A convenient calibration procedure of four-port reflectometers: application on six-port reflectometer and heterodyne network analyzer

This paper presents a millimeter-wave six-port reflectometer in the W-frequency band (75-110 GHz). A convenient calibration technique requiring two standards is described. The measurement performance of this method is compared with the results of a dual six-port network analyzer using the LRL calibration procedure. Moreover, characterization of some components by the heterodyne network analyzer in the reflection mode using this technique and other calibration methods are presented.