Patent ID: 6128478
Filing Date: 2000-10-03
Classification: H03F,H04B

Abstract:
A radio frequency amplifier structure, comprising:a first radio frequency amplifier stage that applies a first gain to a radio frequency signal to produce a first amplified radio frequency signal;a signal coupler, coupled to an output of the first radio frequency amplifier stage, that couples a portion of the first amplified radio frequency signal to produce an attenuated first amplified radio frequency signal;a second radio frequency amplifier stage, coupled to the signal coupler, that applies a second gain to the attenuated first amplified radio frequency signal to produce a second amplified radio frequency signal; anda signal combiner, coupled to the output of the first radio frequency amplifier stage and an output of the second radio frequency amplifier stage, that combines the first amplified radio frequency signal and the second amplified radio frequency signal.