Stripline interdigital band-pass filter

摘要

There is disclosed a stripline interdigital filter fabricated in a self-supporting structure and including a plurality of parallel-coupled resonators. The parallel-coupled resonators are disposed between first and second ground planes, which first ground plane being removably mounted to the filter housing to facilitate interchanging of the first ground plane with another ground plane so dimensioned that the spacing between the parallel-coupled resonators and the first ground plane is varied a predetermined amount whereby the band-pass characteristics of the filter are varied.