新式的四分频器工作于3.5 ~ 13.0 GHz频率。

The new divide-by-four device operates across 3.5 ~ 13.0 GHz frequencies.

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这种系统通过四频蜂窝信号发生器或卫星与基站通讯，可以在一些潜在的不易操作的水、油、气和电力系统上广泛部署。

It communicates with the base station via quad-band cellular signals or via satellite, allowing it to be deployed within a wide range of potentially hostile water, oil, gas and electricity networks.

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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.

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