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

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-sha...

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Main Authors: Marco Salucci, Lorenzo Poli, Paolo Rocca, Claudio Massagrande, Pietro Rosatti, Mohammad Abdul Hannan, Mirko Facchinelli, Andrea Massa
Format: Article
Language:English
Published: IEEE 2024-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10376146/
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author Marco Salucci
Lorenzo Poli
Paolo Rocca
Claudio Massagrande
Pietro Rosatti
Mohammad Abdul Hannan
Mirko Facchinelli
Andrea Massa
author_facet Marco Salucci
Lorenzo Poli
Paolo Rocca
Claudio Massagrande
Pietro Rosatti
Mohammad Abdul Hannan
Mirko Facchinelli
Andrea Massa
author_sort Marco Salucci
collection DOAJ
description 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 <inline-formula> <tex-math notation="LaTeX">$f_{\min }=76$ </tex-math></inline-formula> [GHz] <inline-formula> <tex-math notation="LaTeX">$\le f \le f_{\max }=78$ </tex-math></inline-formula> [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.
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spelling doaj.art-275fc2158b2d49ba8bbab7fe3aea0fae2024-01-09T00:04:59ZengIEEEIEEE Access2169-35362024-01-01122086209910.1109/ACCESS.2023.334824010376146Spline-Shaped Microstrip Edge-Fed Antenna for 77 GHz Automotive Radar SystemsMarco Salucci0https://orcid.org/0000-0002-6948-8636Lorenzo Poli1https://orcid.org/0000-0002-8816-1970Paolo Rocca2https://orcid.org/0000-0003-4522-6903Claudio Massagrande3https://orcid.org/0000-0002-9952-0967Pietro Rosatti4https://orcid.org/0000-0002-7696-8347Mohammad Abdul Hannan5https://orcid.org/0000-0002-4042-1585Mirko Facchinelli6Andrea Massa7https://orcid.org/0000-0002-8429-8937DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA&#x0040;UniTN-University of Trento), Trento, ItalyDICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA&#x0040;UniTN-University of Trento), Trento, ItalyDICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA&#x0040;UniTN-University of Trento), Trento, ItalyHuawei Technologies Italia, Palazzo Verrocchio, Segrate, ItalyDICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA&#x0040;UniTN-University of Trento), Trento, ItalyDICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA&#x0040;UniTN-University of Trento), Trento, ItalyDICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA&#x0040;UniTN-University of Trento), Trento, ItalyDICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA Research Center (ELEDIA&#x0040;UniTN-University of Trento), Trento, ItalyAn 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 <inline-formula> <tex-math notation="LaTeX">$f_{\min }=76$ </tex-math></inline-formula> [GHz] <inline-formula> <tex-math notation="LaTeX">$\le f \le f_{\max }=78$ </tex-math></inline-formula> [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.https://ieeexplore.ieee.org/document/10376146/Automotive radarmm-waves77 [GHz] bandwidthantenna designsplinesystem-by-design (SbD)
spellingShingle Marco Salucci
Lorenzo Poli
Paolo Rocca
Claudio Massagrande
Pietro Rosatti
Mohammad Abdul Hannan
Mirko Facchinelli
Andrea Massa
Spline-Shaped Microstrip Edge-Fed Antenna for 77 GHz Automotive Radar Systems
IEEE Access
Automotive radar
mm-waves
77 [GHz] bandwidth
antenna design
spline
system-by-design (SbD)
title Spline-Shaped Microstrip Edge-Fed Antenna for 77 GHz Automotive Radar Systems
title_full Spline-Shaped Microstrip Edge-Fed Antenna for 77 GHz Automotive Radar Systems
title_fullStr Spline-Shaped Microstrip Edge-Fed Antenna for 77 GHz Automotive Radar Systems
title_full_unstemmed Spline-Shaped Microstrip Edge-Fed Antenna for 77 GHz Automotive Radar Systems
title_short Spline-Shaped Microstrip Edge-Fed Antenna for 77 GHz Automotive Radar Systems
title_sort spline shaped microstrip edge fed antenna for 77 ghz automotive radar systems
topic Automotive radar
mm-waves
77 [GHz] bandwidth
antenna design
spline
system-by-design (SbD)
url https://ieeexplore.ieee.org/document/10376146/
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