TRANSVERSE-WAVE HIGH-POWER TUBE.
Quarterly rept. no. 2, 1 Jul-30 Sep 65,
ZENITH RADIO RESEARCH CORP MENLO PARK CALIF
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Research and development work is continuing on a novel type of traveling-wave power amplifier tube, employing transverse-wave interaction between the negative synchronous wave and a circuit wave on a balanced structure. Tests made on the 5-times-scale model revealed that it would be necessary to modify the circuit design in order to decrease the lower cutoff frequency. Tests on a 11 model have shown that a potentially broadband circuit which will have an insertion loss of 1.5 to 2.0 db can be fabricated. However, broadband matching to the circuit has not been achieved. A convergent gun has been received, and magnetic field studies were conducted in order to determine the proper positioning of the required magnetic shield. A second cold-test circuit was fabricated and work has begun on techniques to match to the highly dispersive circuit. Design work is continuing with the objective of demonstrating the feasibility of a l-kw cw output power at an efficiency of at least 60, using a depressed collector.
- Electrical and Electronic Equipment