Radio-frequency amplifier circuit based on asymmetric fishbone-shaped matching network

Abstract

A radio-frequency power amplifier circuit based on an asymmetric fishbone-shaped matching network, comprising a power amplifier transistor. An input end of the power amplifier transistor is connected to an input matching network, and an output end of the power amplifier transistor is connected to an output matching network; the input matching network and/or the output matching network is of an asymmetric fishbone-shaped structure; the asymmetric fishbone-shaped structure comprises backbone elements which are sequentially connected in series, and connecting points between adjacent backbone elements are connected to upper-row rib elements and lower-row rib elements; the upper-row rib elements and the lower-row rib elements are asymmetric; the upper-row rib elements and the lower-row rib elements are all configured as open stubs, and the upper-row rib elements or the lower-row rib elements are quarter-wavelength open stubs at a harmonic frequency; and the backbone elements and the rib elements are all matching network elements.

Dependencies are inferred from the claim text.