Transmitter having an improved LC oscillator

Details Transmitter having an improved LC oscillator Transmitter having an improved LC oscillator

1997-06-06

1999-11-09

Bost, Dwayne D.

Telecommunications

Transmitter

Having harmonic radiation suppression

455118, H04B 104

Patent

active

059830840

ABSTRACT:
A transmitter for use with a receiver responsive to a function request signal transmitted by said transmitter for performing a requested function. The transmitter includes a controller for providing a function command and an LC oscillator for providing the request signal at a fixed frequency in response to the command from the controller. The oscillator includes a semi-conductor having first, second, and third electrodes and a tank circuit including first, second, and third impedances. A surface acoustic wave resonator is connected from the first electrode to ground. A feedback capacitor is connected from the second electrode to said first electrode for reducing spurious frequency signals.

REFERENCES:
patent: 3882424 (1975-05-01), Debois et al.
patent: 4068173 (1978-01-01), Weise
patent: 4635296 (1987-01-01), Dinsmore
patent: 4710970 (1987-12-01), Wu et al.
patent: 4794622 (1988-12-01), Isaacman et al.
patent: 4881148 (1989-11-01), Lambropoulos et al.

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