Microwave spectrum analyzer with a synthesized local oscillator

Details Microwave spectrum analyzer with a synthesized local oscillator Microwave spectrum analyzer with a synthesized local oscillator

1981-05-18

1983-11-15

Tokar, Michael J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 84, G01R 2314

Patent

active

044158548

ABSTRACT:
A microwave spectrum analyzer comprising a first mixer which provides beats between the output of an YIG oscillator and the spectrum to be analyzed. A second mixer carries out a fixed transposition of said beats. The said YIG oscillator is locked to harmonics of the frequency of an auxiliary oscillator controlled by a phase-frequency comparator. The latter is adapted to receive on the one hand the frequency, divided by N of a synthesizer, and on the other hand, the beats between the frequency of said auxiliary oscillator and that of a crystal oscillator.

REFERENCES:
patent: 3978403 (1976-08-01), Mansfield

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