Design and Implementation of Micro-spectrum Analyzer Based on AD9361

Nowadays, the spectrum analyzer is large in size, which is not convenient for technicians to carry, and the price is expensive. To solve these problems, this paper designs a micro-spectrum analyzer based on FPGA+AD9361 architecture, which supports channel bandwidth from 200KHz to 56MHz,and realizes spectrum detection in the range of 70MHz~6GHz [1]. The micro-spectrum analyzer adopts the AD9361 RF integrated chip as the RF front-end processing module, adopts zero-IF design structure, and has the characteristics of small size, high performance, low power consumption, easy to use, and easy to expand functionality. It can be widely used in mobile spectrum detection and other occasions.