A 10 GHz Oscillator Based on the Principle of Negative Resistance

Abstract

A Ka-band oscillator based on the principle of negative resistance is analyzed and modelled. A novel stable frequency source based on balanced parallel-coupled dielectric resonator feedback system is devised to achieve considerable spectral purity and good power output at the target ka-band resonance. Dual negative conductance feedbacks are configured to model a compensation technique to establish excellent geometric parameters with respect to the resonant frequency affinity based on the configured compensation technique. The derived equivalent circuit is modelled using advanced design system (ADS)software and subsequently realized. A reasonable level of agreement is observed between the simulated and measured values with measured phase noise of −81.03 dBc/Hz at 100 kHz offset and resonance ($T$ E01)of 10 GHz.