An 18-40 GHz coaxial six-port reflectometer using four diode detectors calibrated without a power ratio standard is presented. The hardware configuration of the six-port junction, the linearization of the diode detectors, and the calibration of the six-port reflectometer are discussed. Absolute power measurements or a high-quality variable attenuator is not required during the linearization of the diode detectors. A comparison between experimental results obtained by the six-port reflectometer and a Hewlett Packard HP 8510C Automatic Network Analyzer on a 3-dB attenuator terminated by a short circuit is presented.
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机译:提出了一种18-40 GHz同轴六端口反射仪,它使用四个未经功率比标准校准的二极管检测器。讨论了六端口结的硬件配置,二极管检测器的线性化以及六端口反射仪的校准。在二极管检测器线性化期间,不需要绝对功率测量或高质量可变衰减器。给出了六端口反射仪和Hewlett Packard HP 8510C自动网络分析仪在以短路终止的3 dB衰减器上获得的实验结果之间的比较。
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