Title :
Distributed effects of a gap in power/ground planes
Author :
Duan, Dah-Weih ; Rubin, Barry J. ; Magerlein, J.H.
Author_Institution :
IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA
Abstract :
A signal line running between two PCB power/ground planes, with one of the planes having a gap (split), was analyzed using full-wave electromagnetic tools. The gap inductance and the mutual coupling caused by the gap were examined, and distributed effects were observed. As a conclusion, a gap should always be AC-shorted, preferably in the immediate vicinity of critical signal lines
Keywords :
circuit analysis computing; electromagnetic field theory; inductance; packaging; printed circuits; AC-shorted gap; PCB power/ground planes; critical signal lines; distributed gap effects; full-wave electromagnetic analysis tools; gap inductance; mutual coupling; plane gap; plane split; power/ground plane gap; power/ground planes; signal line; Eddy currents; Electromagnetic analysis; Impedance; Inductance; Inductors; Moment methods; Mutual coupling; Printed circuits; Signal analysis; Voltage;
Conference_Titel :
Electrical Performance of Electronic Packaging, 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-5597-0
DOI :
10.1109/EPEP.1999.819227
