A resonant circular polarization selective structure of closely spaced Morin helices

Author

Ericsson, Andreas ; Sjoberg, Daniel

Author_Institution

Dept. Electr. & Inf. Technol., Lund Univ., Lund, Sweden

fYear

2014

fDate

16-23 Aug. 2014

Firstpage

1

Lastpage

4

Abstract

A circular polarization selective structure (CPSS) reflects one handedness of circular polarization and transmits the other. We present a resonant CPSS structure consisting of closely spaced Morin helices. Simulation results demonstrate that the design can operate over ±20° angle of incidence variation and has a bandwidth of about 10% at normal incidence. A suggested design case is presented, where the CPSS is implemented in a shared aperture circular polarization offset reflector antenna for satellite communication in the K_u-band uplink of Australia at 17.3 GHz <; f <; 18.1 GHz.

Keywords

helical antennas; microwave antennas; offset reflector antennas; polarisation; satellite antennas; Australia; circular polarization selective structure; closely spaced Morin helices; frequency 17.3 GHz to 18.1 GHz; offset reflector antenna; resonant CPSS structure; satellite communication; shared aperture circular polarization; Aperture antennas; Insertion loss; Materials; Polarization; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI

Conference_Location

Beijing

Type

conf

DOI

10.1109/URSIGASS.2014.6929104

Filename

6929104