Investigations of the electromagnetic properties of finite length X-band slow-wave structures

Author

Main, W. ; Carmel, Y. ; Ogura, Kanayo ; Weaver, James ; Tate, Jitendra ; Watanabe, Shigetaka ; Nusinovitch, G. ; Destler, W.W. ; Granatstein, V.L.

Author_Institution

Lab. for Plasma Res., Maryland Univ., College Park, MD, USA

fYear

1993

fDate

7-9 June 1993

Firstpage

102

Abstract

Summary form only given. Cold tests have been performed on a slow-wave structure made from a cylindrical waveguide with sinusoidally varying radius. To study the dispersion relation, a cavity was formed by shorting a section of the structure between metal plates placed at planes of mirror symmetry. A simple axial wire antenna was used to launch azimuthally symmetric TM (transverse magnetic) modes. The end reflection was measured on the 8-period beam test structure to include the effect of the output taper. Since the input side was cutoff to all TM modes, one only needed to measure reflection for the output side of the structure. This reflection was found by measuring the diffractive quality factor of the structure.

Keywords

slow wave structures; axial wire antenna; azimuthally symmetric TM modes; cold tests; cylindrical waveguide; diffractive quality factor; dispersion relation; electromagnetic properties; end reflection; finite length X-band slow-wave structures; reflection; sinusoidally varying radius; Antenna measurements; Diffraction; Dispersion; Electromagnetic waveguides; Mirrors; Optical reflection; Performance evaluation; Q factor; Testing; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1993. IEEE Conference Record - Abstracts., 1993 IEEE International Conference on

Conference_Location

Vancouver, BC, Canada

ISSN

0730-9244

Print_ISBN

0-7803-1360-7

Type

conf

DOI

10.1109/PLASMA.1993.593100

Filename

593100