Toru FUKASAWA

Design of the Traveling-Wave Series-Fed Microstrip Antenna Array with Power Control Slits of Unequal Inter-Element Spacing
Jun GOTO Makoto MATSUKI Takashi MARUYAMA Toru FUKASAWA Naofumi YONEDA Jiro HIROKAWA 
Publication:   
Publication Date: 2021/06/01
Vol. E104-B  No. 6  pp. 624-629
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
array antenna, microstrip, series-fed, traveling-wave, 
 Summary | Full Text:PDF
A Suspended Stripline Fed Dual-Polarized Open-Ended Waveguide Subarray with Metal Posts for Phased Array Antennas
Narihiro NAKAMOTO Toru TAKAHASHI Toru FUKASAWA Naofumi YONEDA Hiroaki MIYASHITA 
Publication:   
Publication Date: 2021/03/01
Vol. E104-B  No. 3  pp. 295-303
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
antenna array, dual-polarization, open ended waveguide, phased array, suspended stripline, 
 Summary | Full Text:PDF
S-Parameter Analysis for Balanced and Unbalanced Modes Corresponding Dissipated Power of a Small Antenna
Takashi YANAGI Yasuhiro NISHIOKA Toru FUKASAWA Naofumi YONEDA Hiroaki MIYASHITA 
Publication:   
Publication Date: 2020/07/01
Vol. E103-B  No. 7  pp. 780-786
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
balanced mode, unbalanced mode, S-parameter, self-balancing, measurement, 
 Summary | Full Text:PDF
Extended S-Parameter Method for Measuring Reflection and Mutual Coupling of Multi-Antennas
Takashi YANAGI Toru FUKASAWA Hiroaki MIYASHITA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/10/01
Vol. E99-B  No. 10  pp. 2195-2202
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
S-parameter method, multiport antennas, impedance, mutual coupling, measurement, 
 Summary | Full Text:PDF
S-Parameter Method and Its Application for Antenna Measurements
Takayuki SASAMORI Toru FUKASAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/10/01
Vol. E97-B  No. 10  pp. 2011-2021
Type of Manuscript:  INVITED PAPER (Special Section on Recent Progress in Measurement and Design Techniques on Antennas, Propagation and Wireless Systems)
Category: 
Keyword: 
S-parameter method, input impedance, radiation pattern, reflection coefficient, 
 Summary | Full Text:PDF
M-Shaped Dielectric Phase Shifter for Beam-Steerable Base-Station Antenna
Kengo NISHIMOTO Takeshi OSHIMA Toru FUKASAWA Hiroaki MIYASHITA Yoshihiko KONISHI Manabu KURIHARA Yoshiyuki CHATANI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/08/01
Vol. E96-B  No. 8  pp. 2095-2101
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
phase shifter, dielectric, M-shaped, base-station antenna, 
 Summary | Full Text:PDF
Acceleration of Flexible GMRES Using Fast Multipole Method for Implementation Based on Combined Tangential Formulation
Hidetoshi CHIBA Toru FUKASAWA Hiroaki MIYASHITA Yoshihiko KONISHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/10/01
Vol. E94-C  No. 10  pp. 1661-1668
Type of Manuscript:  PAPER
Category: Electromagnetic Theory
Keyword: 
flexible GMRES, integral equation methods, method of moments, combined tangential formulation, PMCHWT, fast multipole method, multilevel fast multipole algorithm, 
 Summary | Full Text:PDF
Convergence Property of IDR(s) Method Implemented along with Method of Moments for Solving Large-Scale Electromagnetic Scattering Problems Involving Conducting Objects
Hidetoshi CHIBA Toru FUKASAWA Hiroaki MIYASHITA Yoshihiko KONISHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/02/01
Vol. E94-C  No. 2  pp. 198-205
Type of Manuscript:  PAPER
Category: Electromagnetic Theory
Keyword: 
IDR(s) method, Krylov subspace methods, integral equation methods, method of moments, multilevel fast multipole algorithm, 
 Summary | Full Text:PDF
Efficient Implementation of Inner-Outer Flexible GMRES for the Method of Moments Based on a Volume-Surface Integral Equation
Hidetoshi CHIBA Toru FUKASAWA Hiroaki MIYASHITA Yoshihiko KONISHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/01/01
Vol. E94-C  No. 1  pp. 24-31
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Electromagnetic Theory and Its Application)
Category: Numerical Techniques
Keyword: 
flexible GMRES, integral equation methods, method of moments, multilevel fast multipole algorithm, Krylov subspace methods, 
 Summary | Full Text:PDF
Triple-Bands Broad Bandwidth Dipole Antenna with Multiple Parasitic Elements
Toru FUKASAWA Hiroyuki OHMINE Kazuhito MIYASHITA Yoshiyuki CHATANI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/09/01
Vol. E84-B  No. 9  pp. 2476-2481
Type of Manuscript:  Special Section PAPER (Special Issue on Innovation in Antennas and Propagation for Expanding Radio Systems)
Category: Mobile Antennas
Keyword: 
dipole antenna, parasitic element, triple-bands, base station, 
 Summary | Full Text:PDF
Calculation of Coupling between a Monopole Antenna and a Strip Line in a Shield Case for a Portable Telephone
Toru FUKASAWA Chiharu MIYAZAKI Shigeru MAKINO Shuji URASAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/03/25
Vol. E83-B  No. 3  pp. 505-510
Type of Manuscript:  Special Section PAPER (Special Issue on Recent Progress in Electromagnetic Compatibility Technology)
Category: EMC Evaluation
Keyword: 
shield case, strip line, antenna, 
 Summary | Full Text:PDF
Analysis of High-Tc Superconducting Microstrip Antenna Using Modified Spectral Domain Moment Method
Nozomu ISHII Toru FUKASAWA Kiyohiko ITOH 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1994/08/25
Vol. E77-C  No. 8  pp. 1242-1248
Type of Manuscript:  Special Section PAPER (Special Section on Superconducting Devices)
Category: HTS
Keyword: 
high-Tc superconducting, microstrip antenna, spectral domain moment method, three-fluid model, radiation efficiency, input impedance, 
 Summary | Full Text:PDF