MICROWAVE AMPLITUDE LIMITERS FOR WIDEBAND LOW-DISTORTION APPLICATIONS.
Technical rept. Jan 66-Jun 67,
STANFORD UNIV CALIF STANFORD ELECTRONICS LABS
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The study presents the results of an investigation of microwave amplitude limiters. The purpose of the study was to seek out and compare the characteristics of microwave devices used as limiters, and to determine which of those considered are capable of low-phase-distortion, broadband, wide-dynamic-range envelope limiting. A resume of performance characteristics is given for several types of microwave limiters. Theoretical analyses are presented for a single-ended mixer-limiter and for five component arrangements of balanced mixer-limiters. Results of laboratory measurements are given, principally for the microwave mixer-limiter and tunnel-diode amplifier-limiter. Measurement data include static and dynamic limiting characteristics, frequency and time-domain photographs, and static and dynamic phase-distortion measurements. A novel technique was used to measure nonlinear phase distortion AM-to-PM conversion using input amplitude variations at rates of the order of tens of megahertz. Author
- Electrical and Electronic Equipment
- Radio Communications