Dielectric Resonator Oscillators with Digital Temperature Compensation.
Abstract
A digital compensation circuit for improving the temperature stability of dielectric resonator oscillators is disclosed. A temperature sensor indicates a measure of ambient temperature which is correlated with an amount of phase shift necessary to compensate for frequency drift in a dielectric resonator oscillator. The correlation is made using a correction table or correction function which is determined empirically in a calibration process. The necessary phase shift is then supplied via a voltage controlled phase shifter. This phase shifter is part of the RF oscillation loop which also includes an amplifier, directional coupler and dielectric resonator filter (including microstrip).
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 27, 1985
- Accession Number
- ADD011715
Entities
People
- A. J. Slobodnik
Organizations
- United States Department of the Air Force