Koh HASHIMOTO


Loss of Post-Wall Waveguides and Efficiency Estimation of Parallel-Plate Slot Arrays Fed by the Post-Wall Waveguide in the Millimeter-Wave Band
Yuanfeng SHE Thi Huong TRAN Koh HASHIMOTO Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/03/01
Vol. E94-C  No. 3  pp. 312-320
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
post-wall waveguideeffective conductivitytransmission lossantenna efficiencyloss factor
 Summary | Full Text:PDF(2.1MB)

A Post-Wall Center-Feed Waveguide Circuit Consisting of T-Junctions for Reducing the Slot-Free Area in a Parallel Plate Slot Array Antenna
Koh HASHIMOTO Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2010/07/01
Vol. E93-C  No. 7  pp. 1047-1054
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
millimeter-wave antennaspost-wall waveguidesparallel plate waveguidesslot array antennascenter-feed antennas
 Summary | Full Text:PDF(3.5MB)

Design of Post-Wall Feed Waveguide for a Parallel Plate Slot Array by an Analysis Model with Corrected Solid-Walls
Koh HASHIMOTO Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/06/01
Vol. E93-B  No. 6  pp. 1566-1573
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
millimeter-wave antennapost-wall waveguideparallel plate waveguideslot array antennamethod of moments
 Summary | Full Text:PDF(1.9MB)