Band-stop filter effect of power/ground plane on through-hole signal via in multilayer PCB

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The effect of the power/ground plane on the through-hole signal via is analyzed in a viewpoint of a band-stop filter. When the through-hole signal via passes through the power/ground plane, the return current path discontinuity of the through-hole signal via occurs due to the high impedance of the power/ground plane. Since the high impedance is produced by the power/ground plane resonance, it acts as a band-stop filter, which is connected to the signal trace in series. Therefore, the power/ground plane filters off its resonance frequency component by absorbing and reflecting from the signal on the through-hole signal via, and consequently the signal distortion, the power/ground plane noise voltage, and the consequent radiated emission occur. With S-parameter and TDR-TDT measurements, the band-stop effect of the power/ground plane on the through-hole signal via is confirmed. And then, this analysis is applied to the clock transmission through the through-hole signal via to obtain the clearer confirmation. The measurements of the distorted clock waveforms, the induced power/ground plane noise voltages, and the radiated emissions depending on the power/ground plane impedance around the through-hole signal via are shown.
Publisher
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Issue Date
2006-04
Language
English
Article Type
Article
Citation

IEICE TRANSACTIONS ON ELECTRONICS, v.E89C, pp.551 - 559

ISSN
0916-8524
DOI
10.1093/ietele/e89-c.4.551
URI
http://hdl.handle.net/10203/18215
Appears in Collection
EE-Journal Papers(저널논문)
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