Experimental properties of threecavity tunnel diode RF oscillators
Abstract
Since superconducting resonators have become available, the best absolute frequency stability performances have been obtained by means of techniques which lock the frequency of a freerunning oscillator to a superconducting, stable cavity. An oscillator was built, operating at 430 MHz, to verify the validity of theoretical analyses by varying such critical parameters as cavity frequencies and coupling coefficients. The values of these parameters determine the behavior of the oscillator in the theoretical model. Power spectra of fractional frequency fluctuations were measured for the system operating as both a single cavity and a threecavity system by theory. These devices appear to be useful for gravity wave detection research.
 Publication:

IEEE Transactions on Microwave Theory Techniques
 Pub Date:
 November 1983
 DOI:
 10.1109/TMTT.1983.1131630
 Bibcode:
 1983ITMTT..31..905C
 Keywords:

 Cavity Resonators;
 Frequency Stability;
 Harmonic Oscillators;
 Microwave Oscillators;
 Q Factors;
 Superconductors;
 Frequency Measurement;
 Gravitational Wave Antennas;
 Performance Tests;
 Power Spectra;
 Resonant Frequencies;
 Tunnel Diodes;
 Electronics and Electrical Engineering