Patent ID: 8559186

Claim:
An apparatus comprising: a substrate; a conductor formed on a first layer; a patterned ground plane formed on a second layer under the conductor between the conductor and the substrate, the patterned ground plane having an open center area and comprising a plurality of shields, each shield having a plurality of slots, wherein the plurality of slots for each shield form a comb-like pattern that has slot openings on an outside edge and a common connection on an inside edge of a shield, wherein the shields are electrically isolated from each other by cuts located near the eight corners of the patterned ground plane, wherein slots are formed on the plurality of shields along the conductor and also at corners of the conductor, and wherein the patterned ground plane allows a magnetic field to pass through the patterned ground plane to the substrate; and a plurality of interconnects coupling the plurality of shields to circuit ground located at the center of the patterned ground plane, wherein each interconnect is coupled to an inner edge of a respective shield and the circuit ground.