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In this paper, the design of metamaterial-enhanced antenna arrays is carried out exploiting a quasi-conformal coordinate transformation approach. More specifically, the transformation of a physically linear arrangement into a virtual curved array with a larger size is considered by means of an isotropic inhomogeneous lens comprising non-magnetic materials. The effectiveness of the considered approach for the enhancement of the scanning and beamwidth performance of linear arrangements is preliminarily assessed by means of numerical simulations.