Experimental demonstration of superdirective dielectric antenna
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]
|Collections||ANU Research Publications|
|Source:||Applied Physics Letters|
|01_Krasnok_Experimental_demonstration_of_2014.pdf||1.57 MB||Adobe PDF|
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