Multitone Troposcatter Tube (G-Band).
Abstract
The objective of the study was to optimize the design of G-band TWTs capable of amplifying between 4 and 16 equal-amplitude signals with a carrier-to-IM distortion power ratio of at least 20 dB, and demonstrating an overall efficiency of 25 percent minimum. The approach was to operate the tubes backed off from saturation to fulfill the distortion specification, and incorporate a four-stage depressed collector to achieve the efficiency. Detailed designs satisfying the requirements were established by computer analysis. The best designs had uniform RF circuits, which were operated closer to synchronism than in standard TWTs. The overall efficiency was 27 percent minimum in the band 4.4 - 5.O GHz for both a PPM-focused 1 kW tube and a solenoid-focused 10 kW tube (including solenoid power).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1975
- Accession Number
- ADA017955
Entities
People
- I. Tammaru
Organizations
- Hughes Aircraft Company