A novel hybrid analysis approach for subharmonic self-oscillating mixers combining volterra series and conversion matrix methods

In this paper, a novel analysis method for subharmonic self-oscillating mixers (SOMs) is presented. It suggests a hybrid approach that effectively combines a Volterra series analysis describing the oscillating steady-state condition and a conversion matrix method analysing the higher-order mixing phenomena. The proposed scheme eliminates the limitation of increasingly complex analytical description for high orders and is therefore an excellent choice for high-order subharmonic SOMs. This method is applied to a balanced subharmonic SOM circuit and yields an excellent performance prediction.