Circuit board for mounting a band-pass filter

摘要

A circuit board for mounting a band-pass filter. An elongate through hole is formed through the ground surface of the circuit board for shielding the input and output terminals of a band-pass filter from each other. The through hole eliminates unexpected coupling between the input and output terminals within the circuit board. Solder which flows into the through hole allows the casing of the filter to closely contact the ground surface of the circuit board.