Temperature compensated oscillator

Details Temperature compensated oscillator Temperature compensated oscillator

2006-05-16

2006-05-16

Mis, David (Department: 2817)

Oscillators

Frequency stabilization

Temperature or current responsive means in circuit

C331S037000, C331S041000, C331S046000, C331S096000

Reexamination Certificate

active

07046099

ABSTRACT:
An oscillator having a desired output frequency, comprising a cavity resonator102loaded with an anisotropic dielectric material and an oscillator circuit100including the cavity resonator102as a frequency determining element, the oscillator circuit100arranged to operate the cavity resonator102at a first frequency in a first mode and at a second frequency in a second mode, the first mode and the second mode each being influenced to a different extent by the thermal coefficient of permittivity of at least one crystal axis of the dielectric material, the oscillator circuit arranged to produce the desired operating frequency from the first frequency and the second frequency. The first frequency and the second frequency differ by an amount corresponding to the desired output frequency.

REFERENCES:
patent: 5652556 (1997-07-01), Flory et al.
patent: WO 03/038943 (2003-05-01), None

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