Influence of Adjacent Metal Cover Planes on EMC Filter Structures
T. Fischer, G. Schubert, M. Albach
IEICE Transactions on Communications
Volume: 93, Issue: 7, 2009
EMC, low-pass, conductive planes
This paper deals with the influence of metal cover planes close to SMD filter structures. The low-pass structures are used for EMC purpose and work in a frequency range of 100 kHz to 4 GHZ. It will be shown by measurement and simulation that a close cover plane changes the filter behavior significantly in dependency of the filter component used. For low and high impedance filter structures different influences are obtained; a parameter study was carried out in order to derive design rules.
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