Wide range electronic oscillator

Details Wide range electronic oscillator Wide range electronic oscillator

1985-06-07

1986-11-04

LaRoche, Eugene R.

Oscillators

Solid state active element oscillator

Transistors

331167, 331175, H03B 500

Patent

active

046212418

ABSTRACT:
An oscillator disclosed has a resonant tank circuit inclusive of an inductor (L1), a capacitor (C1), a capacitor (C3) and a capacitor (C4) connected in series with one another. A signal amplifier (A) is connected in a feedback loop which includes capacitor (C3). An additional impedance (C5) is connected between the feedback output of the amplifier and the feedback signal dividing capacitors (C3) and (C4). This additional impedance (C5) improves tuning range, tuning linearity, phase noise performance, and provides a very flat power output at ultra high frequencies.

REFERENCES:
patent: 1624537 (1927-04-01), Colpitts
patent: 2225897 (1940-12-01), Bell
patent: 2756334 (1956-07-01), Blum
patent: 3675109 (1972-07-01), Skoog
patent: 3813615 (1974-05-01), Okazaki
patent: 4267522 (1981-05-01), Periot
patent: 4360790 (1982-11-01), Heise
patent: 4536724 (1985-10-01), Hasegawa et al.

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