Gain enhancement of a pyramidal horn using E- and H-plane metal baffles

Author

Koerner, Matthew A. ; Rogers, Robert L.

Author_Institution

Appl. Res. Lab., Texas Univ., Austin, TX, USA

Volume

48

Issue

4

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

529

Lastpage

538

Abstract

A technique for enhancing the gain of a wide-flare angle pyramidal horn is described. The gain of the antenna is increased by placing simple metal strips or baffles inside the horn near its throat. Two baffles, an E- and an H-plane baffle, are described and analyzed. The baffles are first analyzed through two-dimensional (2-D) numerical calculations and then through measurements in an experimental X-band horn. Each baffle enhances the antenna´s gain in the respective plane. When the baffles are implemented together the gain enhancement is additive in decibels. The numerical calculations and measurements show that baffles can he used to significantly reduce the size of pyramidal horn antennas

Keywords

antenna accessories; antenna radiation patterns; horn antennas; E-plane metal baffles; H-plane metal baffles; experimental X-band horn; gain enhancement; metal strips; numerical calculations; pyramidal horn; size; wide-flare angle pyramidal horn; Antenna measurements; Antennas and propagation; Costs; Horn antennas; Lenses; Phased arrays; Reflector antennas; Silver; Size measurement; Strips;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.843666

Filename

843666