Patent ID: 7479857
Filing Date: 2009-01-20
Classification: H01G,H01L,H01P,H05K

Abstract:
1. A cluster resonator, comprising: a first conducting plane; a second substantially parallel conducting plane; a cluster of vias of essentially uniform length oriented substantially normal to the conducting planes and interposed therebetween, each via in the cluster comprising a first end and a second end; a first conducting pad disposed in a third plane substantially parallel and proximate the first conducting plane and connected to the vias of the cluster of vias proximate their first ends; a second conducting pad disposed in a fourth plane substantially parallel and proximate the second conducting plane and connected to the vias of the cluster of vias proximate their second ends, wherein the vias are physically connected to only the first and second conducting pads; wherein the first and second conducting pad is internal relative to the first and second conducting planes; and wherein the cluster resonator forms a physically isolated electrically conductive structure having a preselected reactance that provides an electromagnetically resonant shunt circuit between the conducting planes over a desired frequency band.