Accession Number:

AD0463007

Title:

DESIGN OF A NONLINEAR-REACTANCE SUBHARMONIC GENERATOR.

Descriptive Note:

Final rept.,

Corporate Author:

STANFORD UNIV CA STANFORD ELECTRONICS LABS

Personal Author(s):

Report Date:

1964-12-01

Pagination or Media Count:

85.0

Abstract:

A nonlinear-reactance subharmonic generator is proposed which utilizes a nonlinear capacitor in a simple circuit configuration. Selection of suitably simple nonlinearities for the nonlinear capacitor is shown to allow analytic treatment of the subharmonic generator from a steady-state point of view. In addition, the steady-state results are extended to provide insight in the important areas of stability of subharmonic responses and possible dependence of buildup of the subharmonic responses on initial conditions. The analytic results, together with a numericalintegration type of digital-computer simulation, yield several useful predictions of important properties of the subharmonic generator. These predictions are verified, and other properties are studied by construction of an experimental subharmonic generator using a junction diode as the nonlinear capacitor. The circuit is shown to be useful as a subharmonic generator for all subharmonics through at least the 115th, when properly tuned. A lumped model of the Linvill type is used for the diode in the digital-computer simulation the close correspondence of computer and experimental results provides verification of the mechanisms involved. A crude design procedure is demonstrated which allows rapid attainment of a given subharmonic response with a few simple calculations and experimental adjustments. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE