Keizo INAGAKI

Perturbation Analysis and Experimental Verification of Intermodulation and Harmonic Distortion for an Anti-Series Varactor Pair
Qing HAN Keizo INAGAKI Takashi OHIRA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/01/01
Vol. E88-C  No. 1  pp. 89-97
Type of Manuscript:  Special Section PAPER (Special Section on Recent Trends of Microwave and Millimeter-Wave Passive Circuit Components and Technologies for Improvement of Characteristics)
Category: 
Keyword: 
anti-series-varactor-pair, abrupt p-n junction, nonlinear distortion, perturbation method, 
 Summary | Full Text:PDF
Spatial Optical Signal Processing Beam Forming Network for 2-Dimensional Beam Steering
Keizo INAGAKI Yoshio KARASAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/07/01
Vol. E86-C  No. 7  pp. 1209-1217
Type of Manuscript:  Special Section PAPER (Special Issue on Recent Progress in Microwave and Millimeter-wave Photonics Technologies)
Category: Photonics for Antenna Systems
Keyword: 
optical control, beam forming network, 2-D beam steering, Fourier transform lens, graded index fiber lensed single mode fiber, 
 Summary | Full Text:PDF
Numerical Analysis of Nonlinear Distortion Generated from a Single Varactor and an Anti-Series Varactor Pair
Masami AKAIKE Takashi OHIRA Keizo INAGAKI Qing HAN 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/12/01
Vol. E85-C  No. 12  pp. 1990-1999
Type of Manuscript:  Special Section PAPER (Special Issue on Low-Distortion,High-Power,High-Efficiency Active Device and Circuit Technology)
Category: 
Keyword: 
nonlinear distortion, varactor, anti-series, harmonic distortion, nonlinear analysis, 
 Summary | Full Text:PDF
Harmonic Distortion Suppression Technique for Varactor-Loaded Parasitic Radiator Antennas
Qing HAN Keizo INAGAKI Kyouichi IIGUSA Robert SCHLUB Takashi OHIRA Masami AKAIKE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/12/01
Vol. E85-C  No. 12  pp. 2015-2021
Type of Manuscript:  Special Section PAPER (Special Issue on Low-Distortion,High-Power,High-Efficiency Active Device and Circuit Technology)
Category: 
Keyword: 
ESPAR antenna, varactor diode, nonlinear, harmonic distortion, reactive near-field measurement, 
 Summary | Full Text:PDF
Reactive-Field Anechoic Box for ESPAR Antenna Measurement
Qing HAN Keizo INAGAKI Kyouichi IIGUSA Robert SCHLUB Takashi OHIRA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/07/01
Vol. E85-C  No. 7  pp. 1451-1459
Type of Manuscript:  PAPER
Category: Electromagnetic Theory
Keyword: 
reactive-field anechoic box, backscattering characteristics, radio wave absorber, ESPAR antenna, reactive near field, 
 Summary | Full Text:PDF
Fourier Optical Processing Beamforming Network Using Optical Waveguide Arrays and Lens for Transmission and Reception
Tomohiro AKIYAMA Keizo INAGAKI Yoshihiko MIZUGUCHI Takashi OHIRA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/09/01
Vol. E84-B  No. 9  pp. 2413-2420
Type of Manuscript:  Special Section PAPER (Special Issue on Innovation in Antennas and Propagation for Expanding Radio Systems)
Category: Millimeter-Wave Antennas
Keyword: 
optically controlled array antenna, optical signal processing, phased array antenna, optical waveguide, beamforming network, 
 Summary | Full Text:PDF
An Optical Waveguide with High Birefringence and Birefringence Dispersion for Optical Beamforming Network in Multibeam Array Antenna
Weiwei HU Keizo INAGAKI Takashi OHIRA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/07/01
Vol. E84-B  No. 7  pp. 1801-1807
Type of Manuscript:  Special Section PAPER (Special Issue on Adaptive Array Antenna Techniques for Advanced Wireless Communications)
Category: Beamformer Techniques
Keyword: 
Ti:LiNbO3 optical waveguide, birefringence, optical beamforming network, multibeam phase array antenna, 
 Summary | Full Text:PDF
Beam Forming Characteristics of a Waveguide-Type Optical Phased Array Antenna
Yasushi MURAKAMI Keizo INAGAKI Yoshio KARASAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/04/25
Vol. E80-B  No. 4  pp. 617-624
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
antennas and propagation, optical antenna, phased array, beam forming, optical waveguide, 
 Summary | Full Text:PDF
Double-Layered Inclined Orbit Constellation for Advanced Satellite Communications Network
Kazuhiro KIMURA Keizo INAGAKI Yoshio KARASAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/01/25
Vol. E80-B  No. 1  pp. 93-102
Type of Manuscript:  Special Section PAPER (Special Issue on Advances in Satellite Communications toward Multimedia Era)
Category: System Technology
Keyword: 
low earth orbit, satellite communications, global network, optical inter-satellite link, double-layered constellation, 
 Summary | Full Text:PDF