Patent ID: 7111271

Claim:
An inductive filter comprising: a dielectric board having a top surface and a bottom surface; a series of plated through hole (PTH) vias formed in the dielectric board; conductive material traces on the top surface and the bottom surface that electrically connect the PTH vias, wherein adjacent PTH vias are electrically connected by a trace on either the top surface or the bottom surface, and wherein the adjacent PTH vias in the series alternate between being electrically connected by a trace on the top surface or electrically connected by a trace on the bottom surface; at least one additional series of PTH vias formed in the dielectric board; and additional conductive material traces on the top surface and the bottom surface that electrically connect each of the PTH vias in the at least one additional series, wherein adjacent PTH vias in the at least one additional series alternate between being electrically connected by traces on the top surface or the bottom surface.