Homodyne dual six-port network analyzer and associated calibration technique for millimeter wave measurements

This paper presents a homodyne six-port network analyzer operating around 60 GHz. The power detection is realized by using Schottky zero-bias diodes. The conception of the system is driven by means of low-cost and simplicity of realization considerations. A circulator-less topology implemented on an alumina microstrip technology and a detector linearization method are proposed to measure simultaneously the reflection and transmission coefficients of a device under test (D.U.T.). The system, initially conceived and optimized at 60 GHz, takes advantage of the development of a calibration model to support measurements in the 59-62 GHz band