Surface array waveguide mode analyzer

Author

Baird, J.M. ; Roper, D.H. ; Grow, R.W.

Author_Institution

Dept. of Electr. Eng., Utah Univ., Salt Lake City, UT, USA

fYear

1992

fDate

1-5 June 1992

Firstpage

137

Abstract

A type of mode analyzer based on an array of field probes at the surface of an overmoded circular waveguide is described. This type of device is needed in high-power microwave research where waveguide sizes typically permit dozens of modes to propagate. Initial experiments at 11 GHz using a 2-in diameter waveguide with 16 propagating modes and 20 surface probes have demonstrated the feasibility of the technique which relies on singular value decomposition algorithms for modal analysis. To make calibration feasible the field probes must respond only to the E-field or the H-field at the waveguide wall. Optimization of probe placement and anticipated errors are analyzed.<>

Keywords

calibration; circular waveguides; waveguide components; 11 GHz; 2 in; E-field response; H-field response; SHF; calibration; field probe array; modal analysis; overmoded circular waveguide; probe placement optimisation; singular value decomposition algorithms; surface probes; waveguide mode analyzer; Calibration; Laboratories; Magnetic field measurement; Microwave antenna arrays; Microwave devices; Microwave propagation; Modal analysis; Probes; Radio frequency; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1992., IEEE MTT-S International

Conference_Location

Albuquerque, NM, USA

ISSN

0149-645X

Print_ISBN

0-7803-0611-2

Type

conf

DOI

10.1109/MWSYM.1992.187927

Filename

187927