同时，由于采用了数字正交调制，从而有效地提高了镜频抑制。

At the same time, we refrain mirror frequency effectively with the method of digital quadrature modulation (DQM).

youdao

第三章介绍了微波混频器及镜频抑制混频器的工作原理，讨论了设计微波镜频抑制混频器中应该注意的一些问题。

In chapter three, after presenting the working principle of mixer and image-reject mixer, some problems which should be paid attention to during the mixer design are discussed.

youdao

本文首先介绍了一种毫米波段具有镜频抑制功能的四次谐波混频器的设计与实现。

At first, the design and implementation of MMW hybrid integrated sub-harmonic image rejection mixer is presented in this paper.

youdao