Experimental Validation of 3D Printed GRIN Lens for mmWave Automotive Radar

Coen Van De Ven; Abolfazl Haddadi; Andrés Alayón Glazunov

doi:10.23919/EuCAP63536.2025.10999950

Experimental Validation of 3D Printed GRIN Lens for mmWave Automotive Radar

Coen Van De Ven^*
, Abolfazl Haddadi^*
, Andrés Alayón Glazunov

^*Corresponding author for this work

Radio Systems

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

This paper presents the experimental validation of a 3D-printed Gradient Index (GRIN) lens designed for automotive radar applications. Building on prior work that introduced the core lensing elements, this study utilizes a more cost-effective extrusion 3D printing method than the expensive stereolithography process. By employing a smaller unit cell design, simulation time was significantly reduced, enabling a global optimization routine. As a result, the half-power beam width (HPBW) was successfully increased from 50 deg to 139 deg by integrating the GRIN lens, demonstrating its potential to enhance radar performance.

Original language	English
Title of host publication	EuCAP 2025 - 19th European Conference on Antennas and Propagation
Publisher	IEEE
ISBN (Electronic)	9788831299107
DOIs	https://doi.org/10.23919/EuCAP63536.2025.10999950
Publication status	Published - 21 May 2025
Event	19th European Conference on Antennas and Propagation, EuCAP 2025 - Stockholm, Sweden Duration: 30 Mar 2025 → 4 Apr 2025 Conference number: 19

Conference

Conference	19th European Conference on Antennas and Propagation, EuCAP 2025
Abbreviated title	EuCAP 2025
Country/Territory	Sweden
City	Stockholm
Period	30/03/25 → 4/04/25

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Keywords

2025 OA procedure
Automotive Radar
lenses
mmWave
Antennas

Access to Document

10.23919/EuCAP63536.2025.10999950

Experimental_Validation_of_3D_Printed_GRIN_Lens_for_mmWave_Automotive_RadarFinal published version, 6.99 MBLicence: Taverne

Cite this

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title = "Experimental Validation of 3D Printed GRIN Lens for mmWave Automotive Radar",

abstract = "This paper presents the experimental validation of a 3D-printed Gradient Index (GRIN) lens designed for automotive radar applications. Building on prior work that introduced the core lensing elements, this study utilizes a more cost-effective extrusion 3D printing method than the expensive stereolithography process. By employing a smaller unit cell design, simulation time was significantly reduced, enabling a global optimization routine. As a result, the half-power beam width (HPBW) was successfully increased from 50 deg to 139 deg by integrating the GRIN lens, demonstrating its potential to enhance radar performance.",

keywords = "2025 OA procedure, Automotive Radar, lenses, mmWave, Antennas",

author = "\{Van De Ven\}, Coen and Abolfazl Haddadi and Glazunov, \{Andr{\'e}s Alay{\'o}n\}",

note = "Publisher Copyright: {\textcopyright} 2025 European Association on Antennas and Propagation.; 19th European Conference on Antennas and Propagation, EuCAP 2025, EuCAP 2025 ; Conference date: 30-03-2025 Through 04-04-2025",

year = "2025",

month = may,

day = "21",

doi = "10.23919/EuCAP63536.2025.10999950",

language = "English",

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T1 - Experimental Validation of 3D Printed GRIN Lens for mmWave Automotive Radar

AU - Van De Ven, Coen

AU - Haddadi, Abolfazl

AU - Glazunov, Andrés Alayón

N1 - Conference code: 19

PY - 2025/5/21

Y1 - 2025/5/21

N2 - This paper presents the experimental validation of a 3D-printed Gradient Index (GRIN) lens designed for automotive radar applications. Building on prior work that introduced the core lensing elements, this study utilizes a more cost-effective extrusion 3D printing method than the expensive stereolithography process. By employing a smaller unit cell design, simulation time was significantly reduced, enabling a global optimization routine. As a result, the half-power beam width (HPBW) was successfully increased from 50 deg to 139 deg by integrating the GRIN lens, demonstrating its potential to enhance radar performance.

AB - This paper presents the experimental validation of a 3D-printed Gradient Index (GRIN) lens designed for automotive radar applications. Building on prior work that introduced the core lensing elements, this study utilizes a more cost-effective extrusion 3D printing method than the expensive stereolithography process. By employing a smaller unit cell design, simulation time was significantly reduced, enabling a global optimization routine. As a result, the half-power beam width (HPBW) was successfully increased from 50 deg to 139 deg by integrating the GRIN lens, demonstrating its potential to enhance radar performance.

KW - 2025 OA procedure

KW - Automotive Radar

KW - lenses

KW - mmWave

KW - Antennas

UR - https://www.scopus.com/pages/publications/105007507811

U2 - 10.23919/EuCAP63536.2025.10999950

DO - 10.23919/EuCAP63536.2025.10999950

M3 - Conference contribution

AN - SCOPUS:105007507811

BT - EuCAP 2025 - 19th European Conference on Antennas and Propagation

PB - IEEE

T2 - 19th European Conference on Antennas and Propagation, EuCAP 2025

Y2 - 30 March 2025 through 4 April 2025

ER -

Experimental Validation of 3D Printed GRIN Lens for mmWave Automotive Radar

Abstract

Conference

UN SDGs

Keywords

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