Accession Number:

AD0815540

Title:

DESIGN OF AN OCTAVE BANDWIDTH HIGH POWER, S-BAND INJECTED-BEAM CROSSED-FIELD AMPLIFIER.

Descriptive Note:

Final rept. 7 Jul 62-1 Jul 66,

Corporate Author:

LITTON SYSTEMS INC SAN CARLOS CA ELECTRON TUBE DIV

Report Date:

1967-04-01

Pagination or Media Count:

49.0

Abstract:

Research and development were conducted to achieve a design of an octave bandwidth injected beam crossed field amplifier. This tube is rated at 2 kw minimum power output at 40 efficiency, with the capability of being pulsed to an objective level of 10 kw. The crossed field amplifier is an inherently high efficiency device whose bandwidth is primarily dependent upon the dispersive nature of the slow-wave structure. It has been shown in an existing P-Band crossed field amplifier that the helix has the capability of meeting the high power octave bandwidth requirement. Other existing crossed field amplifiers have exhibited moderate pulse capabilities, and gun modifications would be necessary to maintain good optics under the pulse conditions. The overall tube design is heavily dependent upon the type of delay line structure utilized to fullfill the program requirements. Many slow-wave structures were investigated and examined for bandwidth, interaction impedance, thermal capability and ease of mechanical construction. This resulted in the choice of the modified helix mounted on a cooled dielectric rod. The mechanical design was then developed, resulting in a small lightweight tube suitable for operation in an airborne environment, and with the potential for being economically produced at a high yield. Author

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE