ULTRAWIDE-BAND DUAL POLARIZATION THREE-DIMENSIONAL TAPERED APERTURE VIVALDI ANTENNA
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United States of America
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Jan 16, 2025
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Jul 10, 2023
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Jul 10, 2023
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Abstract
We disclose an ultrawide-band (UWB) dual polarization three-dimensional (3D) tapered aperture Vivaldi antenna. It is generally comprised of a radiator having two pairs of tapering arms, each pair corresponding to a different polarization and the tapering arms spaced thereof closest to one another at a feed point location of the antenna and taper outwardly in opposite directions, thus forming a 3D Vivaldi antenna aperture therebetween; and a dual feed balun connecting to each of the two pairs of tapering arms and providing a separate channel for each of the polarizations. Embodiments of our antenna have been designed and simulated using full-wave electromagnetics commercial software. The results for our antennas demonstrate over 20:1 operating bandwidth with good radiation characteristics and very low cross polarization.
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