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A novel ultra wideband antenna is here proposed for Vehicle to Infrastructure (V2I) communication systems. Two Vivaldi antennas are arranged in a back-to-back configuration (array of two Vivaldi antennas) to radiate both in front and rear car driving direction. By feeding the antennas with out-of-phase currents, the field radiation in the transversal direction is attenuated, so limiting the multipath...
A back-to-back Vivaldi Antenna is here proposed for a novel Vehicle to Infrastructure (V2I) communication system in the X-band (8.5–11GHz). The antenna has to be compact and low-profile in order to be installed on the car's roof. To cover the entire operating band, an ultra wideband (UWB) Vivaldi antenna has been chosen. Since the antenna has to radiate both in front and rear car driving direction,...
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