Multilayer lowpass filter with improved ground plane configurati

Details Multilayer lowpass filter with improved ground plane configurati Multilayer lowpass filter with improved ground plane configurati

1997-01-17

1998-11-10

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333204, 333185, H01P 120

Patent

active

058349944

ABSTRACT:
A laminated lowpass filter (100) is disclosed. The filter (100) has: a stack of dielectric substrates (301-312) having a ground via (209); a pi network coupled between an input (202) and an output (202'); and the ground via (209) is conductively filled and extends substantially through the sheets of dielectric (301-312) connecting a first ground plane (102) to a second ground plane (104) and is spaced a predetermined distance between a first and a second leg of the pi network, to define an isolation barrier that substantially minimizes the passage of stray signals therebetween.

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