Oscillator Design on Any Harmonic-Balance Simulator

摘要

This article describes the design of negative-resistance oscillators by means of a numerical device-line measurement. This approach allows oscillators to be designed on any harmonic balance simulator without the need to break the feedback path, use special elements, or other such artificial techniques. In designing RF and microwave oscillators, we often treat the transistor as a one-port, negative-resistance element, and we select feedback and tuning elements that satisfy Kurokawa's oscillation conditions at the single port.