Takeshi OSHIMA

Cavity-Backed Circularly Polarized Antenna Using L-Shaped Excitation Elements
Takashi YANAGI  Takeshi OSHIMA  Kazushi NISHIZAWA  Toru FUKASAWA  Hiroaki MIYASHITA  Yoshihiko KONISHI 
Publication:   B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2012/09/01
Vol. J95-B  No. 9  pp. 1044-1051
Type of Manuscript: Special Section PAPER (Special Section on Antennas and Propagation Technologies for Progress in Wireless Systems)
Category: 
Keyword: 
circularly polarized antenna,  cavity-backed antenna,  L-shaped element, 
  Summary |  Full Text(in Japanese):PDF (1.6MB)
A Broadband Branch-Line Hybrid Utilizing Open-Circuited Interdigital Sections
Takeshi OSHIMA  Takashi YANAGI  Toru FUKASAWA  Hiroaki MIYASHITA  Yoshihiko KONISHI 
Publication:   C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition)
Publication Date: 2011/10/01
Vol. J94-C  No. 10  pp. 296-305
Type of Manuscript: PAPER
Category: 
Keyword: 
90° hybrid,  branch-line,  broadband matching,  flat power-split,  interdigital section, 
  Summary |  Full Text(in Japanese):PDF (1.3MB)
A Dual-Band Matching Network for Loads Representable as a Series Resonant Circuit Based on Network Synthesis Theory
Takeshi OSHIMA  Toru FUKASAWA  Masataka OHTSUKA  Hiroaki MIYASHITA  Yoshihiko KONISHI 
Publication:   C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition)
Publication Date: 2009/12/01
Vol. J92-C  No. 12  pp. 823-832
Type of Manuscript: PAPER
Category: 
Keyword: 
matching networks,  dual-band,  network synthesis,  series resonance,  antennas, 
  Summary |  Full Text(in Japanese):PDF (561.3KB)
A Design Procedure of Branch- and Rat-Race-Type Couplers with Arbitrary Resistive Loads
Takeshi OSHIMA  Masataka OHTSUKA  Hiroaki MIYASHITA  Yoshihiko KONISHI 
Publication:   C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition)
Publication Date: 2009/07/01
Vol. J92-C  No. 7  pp. 268-276
Type of Manuscript: PAPER
Category: 
Keyword: 
microwave,  couplers,  hybrids,  arbitrary loads, 
  Summary |  Full Text(in Japanese):PDF (671KB)
A Design Procedure of Broadband Branch-Type Hybrids with Multi-Stage Matching Network
Takeshi OSHIMA  Masataka OHTSUKA  Hiroaki MIYASHITA  Yoshihiko KONISHI 
Publication:   C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition)
Publication Date: 2009/07/01
Vol. J92-C  No. 7  pp. 258-267
Type of Manuscript: PAPER
Category: 
Keyword: 
microwave,  hybrids,  broadband,  matching networks,  network synthesis, 
  Summary |  Full Text(in Japanese):PDF (858.9KB)
Design Theory of Open-Circuited Interdigital Couplers with Asymmetrical Cross-Section
Takeshi OSHIMA  Hideyuki OH-HASHI  Naofumi YONEDA  Masataka OHTSUKA  Moriyasu MIYAZAKI  Shigeru MAKINO 
Publication:   C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition)
Publication Date: 2007/04/01
Vol. J90-C  No. 4  pp. 344-350
Type of Manuscript: PAPER
Category: 
Keyword: 
couplers,  asymmetry,  interdigital,  c mode,  π mode, 
  Summary |  Full Text(in Japanese):PDF (274.4KB)
Simple Calculation Method of Transmission Characteristics Including Material Losses for Asymmetrical Coupled Lines in an Inhomogeneous Medium
Takeshi OSHIMA  Hideyuki OH-HASHI  Naofumi YONEDA  Masataka OHTSUKA  Moriyasu MIYAZAKI  Shigeru MAKINO 
Publication:   C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition)
Publication Date: 2007/03/01
Vol. J90-C  No. 3  pp. 265-273
Type of Manuscript: PAPER
Category: 
Keyword: 
couplers,  asymmetry,  interdigital,  c mode,  π mode, 
  Summary |  Full Text(in Japanese):PDF (335.7KB)