Accession Number : AD0282624

Title :   DEVELOPMENT OF S-BAND LOW-NOISE PERIODIC PERMANENT MAGNET TRAVELING-WAVE TUBE

Corporate Author : WATKINS-JOHNSON CO PALO ALTO CALIF

Personal Author(s) : ISRAELSEN,B.P. ; FOSTER,J.H.

Report Date : 20 JUN 1962

Pagination or Media Count : 1

Abstract : The principal problem areas in the development of an S-band, low-noise, periodic, permanent magnet traveling-wave tube are discussed. Lens effects in the gun region are reduced by the use of larger anode apertures, contributing to improved operation in the 600-gauss field of a permanent magnet. A pin-seal input match was tested which might make possible a considerable reduction in total beam length. Magnets were designed for use in a reversed-field structure. A magnetic circuit for producing a PM-PPM field is described, and test results are cited. (Author)

Descriptors :   *MICROWAVE AMPLIFIERS, *TRAVELING WAVE TUBES, ANODES, DESIGN, ELECTRON BEAMS, ELECTRON GUNS, FOCUSING, HELIXES, MAGNETIC FIELDS, MAGNETS, MEASUREMENT, NOISE (RADIO), S BAND

Distribution Statement : APPROVED FOR PUBLIC RELEASE