Title :
Maximizing the Frequency of Negative-Resistance Oscillation
Author :
Cox, Duncan B., Jr. ; Reich, Herbert J.
fDate :
3/1/1967 12:00:00 AM
Abstract :
High-frequency oscillation is often desired from a circuit consisting of a one-port negative-resistance element, e.g., a tunnel diode and a passive linear load. The designer must then choose a negative-resistance element capable of producing oscillation at the desired frequency. In this paper the question of frequency "capability" is investigated on the basis of the usual circuit model for a tunnel diode. Theoretical expressions for the maximum frequencies of quasi-harmonic oscillation with resistive loads and parallel-RC loads are derived. The method of analysis, utilizing impedance loci in the complex plane, leads logically to the discovery of loads that are superior to the parallel-RC load. Experimental data support the theoretical predictions.
Keywords :
Impedance loci; Negative-resistance oscillation; Nonlinear oscillations; Nyquist diagrams; Oscillations, negative-resistance; Tunnel diodes; Circuits; Diodes; Frequency; H infinity control; Impedance; Joining processes; Limit-cycles; Oscillators; Predictive models; Voltage;
Journal_Title :
Circuit Theory, IEEE Transactions on
DOI :
10.1109/TCT.1967.1082647