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Volume 15
Issue 9
10.3390/ma15093320
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Article

Manufacturing of a Magnetic Composite Flexible Filament and Optimization of a 3D Printed Wideband Electromagnetic Multilayer Absorber in X-Ku Frequency Bands

by
Christophe Vong
1,2,3,
Alexis Chevalier
1,
Azar Maalouf
1,*,
Julien Ville
2,
Jean-François Rosnarho
3 and
Vincent Laur
1
1
University Brest, Lab-STICC, UMR 6285, CNRS, 29200 Brest, France
2
University Brest, IRDL, UMR 6027, CNRS, 29200 Brest, France
3
SIEPEL Cegelec Defense, 56470 La Trinité-sur-Mer, France
*
Author to whom correspondence should be addressed.
Materials 2022, 15(9), 3320; https://doi.org/10.3390/ma15093320
Submission received: 14 March 2022 / Revised: 14 April 2022 / Accepted: 22 April 2022 / Published: 5 May 2022
(This article belongs to the Topic Material and Process Innovations for 3D Printing Applications)
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Abstract

With the multiplication of electronic devices in our daily life, there is a need for tailored wideband electromagnetic (EM) absorbers that could be conformed on any type of surface-like antennas for interference attenuation or military vehicles for stealth applications. In this study, a wideband flexible flat electromagnetic absorber compatible with additive manufacturing has been studied in the X-Ku frequency bands. A multilayer structure has been optimized using a genetic algorithm (GA), adapting the restrictions of additive manufacturing and exploiting the EM properties of loaded and non-loaded filaments, of which the elaboration is described. After optimization, a bi-material multilayer absorber with a thickness of 4.1 mm has been designed to provide a reflectivity below −12 dB between 8 and 18 GHz. Finally, the designed multilayer structure was 3D-printed and measured in an anechoic chamber, achieving −11.8 dB between 7 and 18 GHz. Thus, the development of dedicated materials has demonstrated the strong potential of additive technologies for the manufacturing of thin wideband flexible EM absorbers.
Keywords: electromagnetic multilayer absorber; genetic algorithm; 3D printing; filament making; EM characterization electromagnetic multilayer absorber; genetic algorithm; 3D printing; filament making; EM characterization

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MDPI and ACS Style

Vong, C.; Chevalier, A.; Maalouf, A.; Ville, J.; Rosnarho, J.-F.; Laur, V. Manufacturing of a Magnetic Composite Flexible Filament and Optimization of a 3D Printed Wideband Electromagnetic Multilayer Absorber in X-Ku Frequency Bands. Materials 2022, 15, 3320. https://doi.org/10.3390/ma15093320

AMA Style

Vong C, Chevalier A, Maalouf A, Ville J, Rosnarho J-F, Laur V. Manufacturing of a Magnetic Composite Flexible Filament and Optimization of a 3D Printed Wideband Electromagnetic Multilayer Absorber in X-Ku Frequency Bands. Materials. 2022; 15(9):3320. https://doi.org/10.3390/ma15093320

Chicago/Turabian Style

Vong, Christophe, Alexis Chevalier, Azar Maalouf, Julien Ville, Jean-François Rosnarho, and Vincent Laur. 2022. "Manufacturing of a Magnetic Composite Flexible Filament and Optimization of a 3D Printed Wideband Electromagnetic Multilayer Absorber in X-Ku Frequency Bands" Materials 15, no. 9: 3320. https://doi.org/10.3390/ma15093320

APA Style

Vong, C., Chevalier, A., Maalouf, A., Ville, J., Rosnarho, J.-F., & Laur, V. (2022). Manufacturing of a Magnetic Composite Flexible Filament and Optimization of a 3D Printed Wideband Electromagnetic Multilayer Absorber in X-Ku Frequency Bands. Materials, 15(9), 3320. https://doi.org/10.3390/ma15093320

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