Takeshi OSHIMA


Metal 3D-Printed T-Junction Ortho-Mode-Transducer with an Offset Stepped Post
Hidenori YUKAWA Yu USHIJIMA Motomi ABE Takeshi OSHIMA Naofumi YONEDA Moriyasu MIYAZAKI 
Publication:   
Publication Date: 2019/01/01
Vol. E102-C  No. 1  pp. 56-63
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
waveguideantenna feedortho-mode-transducer3D-printer
 Summary | Full Text:PDF(1.8MB)

Ka-Band Branch Line Coupler Applied Hexagonal Waveguide Suitable for Additive Manufacturing
Motomi ABE Hidenori YUKAWA Yu USHIJIMA Takuma NISHIMURA Takeshi OSHIMA Takeshi YUASA Naofumi YONEDA 
Publication:   
Publication Date: 2018/10/01
Vol. E101-C  No. 10  pp. 805-814
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
3D printeradditive manufacturingdirect metal laser sinteringhexagonal waveguidebranch line coupler
 Summary | Full Text:PDF(2.8MB)

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 shifterdielectricM-shapedbase-station antenna
 Summary | Full Text:PDF(2.2MB)

Construction and Design Equations of a Lumped Element Dual-Band Wilkinson Divider
Takeshi OSHIMA Masataka OHTSUKA Hiroaki MIYASHITA Yoshihiko KONISHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2009/10/01
Vol. E92-C  No. 10  pp. 1322-1324
Type of Manuscript:  LETTER
Category: Microwaves, Millimeter-Waves
Keyword: 
microwavedual-bandWilkinson dividerlumped elementcompact
 Summary | Full Text:PDF(200.5KB)