Novel ultra-wideband bow-tie antenna with high front-to-back ratio and directivity

We present a novel directional ultra-wideband antenna based on the bow-tie geometry. The proposed design, unlike the conventional bow-tie radiator, has an inherently different radiation mechanism, which relies on magnetic currents excited in properly designed slots. This in turn allows to maintain good antenna performance even when a planar reflector is placed below the antenna that gives rise to high front-to-back ratio and directivity over a band extending from 4.8 to 6.1 GHz. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1016–1020, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25108

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