The THD Characteristics of the Phase detector

The paper presents an evaluation of the THD characteristics of the synmetrical and simple phase detectors, using exponential models of the detectors. By developing the output expressions into a series with Bessel-function coefficients, it is shown that, under certain conditions, the convergence is obtained. This approach results in relating the THD characteristics to other relevant electrical parameters of the circuits. Finally, a comparison is made between the simple and symmetrical detector with respect to their distortion characteristics.