Reflection oscillators employing series resonant crystals'

Details Reflection oscillators employing series resonant crystals' Reflection oscillators employing series resonant crystals'

1988-12-30

1989-10-10

LaRoche, Eugene R.

Oscillators

Solid state active element oscillator

Transistors

331117FE, H03B 512

Patent

active

048734985

ABSTRACT:
A reflection oscillator is provided which employs an active device operated in its roll-off region and two resonant circuits. For an oscillator employing a bipolar transistor, the emitter is connected to a series resonant capacitor-crystal network and the base is connected to an L-C tank circuit with the transistor being operated in the roll-off region of its gain versus frequency curve. This will provide a very high frequency of operation with a relatively inexpensive, low frequency, active device. These oscillators are easily tuned, stable, and require little d.c. power.

REFERENCES:
patent: 4553110 (1985-11-01), Kleinberg

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