Patent ID: 8301106

Claim:
A communication device, comprising: an integrated circuit configured to output a transmit signal and to receive a feedback RF signal; a stacked CMOS power amplifier (PA) and radio frequency (RF) coupler device, comprising: a CMOS power amplifier (PA) die configured to receive the transmit signal and to output an amplified transmit signal; and a radio frequency (RF) coupler device configured to receive the amplified transmit signal, to output an antenna transmit signal, and to output a feedback RF signal proportional to the antenna transmit signal; wherein the CMOS PA die and the RF coupler device are stacked on top of and electrically coupled to each other; and wherein the CMOS PA die and the RF coupler device are combined within a single semiconductor package; wherein the integrated circuit is further configured to utilize the feedback RF signal to provide a transmit power control signal to the CMOS power amplifier die within the stacked CMOS power amplifier (PA) and radio frequency (RF) coupler device.