Abstract:A method for designing a broadband high-efficiency power amplifier (PA) based on a novel loop-shaped filter matching structure is proposed in this paper. By combining a power amplifier matching circuit and a loop-shaped filter structure, a broadband high-efficiency PA based on a new harmonic matching structure is realized. The novel loop-shaped filter can control the second and third harmonics in a wide frequency range and has a specific control effect on higher-order harmonics, which can further expand the ba… Show more
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