On the calculation of harmonic oscillators utilizing negative resistance.

When harmonic oscillators utilizing elements with N-type and S-type voltage/current characteristics (elements with negative conductance or negative resistance) are calculated, usually only the non-linearity of the voltage/current characteristic is taken into account. However, the impedance of these elements is of a complex character, and the non-linearity of the reactive component influences the different modes of operation. This influence may be considerable and in some cases even dominating. If, however, it is taken into account, then the calculation of such systems becomes very difficult. The method used in this paper (Samoylo 1964, 1968) enables these problems to be treated correctly and at the same time considerably simplifies the mathematical calculations.
The results given in the paper may be used when harmonic oscillators utilizing tunnel diodes, Gunn diodes, avalanche diodes, avalanche transistors, unijunction transistors, p-n-p-n-type elements, etc., are studied.
The calculations are made considering the non-linearity of the active and reactive components of the impedance of these elements. The experimental results agree well with the theoretical results. [ABSTRACT FROM AUTHOR]