A HIGH SELECTIVITY RF FILTER BANK BY COMBINING MULTIPLE FILTERS IN A MOBILE COMMUNICATION REPEATER

摘要

A high selectivity RF filter bank by combining multiple filters in a mobile communication repeater is provided to simplify an overall structure of a mobile communication repeater and reduce a cost. A BPF(Band Pass Filter)(211) filters a frequency signal corresponding to a pass band of an RF signal. The first resonance notch filter(212) removes low frequency signals outside the pass band which have not been completely removed yet by the BPF. The second resonance notch filter(213) removes high frequency signals outside the pass band which have not been completely removed yet by the BPF.