Technical Digest., International Electron Devices Meeting
DOI: 10.1109/iedm.1988.32836
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Reducing the gain and phase variation in high power MMW TWTs

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Cited by 3 publications
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“…Finally, the velocity taper was relatively mild to minimize circuit mismatches. Compared to a typical value of 5-10-dB peak-to-peak small-signal gain ripple for high-efficiency ferruled circuits, the low-distortion TWT's achieved an order of magnitude improvement with values less than 1 .O dB [9].…”
Section: Introductionmentioning
confidence: 80%
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“…Finally, the velocity taper was relatively mild to minimize circuit mismatches. Compared to a typical value of 5-10-dB peak-to-peak small-signal gain ripple for high-efficiency ferruled circuits, the low-distortion TWT's achieved an order of magnitude improvement with values less than 1 .O dB [9].…”
Section: Introductionmentioning
confidence: 80%
“…This TWT was the fourth and final ferruleless coupled-cavity TWT built by Hughes Aircraft Company for the NASA Lewis Research Center research and development contract NAS3-24899, "Study of Methods for the Reduction of Distortion in High Power TWT's." The first three of these periodic permanent magnet (PPM) focused, 29-30-GHz TWT's were built with mild doublestep velocity tapers and were used to study the effects of minor circuit design variations on small-signal distortion [9]. The ferruleless circuits of these TWT's consist of alternating webs and spacers (Fig.…”
Section: Introductionmentioning
confidence: 99%