Accession Number : AD0650472

Title :   ANALYSIS OF THE EFFECT OF FERRITE ON THE INTERACTION FIELDS IN A TRAVELING-WAVE TUBE.

Descriptive Note : Technical rept.,

Corporate Author : ARMY ELECTRONICS COMMAND FORT MONMOUTH N J

Personal Author(s) : Gottfried,Arthur H.

Report Date : JAN 1967

Pagination or Media Count : 37

Abstract : An analysis was made of the effect on the interaction fields outside the helix of a traveling-wave tube when a ferrite cylinder, d-c magnetized in the circumferential direction, is placed inside the helix. It is shown that the main effect is the introduction of a slowing factor for the phase velocity of the slow waves. This phase velocity is independent of the strength of the d-c magnetic field, but is proportional to (1 + epsilon/epsilon sub o) to the 1/2 power, where epsilon/epsilon sub o is the relative dielectric constant of the ferrite. It is also shown that the backward-wave modes are cut off for certain values of d-c magnetic field. (Author)

Descriptors :   (*TRAVELING WAVE TUBES, FERROMAGNETIC MATERIALS), FERRITES, HELIXES, INTERACTIONS, ELECTRON BEAMS, MAGNETIC FIELDS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE