NASA NTRS · 19890000002
Microwave Comb Generator
Abstract
Stable reference tones aid testing and calibration of microwave receivers. Signal generator puts out stable tones in frequency range of 2 to 10 GHz at all multiples of reference input frequency, at any frequency up to 1 MHz. Called "comb generator" because spectral plot resembles comb. DC reverse-bias current switched on and off at 1 MHz to generate sharp pulses in step-recovery diode. Microwave components mounted on back of special connector containing built-in attenuator. Used in testing microwave and spread-spectrum wide-band receivers.
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Sigman, E. H.. 1989-01-01. Microwave Comb Generator. https://ntrs.nasa.gov/citations/19890000002
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