Application of rectangular and elliptical dielcore feed horns to elliptical reflector antennas

Author

Lier, Erik ; Rahmat-Samii, Yahya ; Rengarajan, Sembiam R.

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

39

Issue

11

fYear

1991

fDate

11/1/1991 12:00:00 AM

Firstpage

1592

Lastpage

1597

Abstract

The pattern characteristics of elliptical reflector antennas are investigated when they are fed by rectangular and elliptical horns partially filled with a dielectric. The bandwidth characteristics of these dielcore horns are superior to those of their corrugated horn counterparts. Representative reflector patterns are computed to properly demonstrate the utility of these feeds for reflector antennas with elliptical apertures. This reflector antenna exhibits high efficiency and low cross polarization, and may be suitable for radar and satellite antenna applications. The antenna configuration may become useful in relatively small antennas where more than 10% cross-polar bandwidth is required. The efficient dielcore horns may also be used as feeds for elliptical nonshaped dual-reflector antennas

Keywords

antenna feeders; antenna radiation patterns; reflector antennas; dielcore feed horns; elliptical horns; elliptical reflector antennas; high efficiency; low cross polarization; radar applications; radiation patterns; rectangular horns; satellite antenna applications; Antenna feeds; Aperture antennas; Bandwidth; Dielectrics; Horn antennas; Polarization; Radar antennas; Radar applications; Reflector antennas; Satellite antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.102774

Filename

102774