An approximate generalization of Schelkunoff´s horn-gain formulas

Author

Selvan, Krishnasamy T.

Author_Institution

SAMEER-Centre for Electromagn., Madras, India

Volume

47

Issue

6

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

1001

Lastpage

1004

Abstract

Schelkunoff´s (1943) classical horn-gain formulas are applicable only to pyramidal and H-plane sectoral horns, which satisfy the Kirchhoff approximation. In this paper, a general gain formula is proposed that would be applicable also to E-plane sectoral horns and open-ended rectangular waveguides. The new formula is obtained by incorporating the “edge effect” into the classical formulas. Whereas for large apertures the new solution gives the same values as the conventional formulas, for small apertures it gives significant improvement over them and compares well with other improved gain formulas

Keywords

antenna theory; horn antennas; rectangular waveguides; 3.0 to 8.5 GHz; E-plane sectoral horns; H-plane sectoral horns; Kirchhoff approximation; Schelkunoff´s horn-gain formulas; approximate generalization; edge effect; general gain formula; open-ended rectangular waveguides; pyramidal horns; Aperture antennas; Electromagnetic waveguides; Gain measurement; Geometry; Horn antennas; Integral equations; Kirchhoff´s Law; Planar waveguides; Rectangular waveguides; Tellurium;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.777123

Filename

777123