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arXiv · 2208.00841

Spline-Shaped Microstrip Edge-Fed Antenna for 77 GHz Automotive Radar Systems

Marco Salucci·Lorenzo Poli·Paolo Rocca·Claudio Massagrande·Pietro Rosatti·Mohammad Abdul Hannan·Mirko Facchinelli·Andrea Massa
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Abstract

An innovative millimeter-wave (mm-wave) microstrip edge-fed antenna (EFA) for 77 GHz automotive radars is proposed. The radiator contour is modeled with a sinusoidal spline-shaped (SS) profile characterized by a reduced number of geometrical descriptors, but still able to guarantee a high flexibility in the modeling for fulfilling challenging user-defined requirements. The SS-EFA descriptors are effectively and efficiently optimized with a customized implementation of the System-by-Design (SbD) paradigm. The synthesized EFA layout, integrated within a linear arrangement of identical replicas to account for the integration into the real radar system, exhibits suitable impedance matching, isolation, polarization purity, and stability of the beam shaping/pointing within the target band [76:78][GHz]. The experimental assessment, carried out with a Compact Antenna Test Range (CATR) system on a printed circuit board (PCB)-manufactured prototype, assess the reliability of the outcomes from the full-wave (FW) simulations as well as the suitability of the synthesized SS-EFA for automotive radars.

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Marco Salucci, Lorenzo Poli, Paolo Rocca, Claudio Massagrande, Pietro Rosatti, Mohammad Abdul Hannan, Mirko Facchinelli, Andrea Massa. 2022-07-26. Spline-Shaped Microstrip Edge-Fed Antenna for 77 GHz Automotive Radar Systems. https://doi.org/10.1109/access.2023.3348240

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