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Experimental demonstration of superdirective dielectric antenna

Krasnok, AE; Filinov, Dmitry; Simovski, Constantin; Belov, Pavel A; Kivshar, Yuri


We propose and demonstrate experimentally a simple approach for achieving superdirectivity of emitted radiation for electrically small antennas based on a spherical dielectric resonator with a notch excited by a dipole source. Superdirectivity is achieved without using complex antenna arrays and for a wide range of frequencies. We also demonstrate the steering effect for a subwavelength displacement of the source. Finally, unlike previously known superdirective antennas, our design has...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.4869817
Access Rights: Open Access


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