Title :
Circular polarized reflectarray antenna
Author :
Ahmadi, Farzaneh ; Forooraghi, Keyvan ; Atlasbaf, Zahra
Author_Institution :
Fac. of Electr. & Comput. Eng., Tarbiat Modares Univ., Tehran, Iran
Abstract :
In this paper, aperture coupled dielectric resonator antenna loaded with rotated strip, is used as a CP element for reflectarray antenna. Phase variations are obtained by a symmetric change in the length of the stub. The effect of the various parameters of the structure on the slope of the phase curve is studied. Simulations are carried out with Ansoft HFSS software. Linear phase curves with more than 400 degrees phase shifts are achieved in 21 percent frequency bandwidth. Finally axial ratio performance of an array with 256 elements is calculated using the finite integration technique (FIT) in CST MWS software.
Keywords :
dielectric resonator antennas; electromagnetic wave polarisation; integration; linear antenna arrays; reflectarray antennas; Ansoft HFSS software; CP element; CST MWS software; FIT; aperture coupled dielectric resonator antenna; axial ratio performance; circular polarized reflectarray antenna; finite integration technique; frequency bandwidth; linear phase curves slope; phase variation; rotated strip antenna; Arrays; Microwave antennas; Resonant frequency; Software; Strips; Transmitting antennas; axial ratio bandwidth; dielectric resonator antenna; reflectarray antenna;
Conference_Titel :
Electrical Engineering (ICEE), 2012 20th Iranian Conference on
Conference_Location :
Tehran
Print_ISBN :
978-1-4673-1149-6
DOI :
10.1109/IranianCEE.2012.6292525
