该混频器主要由波导-微带过渡，输入、输出滤波器以及匹配网络和反向并联混频二极管对组成。

The mixer mainly consists of a waveguide-to-microstrip transition, input and output filters, matching networks and an antiparallel diode pair.

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该混频器主要由波导一微带过渡，输入、输出滤波器以及匹配网络和三组反向并联混频二极管对组成。

The mixer mainly consists of a waveguide-to-microstrip transition, input and output filters, matching networks and an antiparallel Sckottky-barrier diode pair.

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该解调器由数字混频器、数字频率合成器(DDFS)和低通滤波器构成。

This initial demodulator incorporates a digital mixer, DDFS and low-pass filter.

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