Accession Number:

ADD013657

Title:

Dielectric Resonator Oscillators with Digital Temperature Compensation.

Descriptive Note:

Patent, Filed 27 Mar 85, patented 8 Dec 87,

Corporate Author:

DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Report Date:

1987-12-08

Pagination or Media Count:

10.0

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.

Subject Categories:

  • Electrical and Electronic Equipment
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE