Patent ID: 6933806

Claim:
An electrical signal filter, comprising: a first filter housing member extending along a longitudinal direction from a first end thereof to an opposed second end thereof, and having an inner surface terminating at first and second side surfaces that extend from said first end to said second end; a second filter housing member extending along said longitudinal direction from a first end thereof to an opposed second end thereof, and having an inner surface terminating at first and second side surfaces that extend from said first end to said second end, said second filter housing member abutting said first filter housing member at a junction between said first and second side surfaces of said second filter housing member and said first and second side surfaces of said first filter housing member, respectively, to thereby define an internal filter cavity; a circuit board positioned within said filter cavity, said circuit board having at least one through-hole passing from a first surface thereof to an opposed second surface thereof, said at least one through-hole being plated with a conductive substance from said first surface of said circuit board to said second surface of said circuit board to form at least one plated ground hole passing through said circuit board from said first surface to said second surface thereof; and at least one ground post extending away from said inner surface of said first filter housing member in a direction substantially perpendicular to said longitudinal direction, said at least one ground post having at least a first portion having an outer dimension that is greater than an inner diameter of said at least one plated ground hole; wherein said circuit board is positioned within said filter cavity such that at least said first portion of said at least one ground post extends into said at least one plated ground hole to achieve secure ground contact between said circuit board and said first filter housing member in a solderless manner.