A Method for Analysis of Current-Driven Passive Mixer with Considering Arbitrary Input Impedance and Time Constant of $RC$-load

Abstract

The paper presents a generalized method for calculation of current-driven passive mixer with considering arbitrary input impedance and time constant of $RC$-load. The results are valid for any input impedance, time constant of $RC$-load and intermediate frequency. A circuit for compensating harmonics at the output of the arms is proposed. This circuit can significantly suppress the level of harmonics and increase the transfer impedance of the mixer. The mixer circuit is simulated on the Micro-Cap and the result is compared with the calculation. The frequency dependences of the transfer impedance are considered.