With the use of double balance mixer structure, we achieved wideband impedance match at RF port and selected appropriate switch signal at LO port.
采用双平衡混频结构进行设计，在射频端口实现宽带阻抗匹配，在本振端口选取合适的开关信号。
The LO phase noise, LO-RF port isolation of the mixer in the front-end and their effect on the detectability of the radiometer were analyzed in this paper.
分析了前端部件中本振源相位噪声和混频器本振射频端口隔离度对系统探测性能的影响，指出在距离较近时影响明显。
Two RF output port, offsetting or allotting output for option.
双口输出，可采用分支或分配输出选件。
When measuring the RF&MW devices, applying error correction to the vector network analyzer, and executing the full two-port calibration, the systematic errors can be removed completely.
用矢量网络分析仪进行射频和微波元器件的测量时，配合网络分析仪的误差修正技术，进行全二端口校准，能彻底地消除系统误差。
When measuring the RF&MW devices, applying error correction to the vector network analyzer, and executing the full two-port calibration, the systematic errors can be removed completely.
用矢量网络分析仪进行射频和微波元器件的测量时，配合网络分析仪的误差修正技术，进行全二端口校准，能彻底地消除系统误差。
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