NDLI: Dual mode broad bandwidth high efficiency traveling-wave tube

Content Provider	IEEE Xplore Digital Library
Author	Manoly, A.E. Scherba, M.K.
Copyright Year	1975
Description	Author affiliation: Hughes Aircraft Company, Torrance, California (Manoly, A.E.)
Abstract	The development of a 10 dB pulse-up periodic permanent magnet focused high efficiency traveling-wave tube is described and experimental data is presented, Peak power levels of 4600 Watts were attained in the high power pulse mode of operator. Continuous wave power levels of 600 Watts have been demonstrated. Efficiencies up to 47 percent in the pulse mode and 38 percent in the CW mode were achieved. The objective was to obtain both a high average power capability and high efficiency at differing output power levels. A dual mode electron gun was designed and evaluated. Favorable beam characteristics were demonstrated at different perveance levels. Experimental test results shown excellent beam transmission. Shield loading techniques were used to reduce phase velocity dispersion. A helix phase velocity taper was used to improve basic interaction efficiencies. A three-stage, double depressed, collector was added to further improve overall conversion efficiency. Experimental data taken in C-band are presented. The performance of the device represents an advance in the state of the art of high efficiency, high average power, 10 dB pulse up, dual mode traveling-wave tubes.
Starting Page	142
Ending Page	144
File Size	162748
Page Count	3
File Format	PDF
DOI	10.1109/IEDM.1975.188845
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1975-12-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Electron beams Electron tubes Testing Magnetic anisotropy Perpendicular magnetic anisotropy Solenoids Magnetic shielding Voltage Aircraft
Content Type	Text
Resource Type	Article

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