Shin-ichi YAMAMOTO


Phase Control and Calibration Characteristics of Optically Controlled Phased Array Antenna Feed Using Multiple SMFs
Daiki TAKEUCHI Wataru CHUJO Shin-ichi YAMAMOTO Yahei KOYAMADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/10/01
Vol. E94-C  No. 10  pp. 1634-1640
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Microwave and Millimeter-Wave Antennas
Keyword: 
optically controlled phased array antennaSMFLDmicrowavemillimeter-wavecalibration
 Summary | Full Text:PDF(883.6KB)

A Subsystem of Electromagnetic Wave Radiation and Propagation Estimation Using HTS Receiving Filters for S Band
Kazunori YAMANAKA Masafumi SHIGAKI Shin-ichi YAMAMOTO Shin-ichi KOZONO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/03/01
Vol. E90-C  No. 3  pp. 595-598
Type of Manuscript:  Special Section PAPER (Special Section on Innovative Superconducting Devices and Their Applications)
Category: 
Keyword: 
microwave filtersuperconductorradiationpropagationreceiver
 Summary | Full Text:PDF(752KB)

A Single-Layer Hollow-Waveguide 8-Way Butler Matrix
Shin-ichi YAMAMOTO Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/07/01
Vol. E89-C  No. 7  pp. 1080-1088
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
short-slot couplerlength reductionButler matrixwaveguide structuresingle-layerlow loss
 Summary | Full Text:PDF(989.5KB)

A Half-Sized Post-Wall Short-Slot Directional Coupler with Hollow Rectangular Holes in a Dielectric Substrate
Shin-ichi YAMAMOTO Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/07/01
Vol. E88-C  No. 7  pp. 1387-1394
Type of Manuscript:  Special Section PAPER (Special Section on Recent Technologies of Microwave and Millimeter-Wave Devices Focusing on Miniaturization and Advancement in Performance with Their Applications)
Category: Passive Circuits
Keyword: 
short-slot couplerlength reductionButler matrixpost-wall waveguidedielectric substraterectangular hole
 Summary | Full Text:PDF(2.1MB)

A Post-Wall Waveguide Slot Array with a Three-Way Power Divider on a Single-Layer Dielectric Substrate
Shin-ichi YAMAMOTO Nozomu HIKINO Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/04/01
Vol. E88-B  No. 4  pp. 1740-1742
Type of Manuscript:  LETTER
Category: Antennas and Propagation
Keyword: 
sectoral beampower dividerpost-wall waveguide
 Summary | Full Text:PDF(716.6KB)

A Beam Switching Slot Array with a 4-Way Butler Matrix Installed in Single Layer Post-Wall Waveguides
Shin-ichi YAMAMOTO Jiro HIROKAWA Makoto ANDO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/05/01
Vol. E86-B  No. 5  pp. 1653-1659
Type of Manuscript:  PAPER
Category: Antenna and Propagation
Keyword: 
Butler matrixswitching arraybase station antennapost-wall waveguidemillimeter-wave
 Summary | Full Text:PDF(1.5MB)