probe calibrationtissue-equivalent liquidwaveguide aperture
 Summary | Full Text:PDF(1.4MB)

Experimental Evaluation of SAR around an Implanted Cardiac Pacemaker Caused by Mobile Radio Terminal
Yuta ENDO Kazuyuki SAITO Soichi WATANABE Masaharu TAKAHASHI Koichi ITO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/06/01
Vol. E95-B  No. 6  pp. 2129-2132
Type of Manuscript:  LETTER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
implanted cardiac pacemakerSARphantomFDTDPIFA
 Summary | Full Text:PDF(679.5KB)

SAR-Probe Calibration System Using Reference Dipole Antenna in Tissue-Equivalent Liquid
Nozomu ISHII Yukihiro MIYOTA Ken-ichi SATO Lira HAMADA Soichi WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/01/01
Vol. E95-B  No. 1  pp. 60-68
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2010)
Category: Antenna Measurement
Keyword: 
specific absorption rate (SAR)probecalibrationtissue-equivalent liquidtwo-antenna methodgain
 Summary | Full Text:PDF(1.8MB)

A Head-Local-Exposure System for Rats Using a Figure-8 Loop Antenna in the 2 GHz Band
Hiroki KAWAI Kanako WAKE Takuji ARIMA Soichi WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/06/01
Vol. E94-B  No. 6  pp. 1757-1760
Type of Manuscript:  LETTER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
EMFratlocal exposureSARloop antenna
 Summary | Full Text:PDF(655KB)

Evaluation of SAR and Temperature Elevation Using Japanese Anatomical Human Models for Body-Worn Devices
Teruo ONISHI Takahiro IYAMA Lira HAMADA Soichi WATANABE Akimasa HIRATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3643-3646
Type of Manuscript:  LETTER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
10 g average SARTemperature elevationBody-worn devicesJapanese anatomical human modelsFDTD methodBio-heat equation
 Summary | Full Text:PDF(216.7KB)

Estimation of EMI Impact by Cellular Radio on Implantable Cardiac Pacemakers in Elevator Using EMF Distributions Inside Human Body
Atsushi KITAGAWA Takashi HIKAGE Toshio NOJIMA Ally Y. SIMBA Soichi WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/07/01
Vol. E93-B  No. 7  pp. 1839-1846
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Electromagnetic Compatibility Technology in Conjunction with Main Topics of EMC'09/Kyoto)
Category: Biological Effects and Safety
Keyword: 
implantable cardiac pacemakerscellular radioselevatorfinite difference time domain methodnumerical phantom model
 Summary | Full Text:PDF(5.4MB)

Effect of Heterogeneity of Tissues on RF Energy Absorption in the Brain for Exposure Assessment in Epidemiological Studies on Mobile Phone Use and Brain Tumors
Nadege VARSIER Kanako WAKE Masao TAKI Soichi WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/11/01
Vol. E91-B  No. 11  pp. 3792-3795
Type of Manuscript:  LETTER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
brainepidemiological studyhealth effectsRF exposureSAR
 Summary | Full Text:PDF(410.7KB)

Simultaneous Measurement of Antenna Gain and Complex Permittivity of Liquid in Near-Field Region Using Weighted Regression
Nozomu ISHII Hiroki SHIGA Naoto IKARASHI Ken-ichi SATO Lira HAMADA Soichi WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/06/01
Vol. E91-B  No. 6  pp. 1831-1837
Type of Manuscript:  Special Section PAPER (Special Section on 2007 International Symposium on Antennas and Propagation)
Category: Measurements
Keyword: 
SARnear-field regionabsolute gainFriis transmission equationleast square method
 Summary | Full Text:PDF(517.2KB)

A Method of Measuring Gain in Liquids Based on the Friis Transmission Formula in the Near-Field Region
Nozomu ISHII Takuhei AKAGAWA Ken-ichi SATO Lira HAMADA Soichi WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/09/01
Vol. E90-B  No. 9  pp. 2401-2407
Type of Manuscript:  Special Section PAPER (Special Section on 2006 International Symposium on Antennas and Propagation)
Category: Measurements
Keyword: 
Friis transmission formulaSAR probe calibrationconducting mediumFresnel approximationfar-field gain
 Summary | Full Text:PDF(484.1KB)

The Measurements of the Complex Permittivities of Blood Samples in Quasi-Millimeter and Millimeter Wave Bands
Hiroki WAKATSUCHI Masahiro HANAZAWA Soichi WATANABE Atsuhiro NISHIKATA Masaki KOUZAI Masami KOJIMA Yoko YAMASHIRO Kazuyuki SASAKI Osamu HASHIMOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/06/01
Vol. E90-B  No. 6  pp. 1357-1359
Type of Manuscript:  Special Section LETTER (Special Section on 2nd Pan-Pacific EMC Joint Meeting--PPEMC'06--)
Category: 
Keyword: 
whole bloodblood plasmacomplex permittivitiestemperature dependencemillimeter wavesquasi millimeter wavescoaxial probe method
 Summary | Full Text:PDF(263.8KB)

Electric-Field Distribution Estimation in a Train Carriage due to Cellular Radios in order to Assess the Implantable Cardiac Pacemaker EMI in Semi-Echoic Environments
Takashi HIKAGE Toshio NOJIMA Soichi WATANABE Takashi SHINOZUKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/08/01
Vol. E88-B  No. 8  pp. 3281-3286
Type of Manuscript:  Special Section PAPER (Special Section of 2004 International Symposium on Electromagnetic Compatibility)
Category: Biological Effects
Keyword: 
EMCEMIimplantable cardiac pacemakercellular radioFDTDtrain carriage
 Summary | Full Text:PDF(1MB)

Electromagnetic and Thermal Dosimetry of a Cylindrical Waveguide-Type in vitro Exposure Apparatus
Tomohide SONODA Rui TOKUNAGA Koichi SETO Yukihisa SUZUKI Kanako WAKE Soichi WATANABE Masao TAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/08/01
Vol. E88-B  No. 8  pp. 3287-3293
Type of Manuscript:  Special Section PAPER (Special Section of 2004 International Symposium on Electromagnetic Compatibility)
Category: Biological Effects
Keyword: 
SARelectromagnetic fieldtemperature distributiondosimetryradio frequencycylindrical waveguidein vitro exposure apparatus
 Summary | Full Text:PDF(572.9KB)

Human Body Impedance for Contact Current Measurement in Japan
Yoshitsugu KAMIMURA Katsuo KOMORI Masahiro SHOJI Yoshifumi YAMADA Soichi WATANABE Yukio YAMANAKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/08/01
Vol. E88-B  No. 8  pp. 3263-3268
Type of Manuscript:  Special Section PAPER (Special Section of 2004 International Symposium on Electromagnetic Compatibility)
Category: Biological Effects
Keyword: 
contact currentequivalent circuitimpedance method
 Summary | Full Text:PDF(770.1KB)

Inner-Chip-Interference Cancellation Using Rake Receiver with Wiener Filter
Tsung-ting TSAI Soichi WATANABE Yung-Liang HUANG Takuro SATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/11/01
Vol. E87-B  No. 11  pp. 3295-3302
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
W-CDMAWiener filterindoor interference cancellation
 Summary | Full Text:PDF(524.9KB)

A New Iterative MoM/FDTD Formulation for Simulating Human Exposure to Electromagnetic Waves
Shoji MOCHIZUKI Soichi WATANABE Masao TAKI Yukio YAMANAKA Hiroshi SHIRAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/09/01
Vol. E87-C  No. 9  pp. 1540-1547
Type of Manuscript:  Special Section PAPER (Special Section on Wave Technologies for Wireless and Optical Communications)
Category: Basic Electromagnetic Analysis
Keyword: 
SARiteration procedurenumerical hybrid methodFDTD methodMethod of Moments
 Summary | Full Text:PDF(1MB)

Performance Analysis of Distance-Assisted Handoff Algorithm in Multi-Cellular Systems
Jen Shu SHIH Ken-ichi ITOH Soichi WATANABE Takuro SATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/09/01
Vol. E85-B  No. 9  pp. 1676-1684
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
handoffdistance measurementRSSI measurementmobile communication systemperformance analysis
 Summary | Full Text:PDF(456KB)

Forward Subchannel Control Scheme for TDD Multi-Carrier Mobile Communication System
Soichi WATANABE Takuro SATO Takeo ABE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/07/25
Vol. E82-A  No. 7  pp. 1172-1178
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
forward subchannel controlTDD multi-carrierdelay estimatorchannel estimator
 Summary | Full Text:PDF(739.7KB)

Two Dimensional Equalization Scheme of Orthogonal Coding Multi-Carrier CDMA
Soichi WATANABE Takuro SATO Masakazu SENGOKU Takeo ABE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/06/25
Vol. E81-A  No. 6  pp. 1079-1088
Type of Manuscript:  Special Section PAPER (Special Section of Papers Selected from ITC-CSCC'97)
Category: Spread Spectrum Technologies and Applications
Keyword: 
MAI2D equalizationorthogonal codingmulti-carrierCDMA
 Summary | Full Text:PDF(780.5KB)

Frequency Characteristics of Energy Deposition in Human Model Exposed to Near Field of an Electric or a Magnetic Dipole
Soichi WATANABE Masao TAKI Yoshitsugu KAMIMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/06/25
Vol. E77-B  No. 6  pp. 725-731
Type of Manuscript:  Special Section PAPER (Special Issue on Biological Effects of Electromagnetic Fields)
Category: 
Keyword: 
near-field exposurebiological effectspecific absorption ratefinite-difference time-domain method
 Summary | Full Text:PDF(639KB)

An Analysis of Dose in Tissue Irradiated by Near Field of a Circular Loop Antenna
Haruhiro TERADA Fumio KITAGAWA Nobuo OKAMOTO Soichi WATANABE Masao TAKI Masao SAITO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/06/25
Vol. E77-B  No. 6  pp. 754-761
Type of Manuscript:  Special Section PAPER (Special Issue on Biological Effects of Electromagnetic Fields)
Category: 
Keyword: 
analysisnear fieldscircular loop antennaRF and ELF biological effectsclinical use
 Summary | Full Text:PDF(641.2KB)