US Patent No. 10,193,509


Patent No. 10,193,509
Issue Date January 29, 2019
Title Power Amplifier Harmonic Matching Network
Inventorship Martin Fritz, Bavaria (DE)
Assignee Avago Technologies International Sales Pte. Limited, Singapore (SG)

Claim of US Patent No. 10,193,509

1. An output network connected to an output of a nonlinear unmatched power amplifier that provides an amplified voltage signal at a fundamental frequency, the output network comprising:a harmonic matching network comprising a plurality of acoustic resonators configured to match a plurality of harmonic frequencies of the amplified voltage signal to one of substantially zero impedance, appearing as a short at the output of the nonlinear unmatched power amplifier, or substantially infinite impedance, appearing as an open at the output of the nonlinear unmatched power amplifier, resulting in zero voltage or zero current at higher harmonic frequencies, respectively, to avoid power distribution at the higher harmonic frequencies,
wherein each higher harmonic frequency of the plurality of matched harmonic frequencies is higher than a first harmonic frequency, which is the fundamental frequency.