APPLIED RESEARCH ON EFFICIENCY IMPROVEMENT IN O-TYPE TRAVELING-WAVE TUBES.
Abstract
Methods to improve the synchronism of the large signal beam modulation with its circuit wave, of travelingwave amplifiers were investigated. One approach of interest here is to reduce the phase velocity of the circuit near the output end in one or two steps. (One and two step velocity taper). The other scheme considered is to increase the beam velocity by applying a higher voltage to the output section of the circuit (voltage jump). Both methods were analyzed with a one dimensional large signal digital computer program for a specific set of tube parameters. A substantial improvement of the efficiency (up to 62% and 66%) is indicated, when the design parameters are optimized. The demountable station was modified to facilitate a quick experimental evaluation of these schemes. The performance of the apparatus was evaluated. The test circuit properties are being determined. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1964
- Accession Number
- AD0608930
Entities
People
- O. Sauseng
Organizations
- Hughes Aircraft Company