Radiofrequency generation using a SNS microbridge

The feasibility of a sinusoidal oscillator is demonstrated using a SNS microbridge linked with a series RLC tank circuit, supplied by a constant DC current, and operated at the negative differential resistance range of its I-V characteristic curve. The frequency of this sinusoidal generator is equal to the resonant frequency of the tank RLC circuit. This type of generator can be operated for a wide range of frequencies, from audio frequencies up to the limit of microwaves. Other possible electronic applications based on the appropriate use of the negative resistance region of the I-V characteristic curve of the SNS microbridge are suggested.