CPC H03F 3/195 (2013.01) [H03F 1/56 (2013.01); H03F 2200/318 (2013.01); H03F 2200/451 (2013.01); H03F 2200/537 (2013.01)] | 34 Claims |
1. A radio frequency (RF) amplifier device comprising:
an input stage configured to receive an RF input signal;
an amplification stage configured to generate an amplified RF signal based at least in part on the RF input signal, wherein the amplification stage has a first frequency-dependent profile; and
a transformer comprising:
a first winding configured to receive the amplified RF signal;
a second winding providing an RF output signal based at least in part on the amplified RF signal; and
a resonator comprising a third winding at least partially coupled to the first winding and the second winding, wherein a resonance frequency of the resonator is tuned to provide a second frequency-dependent profile for the transformer, and wherein the second frequency-dependent profile compensates for the first frequency-dependent profile.
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