Open AccessConceptual design of a beam steering lens through transformation electromagnetics
Author(s) -
Jianjia Yi,
Shah Nawaz Burokur,
André de Lustrac
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.012942
Subject(s) - transformation optics , metamaterial , optics , luneburg lens , electromagnetics , lens (geology) , physics , beam steering , beam (structure) , transformation (genetics) , antenna (radio) , computer science , refractive index , telecommunications , biochemistry , chemistry , engineering physics , gene
In this paper, based on transformation electromagnetics, the design procedure of a lens antenna, which steers the radiated beam of a patch array, is presented. Laplace's equation is adopted to construct the mapping between the virtual space and the physical space. The two dimensional (2D) design method can be extended to a potential three-dimensional (3D) realization, and with a proper parameter simplification, the lens can be further realized by common metamaterials or isotropic graded refractive index (GRIN) materials. Full wave simulations are performed to validate the proposed concept. It is observed that by placing the lens on a feeding source, we are able to steer the radiation emitted by the latter source.