General balance power analysis of HFHPTA with (M,N)-composite signals

Abstract

In this paper general balance power analysis of HF high-power tuned amplifiers (HFHPTA) with composite drive and output signal obtained by injection of an N-harmonic signal into an M-harmonic carrier signal, is presented. M and N are positive integers where M<N and M, generally speaking, may not divide N. The valve model used in HF amplifier is assumed to be linear. The central idea is in finding signal parameters of an (M,N)-composite signal possessing flattened extremums. Such composite signals serve as starting point for general balance power analysis of linear HFHPTA. It is shown that the usage of (M,N)- composite signals with flattened extremums in general balance power analysis of HFHPTA either provides an almost optimal operating conditions with less than 10% error (for M<N<5) or the optimal operating conditions in all other cases. © 1998 1EEE.