Summary

International Symposium on Antennas and Propagation

2014

Session Number:FR1B

Session:

Number:FR1B_04

A High-Efficiency Single-Layer Dual-Band Circularly Polarized Reflectarray Antenna

Ruyuan Deng,  Shenheng Xu,  Fan Yang,  

pp.-

Publication Date:2014/12/2

Online ISSN:2188-5079

DOI:10.34385/proc.36.FR1B_04

PDF download (213.2KB)

Summary:
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.