Patent ID: 8565814

Claim:
A circuit for efficient wireless communication, comprising: an antenna port to be coupled to an antenna, wherein the antenna is adapted to receive wireless signals having multiple frequency components; multiple reception path ports coupled to the antenna port to isolate different respective frequency components included in the wireless signals; multiple filter elements having respective inputs coupled to the multiple reception path ports, respectively, where at least two of the filter elements cooperatively form a differential output signal on an output terminal common to the at least two filter elements; a single amplification element coupled to the common output terminal and adapted to provide an amplified signal based on the differential output signal, wherein no amplification elements other than the single amplification element are coupled to the common output terminal; and multiple phase shift selection circuits respectively associated multiple reception paths and continuously physically coupled to the antenna, wherein each phase shift selection circuit is adapted to provide an approximately matched impedance for its own respective frequency component while concurrently providing an unmatched impedance for the other frequency components.