用第一种方法求出了混频器的输入阻抗，用第二种方法讨论了收敛参量对改进收敛性的影响。

We computed the input impedance of mixer with the first method, and we also discussed the effect of the convergent parameter on improving the convergence with the second method.

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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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