Oscillator circuit employing inductive circuit formed of field e

Details Oscillator circuit employing inductive circuit formed of field e Oscillator circuit employing inductive circuit formed of field e

1992-03-11

1992-12-29

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331117FE, 333214, H03B 524, H03H 1110

Patent

active

051755130

ABSTRACT:
A cascode amplifier having a 180.degree. phase characteristic is connected with in-phase feedback circuits having a 0.degree. phase characteristics. When viewed from an output side of the cascode amplifier, these circuits operate as inductive circuits having negative resistance. Thus, connecting a capacitor to the output of the cascode amplifier causes formation of a parallel resonance circuit, so that an oscillating operation is carried out. Since an inductor, i.e., inductive circuit can be structured without use of a transmission line, an occupied region necessary for formation of a microwave oscillation circuit is reduced.

REFERENCES:
patent: 3255364 (1966-06-01), Warner, Jr.
patent: 3715693 (1973-02-01), Fletcher et al.
patent: 4812785 (1989-03-01), Pauker
patent: 4873497 (1989-10-01), Kielmeyer, Jr.

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