To easily control the filter characteristic of a filter module by placing a high frequency connector interface at a connection part formed between the 1st and 2nd dielectric filters which are prepared at the input and output sides of the dielectric filter module respectively.
A BPF(band pass filter) 1a, i.e., a 1st dielectric filter and a BEF(band elimination filter) 3a, i.e., a 2nd dielectric filter are cascaded to an input connector 4a and an output connector 4b respectively. A high frequency connector interface 2a is placed between the BPF 1a and the BEF 3a, and a high frequency connector 4c is connected to the interface 2a. Thus, the interface 2a separates two different filters BPF and BEF from each other to individually control them. As a result, both filters can be easily controlled in a short time.
SASAKI KANEMI
TANAKA KATSUMI
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