SHORT INTERACTION CROSSED-FIELD AMPLIFIER.
Quarterly rept. no. 3, 1 Dec 66-28 Feb 67,
GENERAL ELECTRIC CO SCHENECTADY N Y
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The purpose of this study is to develop a novel, injected-beam non-re-entrant crossed-field amplifier employing a cycloiding electron beam. Fast bunching of the cycloiding beam occurs since the unfavorably phased electrons are collected on the sole as interaction with the RF field begins. The activity of the third quarter centered around constructing and testing a demountable amplifier, including the measurement of the cold loss of the interdigital circuit and the input-output match. Various incidental difficulties prevented operation of the amplifier. A cold loss of about 6.5 DB was measured for a line with molybdenum vanes and copper back wall. The RF window has a VSWR or 1.2 and the coaxial-to-interdigital line transition has a VSWR or 1.6. It was concluded that all copper slow-wave structures with greater back-wall spacing would be required in order to minimize the loss. Author
- Electrical and Electronic Equipment