Toshiyuki YAKABE


A Vector Network Analyzer Based on Seven-Port Wave-Correlator
Toshiyuki YAKABE Fengchao XIAO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/07/01
Vol. E88-C  No. 7  pp. 1483-1489
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: Measuring Techniques
Keyword: 
microwave measurementsix-portseven-portVNAwave-correlator
 Summary | Full Text:PDF(839.7KB)

Fullwave MoM-SOC Technique for Extraction of Equivalent Circuit Models of Coplanar Waveguide Discontinuities: CPW- and CSL-Mode Cases
Lei ZHU Toshiyuki YAKABE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/11/01
Vol. E86-C  No. 11  pp. 2292-2299
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
coplanar waveguide discontinuityCPW- and CSL-modeequivalent circuit modelmethod of momentsshort-open calibration
 Summary | Full Text:PDF(1.6MB)

An Imaging System for EM Emitting Sources Using a Six-Port Interferometer
Hiroshi HIRAYAMA Toshiyuki YAKABE Yoshio KAMI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/12/01
Vol. E84-C  No. 12  pp. 1885-1891
Type of Manuscript:  Special Section PAPER (Special Issue on New Technologies in Signal Processing for Electromagnetic-wave Sensing and Imaging)
Category: 
Keyword: 
microwave imagingmicrowave holographysix-port interferometerEMC
 Summary | Full Text:PDF(1MB)

A Comprehensive Nonlinear GaAs FET Model Suitable for Active and Passive Circuits Design
Kohei FUJII Fadhel M. GHANNOUCHI Toshiyuki YAKABE Hatsuo YABE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/07/01
Vol. E84-C  No. 7  pp. 881-890
Type of Manuscript:  Special Section PAPER (Special Issue on Techniques for Constructing Microwave Simulators--Design and Analysis Tools for Electromagnetic Fields, Circuits, and Antennas--)
Category: Modeling of Nonlinear Microwave Circuits
Keyword: 
nonlinear modelGaAs FETsimulationlarge signal
 Summary | Full Text:PDF(1.5MB)

A Nonlinear GaAs FET Model Suitable for Active and Passive MM-Wave Applications
Kohei FUJII Yasuhiko HARA Fadhel M. GHANNOUCHI Toshiyuki YAKABE Hatsuo YABE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/02/25
Vol. E83-A  No. 2  pp. 228-235
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
nonlinear modelmm-waveGaAs FETsimulation
 Summary | Full Text:PDF(1.1MB)

Variance Distribution of Reflection Coefficients in Six-Port Reflectometer
Manabu KINOSHITA Hajime SUZUKI Toshiyuki YAKABE Hatsuo YABE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1994/06/25
Vol. E77-C  No. 6  pp. 930-934
Type of Manuscript:  Special Section PAPER (Special Issue on Measurement Techniques for Microwave/Millimeter Wave)
Category: 
Keyword: 
six-portreflectometerrandom error
 Summary | Full Text:PDF(488.4KB)

A Simple Adapter De-Embedding Method in the Six-Port Calibration Process Using a Scalar Analyzer
Toshiyuki YAKABE Hatsuo YABE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1994/06/25
Vol. E77-C  No. 6  pp. 925-929
Type of Manuscript:  Special Section PAPER (Special Issue on Measurement Techniques for Microwave/Millimeter Wave)
Category: 
Keyword: 
de-embeddingsix-portmicrowave measurementcalibration
 Summary | Full Text:PDF(390KB)