volume | PIER Journals

Abstract

This paper presents a novel compact printed antenna exploitable for Dedicated Short-Range Communication at 5.8 GHz. The design of the proposed device is based on the concentric arrangement of two contemporary fed patches operating with different modes. The resulting antenna exhibits a fan-beam pattern, with a wide lobe in one plane and narrow lobe in the plane perpendicular to the former, while retaining exceptionally small dimensions. The actual width of the beam makes the antenna suitable to cover a single road lane, as prescribed by the Intelligent Transportation System framework requirements. Furthermore, it natively operates in Circular Polarization, as prescribed by the ETSI EN 302 663 normative. Experimental validations demonstrate that the proposed antenna presents a Left-Hand gain of 4.1 dB at center frequency, with HPBW_x and HPBW_y equal to 160˚ and 45˚, respectively, showing good agreement with the simulations. This measured performance confirms that the device is adequate to cover a single road-lane, according to the European framework for Dedicated Short-Range Communication for traffic monitoring.

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Dr. Stefano Maddio