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Multi-band circular polarizer using planar spiral metamaterial structure |
Optics Express, Vol. 20, Issue 14, pp. 16050-16058 (2012)
http://dx.doi.org/10.1364/OE.20.016050
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Abstract
A multi-band circular polarizer is proposed by using multi layered planar spiral metamaterial structure in analogy with classic spiral antenna. At three distinct resonant frequencies, the incident linearly polarized wave with electric field paralleling to one specific direction is transformed into left/right-handed circularly polarized waves through electric field coupling. Measured and simulated results show that right-handed circularly polarized wave is produced at 13.33 GHz and 16.75 GHz while left-handed circularly polarized wave is obtained at 15.56 GHz. The surface current distributions are studied to investigate the transformation behavior for both circular polarizations. The relationship between the resonant positions and the structure parameters is discussed as well.
© 2012 OSA
OCIS Codes
(260.5430) Physical optics : Polarization
(260.5740) Physical optics : Resonance
(160.3918) Materials : Metamaterials
ToC Category:
Metamaterials
History
Original Manuscript: April 16, 2012
Manuscript Accepted: June 19, 2012
Published: June 29, 2012
Citation
Xiaoliang Ma, Cheng Huang, Mingbo Pu, Chenggang Hu, Qin Feng, and Xiangang Luo, "Multi-band circular polarizer using planar spiral metamaterial structure," Opt. Express 20, 16050-16058 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-14-16050
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