DocumentCode :
546091
Title :
Single layer anisotropic impedance surface for linear to circular polarization conversion in Reflect mode
Author :
Doumanis, Efstratios ; Goussetis, George ; Gómez-Tornero, Jose-Luis ; Cahill, Robert ; Fusco, Vincent
Author_Institution :
Queen´´s Univ. of Belfast, Belfast, UK
fYear :
2011
fDate :
11-15 April 2011
Firstpage :
1666
Lastpage :
1670
Abstract :
Anisotropic impedance surfaces are proposed as low-profile and broadband linear to circular polarization reflectors. By virtue of anisotropy it is possible to independently control the reflection characteristics of two orthogonal linearly polarized incident plane waves and therefore achieve polarization conversion. By means of an example involving a dipole array, the operation principle is demonstrated. A prototype is designed and its performance characteristics are evaluated. The 3 dB relative axial ratio bandwidth exceeds 60%, while low loss and better than previously reported angular stability are also demonstrated. Numerical and experimental results on a fabricated prototype are presented to validate the design and the performance.
Keywords :
dipole antenna arrays; polarisation; reflector antennas; circular polarization conversion; dipole array; orthogonal linearly polarized incident plane waves; reflect mode; single layer anisotropic impedance surface; Antennas; Arrays; Impedance; Polarization; Reflection; Surface impedance; Surface waves;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4577-0250-1
Type :
conf
Filename :
5781842
Link To Document :
بازگشت