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Polarization correction of luneburg lens with chiral medium
Author(s) -
Viitanen Ari J.,
Lindell Ismo V.,
Sihvola An H.
Publication year - 1990
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650030207
Subject(s) - luneburg lens , optics , polarization (electrochemistry) , chirality (physics) , optical rotation , lens (geology) , physics , circular polarization , refractive index , chiral symmetry , chemistry , microstrip , nambu–jona lasinio model , quantum mechanics , quark
The geometrical optics method for the wave propagation in inhomogeneous chiral media, introduced recently, is here applied to the Luneburg lens antenna. For sufficiently small values of the chirality parameter, the geometrical optics rays can be calculated as for the achiral medium and the main effect of the chirality is rotation of polarization along the ray. This effect can be exploited to correct the polarization in the aperture of a lens antenna. In this paper the cross polarization of the Luneburg lens is eliminated through use of an inhomogeneous chirality distribution.