First and second oscillator circuits selectively coupled through

Details First and second oscillator circuits selectively coupled through First and second oscillator circuits selectively coupled through

1999-05-04

1999-12-07

Grimm, Siegfried H.

Oscillators

Plural oscillators

Selectively connected to common output or oscillator...

331 74, 331117R, 331179, 331177V, H03B 512, H03B 518

Patent

active

059990619

ABSTRACT:
An oscillator having two oscillation circuits with widely different frequencies with a common passive switched output circuit. Each oscillator circuit includes a transmission line inductive impedance between the oscillator output and ground. The inductive impedances are selected to be open at the operating frequency of the associated oscillator circuit and a short or a low impedance at the frequency of the other oscillator circuit. Each inductive impedance forms a portion of an impedance matching pad for the other oscillator circuit.

REFERENCES:
patent: 5852384 (1998-12-01), Sakakura et al.
patent: 5856763 (1999-01-01), Reeser et al.

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