Title :
The cross antenna: a new low-profile circularly polarized radiator
Author :
Roederer, Antoine G.
Author_Institution :
Eur. Space Res. & Technol. Centre, Noordwijk, Netherlands
fDate :
5/1/1990 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
