Patent ID: 7333446
Filing Date: 2008-02-19
Classification: H04B

Abstract:
1. A filter assembly for a two-way communication station having communication circuitry selectably operated at a frequency-band set, said filter assembly comprising: a first duplexer filter selectably coupled to the communication circuitry, said first duplexer filter exhibiting frequency pass bands at frequencies of a first frequency-band subset of the frequency-band set; at least a second duplexer filter also selectably coupled to the communication circuitry, at least said second duplexer filter exhibiting frequency pass bands at frequencies of at least a second frequency-band subset of the frequency-band set; and a single switch connected to both said first duplexer filter, to said second duplexer filter, and to the communication circuitry of the two-way communication station, said single switch for switchingly coupling said first duplexer filter with receive circuitry and transmit circuitry of the communication circuitry and a least said second duplexer filter with the communication circuitry, wherein said first duplexer filter comprises a first-duplexer transmit filter part and a first-duplexer receive filter part, the first duplexer transmit filter part coupled to the transmit circuitry and the first-duplexer receiver filter part coupled to the receive circuitry when said single switch couples said first duplexer filter with the communication circuitry.