A method for stabilizing the performance variation of a primary radio
frequency (RF) device is provided that includes providing a secondary RF
device. An output signal is generated with the secondary RF device. The
output signal is provided to a feedback circuit. A feedback signal is
generated based on the output signal with the feedback circuit. The
feedback signal is provided to the secondary RF device. The output signal
is generated based on the feedback signal. The feedback signal is
provided to the primary RF device.