On the experimental calculation of the conversionmatrix for sub-harmonic mixer

This paper introduces experimental observations and theoretical considerations on a newly introduced technique allowing to measure the admittance conversion matrix of microwave device, by large-signal vectorial measurements. In particular, it discusses the capability and the limitation of the method to evaluate the conversion matrix of an anti-parallel Schottky diode-pair, starting from the measurement of the single diode. A theoretical treatment and several simulated and experimental results give an insight into the approach.