Hatsuo YABE

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 model, GaAs FET, simulation, large 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 model, mm-wave, GaAs FET, simulation, 
 Summary | Full Text:PDF(1.1MB)
Microwave Imaging of Perfectly Conducting Cylinders from Real Data by Micro Genetic Algorithm Coupled with Deterministic Method
Fengchao XIAO Hatsuo YABE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/12/25
Vol. E81-C  No. 12  pp. 1784-1792
Type of Manuscript:  Special Section PAPER (Special Issue on Computational Electromagnetics)
Category: 
Keyword: 
inverse problems, image reconstruction, microwave imaging, genetic algorithms, 
 Summary | Full Text:PDF(815.3KB)
An Efficient Finite Element-Integral Equation Method for Electromagnetic Scattering from Metallic Cylinders with Arbitrary Cross Sections
Fengchao XIAO Hatsuo YABE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/10/25
Vol. E81-C  No. 10  pp. 1648-1654
Type of Manuscript:  PAPER
Category: Electromagnetic Theory
Keyword: 
finite element methods, electromagnetic scattering, conducting bodies, 
 Summary | Full Text:PDF(591.4KB)
Rigorous Design of Iris-Coupled Waveguide Filters by Field-Theory-Based Approach and Genetic Algorithms
Fengchao XIAO Hatsuo YABE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/06/25
Vol. E81-C  No. 6  pp. 934-940
Type of Manuscript:  Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Module Technology)
Category: Passive Element
Keyword: 
computer-aided design, waveguide filters, boundary-element methods, genetic algorithms, 
 Summary | Full Text:PDF(650.7KB)
Measurement and Prediction of Two-Dimensional Fading Map in a Hallway
Hajime SUZUKI Ananda S. MOHAN Jian-Guo WANG Hatsuo YABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/09/25
Vol. E79-B  No. 9  pp. 1192-1198
Type of Manuscript:  Special Section PAPER (Special Issue on Personal Communications)
Category: Radio propagation and channel modeling
Keyword: 
indoor radio propagation, multipath fading, ray tracing, 
 Summary | Full Text:PDF(600.4KB)
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-port, reflectometer, random 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-embedding, six-port, microwave measurement, calibration, 
 Summary | Full Text:PDF(390KB)