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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EMCJ | 2018-01-18 16:30 |
Okayama | [Special Talk]
EMC talked to grandchildren Liuji R. Koga (EM Consul.) |
[more] | ||
| EMCJ | 2015-05-15 16:25 |
Kagawa | Next Kagawa | [Special Talk]
Organization and Activities of IEEE and IEEE-EMCS Liuji Koga (EM Consulting)  EMCJ2015-17 |
A brief report of activities and organizations of IEEE and IEEE-EMCS observed by the author as a director at large of EM... [more] | EMCJ2015-17 pp.55-58 |
| EST | 2014-05-30 13:30 |
Tokyo | Simulation of Unintentional Radiated Emission with Common-mode Antenna Model Taking into Account Mode Conversion between Normal and Common Modes Yuri Wakaduki, Yoshitaka Toyota, Kengo Iokibe, Ryuji Koga (Okayama Univ.), Tetsushi Watanabe (Industrial Technology Center of Okayama Prefecture) EST2014-6 |
[more] | EST2014-6 pp.29-34 |
|
| EST, EMCJ, IEE-EMC [detail] | 2012-10-25 14:40 |
Miyagi | Tohoku Gakuin University(Tagajo Campus) | Preliminary study using full-wave simulation with respect to circuit expression of mode conversion due to imbalance difference between transmission lines Yoshitaka Toyota, Yuri Wakaduki, Kengo Iokibe, Ryuji Koga (Okayama Univ.), Tetsushi Watanabe (Ind Tech. Center of Okayama Prefecture) EMCJ2012-71 EST2012-55 |
[more] | EMCJ2012-71 EST2012-55 pp.43-48 |
| EMCJ | 2012-07-19 13:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Evaluation of Relationship between STP-cable Grounding and Mode Conversion Taking into Account Imbalance Factor Tatsuya Nobunaga, Yoshitaka Toyota, Kengo Iokibe, Ryuji Koga (Okayama Univ.), Tetsushi Watanabe (ITCO) EMCJ2012-32 |
[more] | EMCJ2012-32 pp.1-6 |
| EMCJ | 2011-11-25 14:20 |
Tokyo | Univ. of Electro-Communiations | Mode-equivalent Modeling and Identification of System with Cable Interconnection between Transmitter and Receiver Pairs (Part 3) Yoshitaka Toyota, Kota Sejima, Kengo Iokibe, Ryuji Koga (Okayama Univ.), Tetsushi Watanabe (ITCO) EMCJ2011-91 |
We focus on the expression by using modal equivalent-circuit model. The goal of this study is to clarify the mechanism o... [more] | EMCJ2011-91 pp.19-24 |
| EMCJ, MW, EST | 2011-05-27 10:20 |
Tokyo | NICT | Mode-equivalent Modeling and Identification of System with Cable Interconnection between Transmitter and Receiver Pairs (Part 2) Kota Sejima, Yoshitaka Toyota, Kengo Iokibe, Ryuji Koga (Okayama Univ.), Tetsushi Watanabe (ITCO) EMCJ2011-25 MW2011-22 EST2011-18 |
At the interface where two transmission lines with different current division factors are connected, there occurs mode c... [more] | EMCJ2011-25 MW2011-22 EST2011-18 pp.93-98 |
| EMCJ | 2010-11-19 12:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Mode-equivalent Modeling and Identification of System with Cable Interconnection between Transmitter and Receiver Pairs Yoshitaka Toyota (Okayama Univ.), Tetsushi Watanabe (ITCO), Kengo Iokibe, Ryuji Koga (Okayama Univ.) EMCJ2010-76 |
In the transmission system where a transmitter and receiver are connected with a cable at a certain distance above the s... [more] | EMCJ2010-76 pp.33-38 |
| EMCJ | 2010-07-15 15:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Effective Position of Decoupling Inductor Taking Parasitic Capacitances on Power Distribution Network Traces into Account Yusuke Yano, Kengo Iokibe, Yoshitaka Toyota, Ryuji Koga (Okayama Univ.) EMCJ2010-28 |
High-frequency current caused by simultaneous switching of digital gates can be increased with decoupling capacitors，bec... [more] | EMCJ2010-28 pp.39-44 |
| EMCJ, IEE-EMC | 2010-06-18 11:10 |
Osaka | Osaka Univ. | Linear Equivalent Circuit Model of Inverter in Microwave Oven for EMI Filter Design Kengo Iokibe (Okayama Univ.), Tetsushi Watanabe (Industrial Technology Center of Okayama Pref.), Kazuyuki Sakiyama, Yoshiyuki Saito (Panasonic), Yoshitaka Toyota, Ryuji Koga (Okayama Univ.) EMCJ2010-14 |
A Linear equivalent circuit model of inverter was proposed for applying to designing EMC filters to reduce the conducted... [more] | EMCJ2010-14 pp.25-30 |
| EMCJ | 2010-04-23 11:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Modeling and Identification of Common-mode System in Cable Interconnection between Transmitter and Receiver Pairs Kazuya Morimitsu, Nannan Song, Yoshitaka Toyota, Kengo Iokibe, Ryuji Koga (Okayama Univ.) EMCJ2010-4 |
In the transmission system where a transmitter and receiver are connected with a cable at a certain distance above the s... [more] | EMCJ2010-4 pp.19-24 |
| EMCJ | 2010-01-22 09:30 |
Okinawa | University of the Ryukyus | Development of a Equivalent Circuit Model with Transmission Line Model for Designing Filter Formed on Printed Circuit Boards Keisuke Matsumoto, Yoshitaka Toyota, Kengo Iokibe, Ryuji Koga (Okayama Univ.) EMCJ2009-112 |
Slit pattern formed on return plane of printed circuit boards behaves like a passive element. A defected ground structur... [more] | EMCJ2009-112 pp.81-86 |
| EMCJ, MW, IEE-MAG | 2009-10-23 13:20 |
Iwate | Iwate Univ. | Application of IC Macro Model (LECCS) to Bypass Circuit Design for Improving EMI/PI Performance Norimasa Oka, Kengo Iokibe, Yoshitaka Toyota, Ryuji Koga (Okayama Univ.) EMCJ2009-68 MW2009-117 |
An IC macro model for power current analysis, called linear equivalent circuit and current source (LECCS) model, is appl... [more] | EMCJ2009-68 MW2009-117 pp.141-146 |
| EMCJ | 2009-09-04 09:05 |
Kyoto | KEIHANNA PLAZA | Examination of EMC Macro Model LECCS-I/O with Two Current Sources Simulating Power and Output Currents of CMOS Inverter IC Tomoya Tasaka, Norimasa Oka, Kengo Iokibe, Yoshitaka Toyota, Ryuji Koga (Okayama Univ.) EMCJ2009-35 |
In the field of designing printed circuit boards (PCBs), EMC macro-models become increasingly useful to verify EMI perf... [more] |
EMCJ2009-35 pp.1-6 |
| EMCJ | 2009-06-05 14:25 |
Tokyo | Tokyo Big Sight (Tokyo International Exihibition Center) | De-embedding of Board Parasitics with T-Parameters for S-Parameter Measurements of Integrated Circuits on PCB
-- Examinations in One-port Measurements -- Kazuki Maeda, Kengo Iokibe, Yoshitaka Toyota, Ryuji Koga (Okayama Univ.) EMCJ2009-30 |
In measuring S-parameters of integrated circuits (ICs) mounted on a printed circuit board, it is necessary to de-embed p... [more] | EMCJ2009-30 pp.45-50 |
| EMCJ | 2009-04-24 13:05 |
Okayama | Effect of Frequency Step on Uncertainty of Measurement by Site VSWR Method Tetsushi Watanabe (Ind Tech. Center of Okayama Prefecture), Yoshitaka Toyota, Kengo Iokibe, Ryuji Koga (Okayama Univ.) EMCJ2009-1 |
EMI measurement over 1GHz must be operated in a free-space, open area test site. The validation method of free-space con... [more] | EMCJ2009-1 pp.1-6 |
|
| EMCJ | 2009-04-24 13:30 |
Okayama | Effect of Reducing Electromagnetic Noise between Power/Ground Planes with an EBG Pattern on Applying Noise Suppression Sheets Seiji Yano, Yoshitaka Toyota, Kengo Iokibe, Ryuji Koga (Okayama Univ.), Koichi Kondo, Shigeyoshi Yoshida (NEC TOKIN) EMCJ2009-2 |
Applying the electromagnetic bandgap (EBG) structure to power/ground planes of printed circuit boards (PCBs) helps preve... [more] | EMCJ2009-2 pp.7-12 |
|
| EMCJ | 2009-04-24 16:00 |
Okayama | [Special Talk]
Review over EMC subjects of electronic devices and the evolution of EMI model thereof Ryuji Koga (Okayama Univ.) EMCJ2009-7 |
The author devoted efforts to construct concise models amenable for quick calculation instead of the original “true mode... [more] | EMCJ2009-7 pp.35-38 |
|
| EMCJ, ITE-BCT | 2009-03-13 13:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Fast Calculation of Power-Bus Resonances in Printed Circuit Boards by Segmentation Method with Single Slit Segments Takahiro Hamagami, Yoshitaka Toyota, Kengo Iokibe, Ryuji Koga (Okayama Univ.) EMCJ2008-118 |
A fast algorithm based on a full cavity-mode resonator model of rectangular power-bus structures is able to quickly obta... [more] | EMCJ2008-118 pp.25-30 |
| EMCJ | 2008-07-17 13:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg | Estimation of Electromagnetic Emission from PCBs with a Connector through the Common-mode Antenna Model (part2)
-- Model Improvement by Considering Connector Inductance -- Yuri Wakaduki, Makoto Torigoe (Okayama Univ.), Tetsushi Watanabe (ITCO), Yoshitaka Toyota, Kengo Iokibe, Ryuji Koga (Okayama Univ.) EMCJ2008-32 |
In this paper, we apply a connector model with an inductance to the common-mode antenna model. The common-mode antenna m... [more] | EMCJ2008-32 pp.37-42 |
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