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

doi:10.1109/ACCESS.2023.3348240

IEEE Access (Jan 2024)

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

Affiliations

Marco Salucci: ORCiD; DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA@UniTN-University of Trento), Trento, Italy
Lorenzo Poli: ORCiD; DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA@UniTN-University of Trento), Trento, Italy
Paolo Rocca: ORCiD; DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA@UniTN-University of Trento), Trento, Italy
Claudio Massagrande: ORCiD; Huawei Technologies Italia, Palazzo Verrocchio, Segrate, Italy
Pietro Rosatti: ORCiD; DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA@UniTN-University of Trento), Trento, Italy
Mohammad Abdul Hannan: ORCiD; DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA@UniTN-University of Trento), Trento, Italy
Mirko Facchinelli: DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA@UniTN-University of Trento), Trento, Italy
Andrea Massa: ORCiD; DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA@UniTN-University of Trento), Trento, Italy

DOI: https://doi.org/10.1109/ACCESS.2023.3348240
Journal volume & issue: Vol. 12
pp. 2086 – 2099

Abstract

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An innovative millimeter-wave (mm-wave) microstrip edge-fed antenna (EFA) for 77 GHz automotive radars is proposed. The radiator is designed under the main requirements of having (i) an horizontally-polarized pattern and (ii) a single-layer layout. Its contour is modeled with a sinusoidal spline-shaped (SS) profile characterized by a reduced number of geometrical descriptors, but still able to guarantee, thanks to a continuously non-uniform width, 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 $f_{\min }=76$ [GHz] $\le f \le f_{\max }=78$ [GHz]. The experimental assessment, carried out with a Compact Antenna Test Range (CATR) system on a printed circuit board (PCB)-manufactured prototype, assesses the reliability of the outcomes from the full-wave (FW) simulations as well as the suitability of the synthesized SS-EFA for automotive radars.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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