DocumentCode
709030
Title
A study of EMI from patterned ground structures
Author
Wallash, Albert ; Nguyen, Jack
Author_Institution
HGST, Western Digital Co., San Jose, CA, USA
fYear
2015
fDate
15-21 March 2015
Firstpage
97
Lastpage
100
Abstract
It is shown that a patterned ground structure (PGS) in a printed circuit board results in a significant increase in far-field radiation, compared to the same board without the PGS. Full-3D simulations, near-field scans, and far-field measurements are used to study and quantify the increased electromagnetic interference (EMI) due to the PGS. It is concluded that the increased EMI from a board using PGS devices for common-mode filter applications is an important consideration when the board is unshielded.
Keywords
electromagnetic interference; printed circuits; EMI; electromagnetic interference; far-field radiation; patterned ground structures; printed circuit board; Antenna measurements; Current measurement; Dielectric measurement; Electromagnetic interference; Microwave filters; Resonant frequency; Transmission line measurements; EBG; EMI common-mode filter; PGS; Patterned ground structure;
fLanguage
English
Publisher
ieee
Conference_Titel
Electromagnetic Compatibility and Signal Integrity, 2015 IEEE Symposium on
Conference_Location
Santa Clara, CA
Print_ISBN
978-1-4799-1992-5
Type
conf
DOI
10.1109/EMCSI.2015.7107666
Filename
7107666
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