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IEICE Trans

Takashi HIKAGE

Electromagnetic Field Analysis and EMI Evaluation of Radio Altimeter and 5G Sub-6 GHz Band in Aircraft Environment
Kohsuke USHIMARU Takashi HIKAGE Manabu OMIYA Kazuyuki MORIOKA Shunichi FUTATSUMORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2025/09/01
Vol. E108-B  No. 9  pp. 983-990
Type of Manuscript:  Special Section PAPER (Special Section on Electromagnetic Compatibility in Conjunction with EMC Japan/APEMC Okinawa)
Category: 
Keyword: 
FDTD method, small aircraft, radio altimeter, propagation characteristics, radiation directivity characteristics, 
 Summary | Full Text:PDF
Propagation Loss Model with Human Body Shielding for High-Altitude Platform Station Communications
Hideki OMOTE Akihiro SATO Sho KIMURA Shoma TANAKA HoYu LIN Takashi HIKAGE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2022/10/01
Vol. E105-B  No. 10  pp. 1219-1230
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
mobile radio, propagation, human shielding loss, HAPS, measurements, 
 Summary | Full Text:PDF
A Study on Gain Enhanced Leaf-Shaped Bow-Tie Slot Array Antenna within Quasi-Millimeter Wave Band
Mangseang HOR Takashi HIKAGE Manabu YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2022/03/01
Vol. E105-B  No. 3  pp. 285-294
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
leaf-shaped bowtie slot antenna, slot antennas array, FDTD, quasi-millimeter wave band, 
 Summary | Full Text:PDF
FEM Simulations of Implantable Cardiac Pacemaker EMI Triggered by HF-Band Wireless Power Transfer System
Naoki TANAKA Takashi HIKAGE Toshio NOJIMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2016/07/01
Vol. E99-C  No. 7  pp. 809-812
Type of Manuscript:  BRIEF PAPER
Category: 
Keyword: 
implantable cardiac pacemaker, wireless power transfer, electromagnetic interference, finite element method (FEM), 
 Summary | Full Text:PDF
Basic Construction of Whole-Body Averaged SAR Estimation System Using Cylindrical-External Field Scanning for UHF Plane Wave Irradiation of Human Models
Yoshifumi KAWAMURA Takashi HIKAGE Toshio NOJIMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/10/01
Vol. E93-B  No. 10  pp. 2636-2643
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Technologies in Antennas and Propagation in Conjunction with Main Topics of ISAP2009)
Category: Electromagnetic Analysis
Keyword: 
cylindrical fields scanning, whole-body averaged SAR, human exposure, FDTD technique, Mie scattering, 
 Summary | Full Text:PDF
Experimental Quasi-Microwave Whole-Body Averaged SAR Estimation Method Using Cylindrical-External Field Scanning
Yoshifumi KAWAMURA Takashi HIKAGE Toshio NOJIMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/07/01
Vol. E93-B  No. 7  pp. 1826-1833
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: 
whole-body averaged SAR, field measurement, scaled model, mobile phone frequency, plane-wave exposure system, 
 Summary | Full Text:PDF
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 pacemakers, cellular radios, elevator, finite difference time domain method, numerical phantom model, 
 Summary | Full Text:PDF
Precise Estimation of Cellular Radio Electromagnetic Field in Elevators and EMI Impact on Implantable Cardiac Pacemakers
Louis-Ray HARRIS Takashi HIKAGE Toshio NOJIMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2009/09/01
Vol. E92-C  No. 9  pp. 1182-1187
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies and Their Applications)
Category: 
Keyword: 
cellular radio, elevator, implantable cardiac pacemaker, electromagnetic interference, finite-difference-time-domain method, 
 Summary | Full Text:PDF
Using Large-Scale FDTD Method to Obtain Precise Numerical Estimation of Indoor Wireless Local Area Network Office Environment
Louis-Ray HARRIS Takashi HIKAGE Toshio NOJIMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/09/01
Vol. E92-A  No. 9  pp. 2177-2183
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: Wireless LAN System
Keyword: 
finite-difference-time-domain (FDTD) method, wireless local area network (WLAN), indoor propagation, histogram, human absorption, 
 Summary | Full Text:PDF
A Novel Filter Construction Utilizing HTS Reaction-Type Filter to Improve Adjacent Channel Leakage Power Ratio of Mobile Communication Systems
Shunichi FUTATSUMORI Takashi HIKAGE Toshio NOJIMA Akihiko AKASEGAWA Teru NAKANISHI Kazunori YAMANAKA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2009/03/01
Vol. E92-C  No. 3  pp. 307-314
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Superconducting Analog Devices and Their Applications)
Category: Microwaves
Keyword: 
adjacent channel leakage power ratio, high-temperature superconductor, intermodulation distortion, power handling capability, reaction-type filter, 
 Summary | Full Text:PDF
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: 
EMC, EMI, implantable cardiac pacemaker, cellular radio, FDTD, train carriage, 
 Summary | Full Text:PDF
FDTD Analysis of Mutual Coupling of Cavity-Backed Slot Antenna Array
Takashi HIKAGE Manabu OMIYA Kiyohiko ITOH 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/12/25
Vol. E81-C  No. 12  pp. 1838-1844
Type of Manuscript:  Special Section PAPER (Special Issue on Computational Electromagnetics)
Category: 
Keyword: 
time domain analysis, FDTD technique, solar power satellite, power transmission antenna, array antenna, mutual coupling, 
 Summary | Full Text:PDF