Oscillator utilizing inductive parameter of transistor

Details Oscillator utilizing inductive parameter of transistor Oscillator utilizing inductive parameter of transistor

1982-11-29

1985-03-26

LaRoche, Eugene R.

Oscillators

Solid state active element oscillator

Transistors

331 36C, 331117R, 333214, H03B 700

Patent

active

045076227

ABSTRACT:
An oscillator having sufficient accuracy and precision for use in aircraft microwave-landing systems is constructed without the use of an external inductor. A resonant tank circuit comprising both capacitance and inductance is attained by the use of inductance found internally in the base-emitter junction of a transistor suitably biased for operation at the frequencies of a microwave landing system. A transistor having greater-than-unity gain in the oscillation-frequency range is selected for which the angle of the reflection coefficient of the base-emitter junction is positive in the oscillation-frequency range.

REFERENCES:
patent: 2769908 (1956-11-01), Stansel
patent: 2820145 (1958-01-01), Wolfendale
patent: 3581122 (1971-05-01), Gaunt
patent: 3693105 (1972-09-01), Kleinberg

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