Accession Number:

AD0276643

Title:

AN INVESTIGATION OF THE INTERACTION BETWEEN A PERIODIC-ELECTRON BEAM AND AN UNLOADED WAVEGUIDE MODE

Descriptive Note:

Technical rept.

Corporate Author:

UTAH UNIV SALT LAKE CITY MICROWAVE DEVICE AND PHYSICAL ELECTRONICS LAB

Report Date:

1962-05-04

Pagination or Media Count:

48.0

Abstract:

An investigation was made of the interaction between a periodic electron beam and an unloaded waveguide mode. It is known that energy can be transferred to waveguide fields from an electron beam which possesses considerable transverse velocity components. One embodiment of this principle consists of a spiraling beam in a TE10 rectangular waveguide. For net energy exchange, the fields must produce electron bunching. A small signal axial bunching theory is carried out and a description of the bunching is presented. It is found that radial deflections and energy exchange accompany this bunching process. Based on the bunching theory developed, a large signal interaction theory was carried out on the digital computer. Results show that good efficiencies can be obtained at modest gains, and the beam must be injected such that the appropriate beam harmonic travels slightly faster than the synchronous velocity. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE