Microwave sweep frequency oscillator

Details Microwave sweep frequency oscillator Microwave sweep frequency oscillator

1986-05-23

1987-09-22

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331117FE, 331177V, 331178, H03B 518, H03B 2300

Patent

active

046958096

ABSTRACT:
A microwave frequency oscillator capable of being linearly swept over a wide frequency range around a central frequency comprising a field-effect transistor with a high gain, the output of which is fed back to the input from a coupler consisting of two relatively narrow striplines located close together. A wobbulator circuit is fitted in shunt to the feedback network comprises two voltage variable capacitors in series between three line components designed to optimize the frequency modulation linearity in relation to the voltage variable capacitance diode control voltage. The oscillator is useful in equipment requiring extreme linearity such as radio-altimeter sources.

REFERENCES:
patent: 4189690 (1980-02-01), Bock et al.
patent: 4310809 (1982-01-01), Buck et al.

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