Osami WADA


Equivalent-Circuit Model for Meta-Atoms Consisting of Wired Metallic Spheres
Takashi HISAKADO Keisuke YOSHIDA Tohlu MATSUSHIMA Osami WADA 
Publication:   
Publication Date: 2017/03/01
Vol. E100-C  No. 3  pp. 305-312
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
metamaterialmeta-atomequivalent circuitwired metallic spheresPEEC
 Summary | Full Text:PDF(695.6KB)

Connector Model for Use in Common-Mode Antenna Model Used to Estimate Radiation from Printed Circuit Boards with Board-to-Board Connector
Yuri WAKADUKI Tetsushi WATANABE Yoshitaka TOYOTA Kengo IOKIBE Liuji R. KOGA Osami WADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/03/01
Vol. E99-B  No. 3  pp. 695-702
Type of Manuscript:  PAPER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
common-mode radiationcommon-mode antenna modelcurrent division factor
 Summary | Full Text:PDF(1.7MB)

Modeling of Bulk Current Injection Setup for Automotive Immunity Test Using Electromagnetic Analysis
Yosuke KONDO Masato IZUMICHI Kei SHIMAKURA Osami WADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/07/01
Vol. E98-B  No. 7  pp. 1212-1219
Type of Manuscript:  Special Section PAPER (Special Section on Electromagnetic Compatibility Technology in Conjunction with Main Topics of EMC'14/Tokyo)
Category: 
Keyword: 
conducted susceptibilitybulk current injectionS-parameterelectromagnetic analysis
 Summary | Full Text:PDF(3.1MB)

FOREWORD
Osami WADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/07/01
Vol. E98-B  No. 7  pp. 1142-1142
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(288.2KB)

Calculation of Common-Mode Radiation from Single-Channel Differential Signaling System Using Imbalance Difference Model
Tohlu MATSUSHIMA Tetsushi WATANABE Yoshitaka TOYOTA Ryuji KOGA Osami WADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/07/01
Vol. E93-B  No. 7  pp. 1739-1745
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Electromagnetic Compatibility Technology in Conjunction with Main Topics of EMC'09/Kyoto)
Category: PCB and Circuit Design for EMI Control
Keyword: 
common-mode radiationdifferential transmission lineimbalance difference modelguard trace
 Summary | Full Text:PDF(4.2MB)

Suppression of Guard-Trace Resonance by Matched Termination for Reducing Common-Mode Radiation
Tetsushi WATANABE Tohlu MATSUSHIMA Yoshitaka TOYOTA Osami WADA Ryuji KOGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/07/01
Vol. E93-B  No. 7  pp. 1746-1753
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Electromagnetic Compatibility Technology in Conjunction with Main Topics of EMC'09/Kyoto)
Category: PCB and Circuit Design for EMI Control
Keyword: 
printed circuit boardcommon mode radiationguard traceimbalance difference modelcurrent division factor
 Summary | Full Text:PDF(1021.4KB)

Increase of Common-Mode Radiation due to Guard Trace Voltage and Determination of Effective Via-Location
Tohlu MATSUSHIMA Tetsushi WATANABE Yoshitaka TOYOTA Ryuji KOGA Osami WADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/06/01
Vol. E92-B  No. 6  pp. 1929-1936
Type of Manuscript:  Special Section PAPER (Special Section on 3rd Pan-Pacific EMC Joint Meeting -- PPEMC'08--)
Category: 
Keyword: 
common-mode radiationimbalance difference modelprinted circuit boardguard traceground via
 Summary | Full Text:PDF(686.6KB)

Evaluation of EMI Reduction Effect of Guard Traces Based on Imbalance Difference Model
Tohlu MATSUSHIMA Tetsushi WATANABE Yoshitaka TOYOTA Ryuji KOGA Osami WADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/06/01
Vol. E92-B  No. 6  pp. 2193-2200
Type of Manuscript:  PAPER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
PCBcommon-mode radiationimbalance difference modelguard traceoptimum design
 Summary | Full Text:PDF(789.4KB)

Importance and Limitations of Modeling Parasitic Capacitance between Package and PCB for Power Bus Noise and Radiation
Umberto PAOLETTI Takashi HISAKADO Osami WADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/06/01
Vol. E92-B  No. 6  pp. 1937-1944
Type of Manuscript:  Special Section PAPER (Special Section on 3rd Pan-Pacific EMC Joint Meeting -- PPEMC'08--)
Category: 
Keyword: 
common modeparasitic capacitancepackagesimultaneous switching noise
 Summary | Full Text:PDF(606.9KB)

De-Embedding Technique for the Extraction of Parasitic and Stray Capacitances from 1-Port Measurements
Umberto PAOLETTI Osami WADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/06/01
Vol. E90-B  No. 6  pp. 1298-1304
Type of Manuscript:  Special Section PAPER (Special Section on 2nd Pan-Pacific EMC Joint Meeting--PPEMC'06--)
Category: Printed Circuit Board
Keyword: 
capacitancemeasurementparasiticde-embedding
 Summary | Full Text:PDF(529.9KB)

Modeling and Simulation of Via-Connected Power Bus Stacks in Multilayer PCBs
Zhi Liang WANG Osami WADA Takashi HARADA Takahiro YAGUCHI Yoshitaka TOYOTA Ryuji KOGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/08/01
Vol. E88-B  No. 8  pp. 3176-3181
Type of Manuscript:  Special Section PAPER (Special Section of 2004 International Symposium on Electromagnetic Compatibility)
Category: Printed Circuit Boards
Keyword: 
power bus stack and modelingcavity-mode modelvia interconnectEMI
 Summary | Full Text:PDF(803.3KB)

A Prediction Method of Common-Mode Excitation on a Printed Circuit Board Having a Signal Trace near the Ground Edge
Tetsushi WATANABE Hiroshi FUJIHARA Osami WADA Ryuji KOGA Yoshio KAMI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/08/01
Vol. E87-B  No. 8  pp. 2327-2334
Type of Manuscript:  PAPER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
common modeEMIprinted circuit boardcurrent division factorboundary element methodground plane
 Summary | Full Text:PDF(989.5KB)

Power Current Model of LSI/IC Containing Equivalent Internal Impedance for EMI Analysis of Digital Circuits
Yukihiro FUKUMOTO Yasuo TAKAHATA Osami WADA Yoshitaka TOYOTA Takuya MIYASHITA Ryuji KOGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/11/01
Vol. E84-B  No. 11  pp. 3041-3049
Type of Manuscript:  PAPER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
EMILSI/ICpower bus noisesimulation modelhigh-frequency current
 Summary | Full Text:PDF(997.2KB)

FOREWORD
Takashi IWASAKI Nobuo KUWABARA Masao TAKI Noboru SCHIBUYA Osamu HASHIMOTO Osami WADA Takashi HARADA Yukio YAMANAKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/03/25
Vol. E83-B  No. 3  pp. 433-434
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(408.7KB)

Common-Mode-Current Generation Caused by Difference of Unbalance of Transmission Lines on a Printed Circuit Board with Narrow Ground Pattern
Tetsushi WATANABE Osami WADA Takuya MIYASHITA Ryuji KOGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/03/25
Vol. E83-B  No. 3  pp. 593-599
Type of Manuscript:  Special Section PAPER (Special Issue on Recent Progress in Electromagnetic Compatibility Technology)
Category: EMC Design of PCB
Keyword: 
EMC technologydigital circuitprinted circuit boardmicrostrip linecommon mode currentnarrow ground
 Summary | Full Text:PDF(867.2KB)

Linear Equivalent Circuit of a Digital Gate for Characterization of Malfunction Mechanism
Naoki KAGAWA Osami WADA Ryuji KOGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/11/25
Vol. E80-B  No. 11  pp. 1652-1653
Type of Manuscript:  Special Section LETTER (Special Issue on EMC Implications of Densely Mounted Electronic Devices)
Category: 
Keyword: 
digital circuitmalfunctionexternal noisejitterscircuit resonanceCMOS logic IC
 Summary | Full Text:PDF(154.6KB)

Prediction of Far-Field EMI Spectrum of Differential Mode Emission from a Digital PCB by Near-Field Measurement
Makoto TORIGOE Takuya MIYASHITA Osami WADA Ryuji KOGA Tetsushi WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/11/25
Vol. E80-B  No. 11  pp. 1633-1638
Type of Manuscript:  Special Section PAPER (Special Issue on EMC Implications of Densely Mounted Electronic Devices)
Category: 
Keyword: 
digital circuitEMIdifferential mode emissionnear-field EMIfar-field EMI
 Summary | Full Text:PDF(468.4KB)

FOREWORD
Ryuji KOGA Osami WADA Yutaka AKIBA Hiroshi INOUE Yoshio KAMI Kohji KOSHIJI Akihisa SAKURAI Noboru SCHIBUYA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/11/25
Vol. E80-B  No. 11  pp. 1593-1593
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(128.4KB)

Eigenmode Analysis of Whispering Gallery Modes of Pillbox-Type Optical Resonators Utilizing the FE-BPM Formulation
Anis AHMED Ryuichi KOYA Osami WADA Ming WANG Ryuji KOGA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/11/25
Vol. E78-C  No. 11  pp. 1638-1645
Type of Manuscript:  PAPER
Category: Electromagnetic Theory
Keyword: 
optical integrated circuitwhispering gallery modeoptical resonatorseigenmode analysis
 Summary | Full Text:PDF(689.1KB)

Prediction of Peak Frequencies on Electromagnetic Emission from a Signal Line on a Printed Circuit Board
Takuya MIYASHITA Osami WADA Ryuji KOGA Hiroya SANO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/02/25
Vol. E78-B  No. 2  pp. 181-187
Type of Manuscript:  Special Section PAPER (Special Issue on Electromagnetic Compatibility)
Category: 
Keyword: 
near-field electromagnetic emissionpredictionEMI measurementsimulationprinted circuit board
 Summary | Full Text:PDF(543.2KB)

Power-Sum Estimation of Electromagnetic Noise Radiated from High-Speed CMOS Printed Circuit Boards
Osami WADA Megumi KOSAKA Hidemi OKA Ryuji KOGA Hiroya SANO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1992/03/25
Vol. E75-B  No. 3  pp. 165-173
Type of Manuscript:  Special Section PAPER (Special Issue on Measurements and Control of Electromagnetic Interference)
Category: 
Keyword: 
electromagnetic noiseradiationPCBCMOSestimation
 Summary | Full Text:PDF(820.1KB)