Application and Simulation of Fourier Analysis in Communication Circuit

Abstract

This article mainly studies the application of Fourier analysis theory in wireless communication circuits. Firstly, the relevant basic theories of Fourier analysis are introduced, including the decomposition of periodic signal, the modulation characteristic of Fourier transform, and the system function; then the relevant applications of Fourier theory in communication circuits are introduced, such as high-frequency resonant power amplifier, amplitude modulation, demodulation and mixing, low-pass filter. Finally, the application of Fourier theory in communication circuits is simulated and analyzed through Multisim circuit simulation software.