混频技术是微波系统的关键技术之一，但受制于电子器件的限制，其关键性能指标难以获得突破。提出了一种新颖的基于双臂电光外调制器实现微波混频的方法。对混频技术、电光调制和光倍频等关键组成部分进行了设计，最后利用Matlab对系统进行仿真，并搭建简易的实验系统对关键参数进行了验证。

Frequency-converter is one of the key technology of the microwave system, however, the key performance indicator of the technology is hard to break through, which is limited by the electron devices. A novel method of microwave mixing based on dual-parallel electro-optic external modulators is proposed in this paper. In this paper, the key components such as mixing technology, electro-optic modulation and optical frequency tupling are designed. Finally, a simple experimental system is built to verify the key parameters, and the system is simulated by using Matlab.