Multi-band filter including a plurality of parallel filters each configured to provide a particular effective path length

摘要

A multi-band filter is disclosed which includes an input manifold; an output manifold; and a plurality of filters connected in parallel between the input manifold and output manifold. The filters have a first section proximal to the input manifold which is matched to the input manifold and a second section proximal to the output manifold which is matched to the output manifold.

主权项

1. A multi-band filter comprising:
an input manifold; an output manifold; and a plurality of filters each connected in parallel between the input manifold and the output manifold, wherein: each of the plurality of filters has a first section proximal to the input manifold which is matched to the input manifold, and a second section proximal to the output manifold which is matched to the output manifold; each filter is a single integrated filter directly connected between the input manifold and the output manifold; each filter is configured to pass a distinct pass band and requires a particular effective path length between the input manifold and the output manifold of the multi-band filter, respectively; and at least one of the input manifold and the output manifold comprises one or more stepped sections configured to provide the respective particular effective path length through each corresponding filter.