Temperature compensated surface acoustic wave oscillator

Details Temperature compensated surface acoustic wave oscillator Temperature compensated surface acoustic wave oscillator

1976-01-05

1977-03-08

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Significant distributed parameter resonator

331176, 333 72, 334 5, H03B 504, H03B 532, H03J 304

Patent

active

040115267

ABSTRACT:
Disclosed apparatus compensates for the parabolic temperature induced frequency drift characteristic of a surface acoustic wave tuned oscillator. The apparatus includes a pair of varactor diodes and a temperature sensitive voltage supply. The diodes are series connected and coupled in circuit with the oscillator to affect the frequency thereof. The voltage supply connects to the common connection of the diodes, for producing control voltages thereat.
Each varactor diode is chosen to have a .delta. > 1; and the control voltage varies linearly with temperature. This results in a varactor diode capacitance versus temperature characteristic which is a continuous, true parabolic function providing precise compensation for the thermal drift of oscillator frequency.

REFERENCES:
patent: 3176244 (1965-03-01), Newell et al.
patent: 3483485 (1969-12-01), Scherrer
patent: 3821665 (1974-06-01), Irwin et al.
patent: 3855548 (1974-12-01), Nandi et al.
patent: 3868595 (1975-02-01), Capps, Jr. et al.

Affiliated with

Also associated with

Rating

Temperature compensated surface acoustic wave oscillator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature compensated surface acoustic wave oscillator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature compensated surface acoustic wave oscillator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1409116