Patent ID: 8416883
Filing Date: 2013-04-09
Classification: H03F,H04B,H04L

Abstract:
1. A method of operating an integrated circuit radio transceiver to produce an outgoing Radio Frequency (RF) signal comprising: selecting a pre-distortion setting from a plurality of pre-determined pre-distortion settings; producing an outgoing digital signal using outgoing data and the pre-distortion setting; producing the RF signal based upon the outgoing digital signal; amplifying the RF signal by a power amplifier; coupling a specified load to the power amplifier output; enabling a receive path; coupling the receive path to the power amplifier output; receiving the RF frequency signal via the receive path, the receive path different from a feedback path that carries the feedback signal; determining the plurality of pre-determined pre-distortion settings using the receive path; measuring a voltage standing wave ratio of a feedback signal produced at the power amplifier output; selecting a different pre-distortion setting from the plurality of pre-determined pre-distortion settings based upon the voltage standing wave ratio; and decoupling the specified load and coupling an antenna to the power amplifier output to radiate the RF signal.