Abstract: Systems and methods are provided for an antenna switch module (300) for an electronic device (302) including wireless communication circuitry (308) and an antenna (304) configured to transmit and receive signals over a plurality of frequency bands. The antenna switch module may include a plurality of antenna switches (310, 312) positioned in series and configured to pass signals between the antenna and wireless communication circuitry and to selectively operate in one of the bands. The first antenna switch (310) may include a plurality of pins (314) arranged in a first configuration, and the second antenna switch (312) may include a plurality of pins (316) arranged in a second configuration that is a mirror image of the first configuration. The antenna switch module may further include a plurality of non-overlapping signal paths (318) configured to selectively deliver signals between the antenna switches, each signal path being associated with a respective band.

Abstract: Systems and methods are provided for an antenna switch module (300) for an electronic device (302) including wireless communication circuitry (308) and an antenna (304) configured to transmit and receive signals over a plurality of frequency bands. The antenna switch module may include a plurality of antenna switches (310, 312) positioned in series and configured to pass signals between the antenna and wireless communication circuitry and to selectively operate in one of the bands. The first antenna switch (310) may include a plurality of pins (314) arranged in a first configuration, and the second antenna switch (312) may include a plurality of pins (316) arranged in a second configuration that is a mirror image of the first configuration. The antenna switch module may further include a plurality of non-overlapping signal paths (318) configured to selectively deliver signals between the antenna switches, each signal path being associated with a respective band.

Abstract: A method and apparatus for amplifying a feedforward linear power using a pilot tone hopping are disclosed. The method in a feedforward linear power amplifier system first determines an operating frequency signal for amplification from a radio frequency (RF) signal applied to the linear amplifier system. A pilot frequency signal is determined from the previously determined operating frequency signal, and the decided pilot frequency signal is hopped into an upper sideband or lower sideband of the operational frequency bandwidth of the applied RF signal and the determined pilot frequency signal is output to an input port of a main amplifier. One typical advantage of the method is that distortion component suppression characteristics in the wide operating frequency bandwidth are obtained by only one pilot signal generator and use of a control/detect device leads to simplicity of the circuit.