DEVELOPMENT OF TRANSMITTER TUBE FOR TROPOSCATTER APPLICATIONS.
Triannual rept. no. 1, 1 Jul-31 Oct 68,
HUGHES AIRCRAFT CO TORRANCE CALIF ELECTRON DYNAMICS DIV
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The program objective is to determine the design criteria for a high 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 device. This amplifier is to have 11 dB of gain to boost the output of existing 1 kW troposcatter systems using power generators readily available. Techniques to improve the efficiency by reducing the power necessary to cool the device are an 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. Author
- Electrical and Electronic Equipment
- Radio Communications