Analysis of a hard corrugated conical horn by using the method of generalised scattering matrices

Author

Skobelev, S.P. ; Kildal, P-.S

Author_Institution

JSC, Moscow, Russia

Volume

2

fYear

2001

fDate

2001

Firstpage

696

Abstract

A conical horn with a hard wall section realised by longitudinal grooves filled with dielectric is analysed. The analysis is based on stepwise representation of the conical surfaces and on the use of the method of generalised scattering matrices. The eigenmodes for the corrugated sections are determined by the asymptotic boundary condition. It is shown that the horn can provide high aperture efficiency (above 85%) and low cross-polarisation level (below -30 dB) in some frequency band, but the horn performance strongly depends on the hard section configuration because of wave reflections between the throat and aperture

Keywords

S-matrix theory; antenna theory; aperture antennas; conical antennas; dielectric-loaded antennas; eigenvalues and eigenfunctions; horn antennas; asymptotic boundary condition; conical surfaces; corrugated conical horn; cross-polarisation level; dielectric filled grooves; eigenmodes; hard wall section; high aperture efficiency; longitudinal grooves; method of generalised scattering matrices; stepwise representation;

fLanguage

English

Publisher

iet

Conference_Titel

Antennas and Propagation, 2001. Eleventh International Conference on (IEE Conf. Publ. No. 480)

Conference_Location

Manchester

Print_ISBN

0-85296-733-0

Type

conf

DOI

10.1049/cp:20010380

Filename

928106