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Progress In Electromagnetics Research C
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ANISOTROPIC ZERO INDEX MATERIAL: A METHOD OF REDUCING THE FOOTPRINT OF VIVALDI ANTENNAS IN THE UHF RANGE

By A.-S. Popescu, I. Bendoym, T. Rexhepi, and D. Crouse

Full Article PDF (645 KB)

Abstract:
In this work, an anisotropic zero index material is designed for use in Vivaldi antennas. The metasurface structures are placed within the aperture of a Vivaldi antenna to improve the directivity and gain of the emitted radiation. The range of operation is in the ultrahigh frequency (UHF) range, between 300 MHz and 3 GHz. Two approaches are presented: a type of resonant metallic metamaterial that belongs to the larger class of anisotropic zero index metamaterials and a non-resonant material. A technique for lowering the dimensions of the resonant metamaterial unit cell is presented and applied. The work presented consists of simulation results obtained with HFSS modelling software from ANSYS.

Citation:
A.-S. Popescu, I. Bendoym, T. Rexhepi, and D. Crouse, "Anisotropic Zero Index Material: a Method of Reducing the Footprint of Vivaldi Antennas in the UHF Range," Progress In Electromagnetics Research C, Vol. 65, 33-43, 2016.
doi:10.2528/PIERC16031703

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