Patent ID: 9608303
Date: 2017-03-28
CPC Classifications: H01P,Y10T

Claim:
1. A digital elliptic filter, comprising: a plurality of conductive walls defining an enclosure disposed therein; a first conductive post disposed within the enclosure and having an end thereof electrically connected to a selected one of the plurality conductive walls, the post having a longitudinally extending stub cavity disposed therein; and a second conductive post disposed within the enclosure with an end thereof electrically connected to the selected conductive wall, the second conductive post having a conductive stub extending along a longitudinal axis of the second conductive post and disposed within the stub cavity, wherein the first and second conductive posts, conductive stub, and the plurality of conductive walls each comprise a plurality of layers of a conductive material, and are configured to have inductive and capacitive properties to provide a digital elliptic filter.