Continuous inverse class F power amplifier optimally using fragment discrete structure matching network optimization design

Abstract

The invention discloses a continuous inverse class F power amplifier using fragment discrete structure matching network optimization design. The continuous inverse class F power amplifier comprises aninput matching network and an output matching network. The output matching network comprises a fragment discrete structure matching network and a regular structure fundamental wave matching network.The fragment discrete structure matching network is used for realizing a transmission zero point of a harmonic frequency band, can be discretized into rectangular sub-grids, 0 or 1 is used for describing each sub-grid, 1 represents that a grid region is made of a metal material, and 0 represents that metal is not attached to the grid region. The regular structure fundamental wave matching networkis used for realizing fundamental wave impedance matching in a wide frequency band. According to the continuous inverse class F power amplifier, the fragment discrete structure harmonic matching network of the power amplifier is optimized by using the multi-objective optimization algorithm, so that the problems of poor out-of-band rejection and non-ideal filtering characteristic of a traditional Chebyshev low-pass matching network are solved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a continuous inverse class F power amplifier designed optimally by a fragmented discrete structure matching network. Background technique [0002] With the rapid development of wireless communication, the amount of information transmitted by mobile communication is increasing, the data rate is gradually increasing, and the performance requirements for power amplifiers are also increasing. Traditional CW power amplifiers include J class, CW class F, CW inverse F class and other improved harmonic control classes. Due to their advantages of wideband and high efficiency, CW power amplifiers have attracted extensive attention from industry and academia. [0003] On the one hand, the harmonic load required by the continuous type amplifier is not a fixed open circuit or short circuit, but a series of impedances distributed continuously along the edges of the Smith chart. Therefor...

AI Technical Summary

Problems solved by technology

[0005] In summary, it is found through research that, on the one hand, traditional continuous power amplifiers only use regular structures to design matching networks, while the strong flexibility and large degrees of freedom of fragmented discrete structures are far beyond the reach of regular structures.

On the other hand, conventional power amplifier design usually adopts the design mode of "theoretical design-parameter adjustment", which is not flexible enough in terms of power amplifier output matching network structure and parameter adjustment, and has certain limitations.

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