DEVELOPMENT OF TRANSMITTER TUBE FOR TROPOSCATTER APPLICATIONS.
Abstract
The program objectives are to determine the design criteria for a highly efficient (50% overall efficiency including focusing and cooling power), 10 kW CW traveling-wave amplifier at C-band and to construct, test and deliver two (2) advanced exploratory development models of the device. This amplifier is to have 11 dB of gain to boost the output power of existing 1 kW troposcatter systems using readily available power generators. Techniques to improve the efficiency by reducing the power necessary to cool the device are in integral part of the program. The tube employs a coupled cavity interaction circuit with a solenoid focused, semi-confined flow electron beam. Improvement in basic tube efficiency is accomplished by voltage jump and phase velocity tapering combined with collector depression. Cooling efficiency is improved by utilizing vapor phase (nucleate boiling) cooling, which eliminates the need for a coolant pump. During the report period cold test work and fabrication of the first advanced exploratory model tube were completed with the exception of attaching the waveguides. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1969
- Accession Number
- AD0689492
Entities
People
- A. L. Rousseau
Organizations
- Hughes Aircraft Company