A new small antenna formed by a periodic assembly of two-tone dielectrics (Barium-titanate and Alumina) emulating an anisotropic medium is presented. Directive radiation characteristics are achieved when operated close to the band edge frequencies of a class of anisotropic photonic crystals supporting degenerate band edge (DBE) modes. Unique aspects of the antenna design are its smaller size (0.79 lambda0times 0.80 lambda0times 0.28 lambda0) and nearly optimum aperture efficiency. The subject 3-D assembly, fed by a slot on a ground plane, achieved a directivity of 10.17 dBi. This communication presents the design of the 3-D assembly using full-wave simulations and provides experimental verification of the overall antenna performance.
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Yarga et al. (2009) studied this question.
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