Patent ID: 6560087
Filing Date: 2003-05-06
Classification: H01T

Abstract:
An electronic signal filter comprising:a metal housing adapted to be electrically grounded; a circuit board positioned within said housing, having a first area and a second area; an electrically conductive trace formed on a portion of a top surface of said circuit board providing electrical communication between said first and second areas of said circuit board; and a metal shield connected to said housing, in a position between said first and second areas of said circuit board, said metal shield extending in a direction substantially perpendicular to the plane of the circuit board and having a slot formed therein for receiving said portion of said circuit board on which said electrically conductive trace is formed, said slot being dimensioned to provide a space between said metal shield and said conductive trace, wherein the dimension of said space is selected to shunt current passing through said conductive trace to ground in the event of a voltage surge passing through the filter.