Title :
A high-efficiency single-layer dual-band circularly polarized reflectarray antenna
Author :
Ruyuan Deng ; Shenheng Xu ; Fan Yang
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
A single-layer dual-band circularly polarized reflectarray antenna is presented for satellite communications. This reflectarray antenna element is composed of a concentric split-ring combination with a modified Malta Cross, where variable rotation angle and variable element size techniques are utilized to compensate the phase delay, respectively. A reflectarray with a circular aperture of 420 mm in diameter is designed and analyzed. The numerical results demonstrate that this reflectarray can achieve aperture efficiency of 66% at 20 GHz and 55% at 30 GHz, respectively.
Keywords :
antenna radiation patterns; multifrequency antennas; reflectarray antennas; aperture efficiency; circular aperture; concentric split-ring combination; high-efficiency single-layer dual-band circularly polarized reflectarray antenna; modified Malta Cross; satellite communications; variable element size techniques; variable rotation angle technique; Abstracts; Indexes; Reflector antennas; Wireless communication; Zirconium; Circular polarization; dual-band; reflectarray; satellite communications;
Conference_Titel :
Antennas and Propagation (ISAP), 2014 International Symposium on
Conference_Location :
Kaohsiung
DOI :
10.1109/ISANP.2014.7026713
