Higher-order mode coupling between H-plane T-junctions and cross-guide slot couplers in feed networks of waveguide slot arrays

Author

Joubert, J. ; Coetzee, J.C.

Author_Institution

Dept. of Electr., Electron. & Comput. Eng., Pretoria Univ., South Africa

fYear

2000

fDate

2000

Firstpage

408

Lastpage

411

Abstract

The effect of higher-order mode coupling between an H-plane T-junction and closely spaced cross-guide slot couplers, as used in the feed networks of slotted waveguide arrays has been investigated. The effect has been found to be significant and a procedure is proposed to compensate for this effect as part of the design procedure of slotted waveguide arrays. The effect can be adjusted for by changing the lengths and angles of the coupling slots, using a pre-determined database of S-parameters computed with a full-wave analysis procedure

Keywords

S-parameters; antenna feeds; power dividers; slot antenna arrays; waveguide junctions; H-plane T-junctions; S-parameters; T-junction power divider; compensation; coupling slot angles; coupling slot lengths; cross-guide slot couplers; feed networks; full-wave analysis procedure; higher-order mode coupling; slotted waveguide arrays; waveguide slot arrays; Africa; Computer networks; Couplers; Electronic mail; Feeds; Intelligent networks; Performance analysis; Scattering parameters; Waveguide components; Waveguide junctions;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2000 Asia-Pacific

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-6435-X

Type

conf

DOI

10.1109/APMC.2000.925834

Filename

925834