The cross antenna: a new low-profile circularly polarized radiator

Author

Roederer, Antoine G.

Author_Institution

Eur. Space Res. & Technol. Centre, Noordwijk, Netherlands

Volume

38

Issue

5

fYear

1990

fDate

5/1/1990 12:00:00 AM

Firstpage

704

Lastpage

710

Abstract

A low-profile circularly polarized medium gain antenna is presented. This traveling-wave antenna consists of a conducting wire or strip placed above a ground plane and following the contour of a cross with four or more branches and a diameter of around 1.5 wavelengths. The length of the wire is typically 5-20 wavelengths over one or more turns. The antenna is fed from a coaxial input and terminated in a load. Multiple arm configurations are also introduced. The antenna and its principles of operation are described. Computer modeling of the antenna is followed by the optimization of a few configurations for which design data and typical performances are given. Experimental results on both one- and two-turn versions agree well with predictions and confirm the practical value of this novel antenna configuration

Keywords

antenna radiation patterns; electromagnetic wave polarisation; microstrip antennas; microwave antennas; conducting wire; cross antenna; ground plane; low-profile circularly polarized radiator; medium gain antenna; microstrip antenna; multiple arm configurations; radiation patterns; traveling-wave antenna; Arm; Dipole antennas; Feeds; Loaded antennas; Microstrip; Polarization; Reflector antennas; Satellite antennas; Space technology; Wire;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.53498

Filename

53498