Title :
Common mode current prediction from normal mode voltage of printed circuit board with limited width ground pattern
Author :
Watanabe, Toshio ; Wada, Osami ; Koga, Ryuji
Author_Institution :
Ind. Technol. Center of Okayama, Okayama, Japan
Abstract :
Radiated emission due to common mode current is usually dominant in total emission. The common mode current is generated when the ground width of the microstrip structure is narrow. A procedure is proposed to predict common mode current from normal mode voltage at a point where cross-sectional structure is varying. As a result, the predicted spectrum and distribution of common mode current agree well with measured data
Keywords :
electromagnetic interference; equivalent circuits; printed circuit testing; printed circuits; EMI; common mode current prediction; limited width ground pattern; microstrip structure; normal mode voltage; printed circuit board; radiated emissions; varying cross-sectional structure; Circuit analysis; Circuit testing; Connectors; Current measurement; Distributed parameter circuits; Driver circuits; Microstrip; Printed circuits; Transmission line measurements; Voltage;
Conference_Titel :
Electromagnetic Compatibility, 1999 International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
4-9980748-4-9
DOI :
10.1109/ELMAGC.1999.801303
