Evaluation of electromagnetic characteristics of 3D-printed radar absorbing structures based on three-dimensional period pattern surface

Hyun, Jong-Min; Lee, Jung-Ryul

doi:10.1016/j.measurement.2024.114213

Measurement

2024

DOI: 10.1016/j.measurement.2024.114213

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Evaluation of electromagnetic characteristics of 3D-printed radar absorbing structures based on three-dimensional period pattern surface

Jong-Min Hyun,

Jung-Ryul Lee

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2024

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3D-printed broadband electromagnetic wave-absorbing basalt/CF/PLA composites with a high current path for lightning strike protection

Noh,

Hong,

Hoang

et al. 2024

Journal of Composite Materials

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In this study, we used the three-dimensional (3D) printing method to design and fabricate a radar-absorbing structure (RAS) to protect against damage caused by lightning strikes. A carbon black-dispersed 3D filament was used as reinforcement in the composite, and metalized fibers served as the feedstock for 3D-printing. The return losses measured in the X-band and Ku-band (8.2–18 GHz) indicated a maximum return loss of −28.98 dB at 10.68 GHz, with a broad bandwidth of 6.56 GHz in the frequency range of 8.2-18 GHz. A coupled electrical–thermal analysis confirmed that the proposed carbon black-dispersed filament provided conductive paths, which contributed to direct current, energy dissipation, and lightning strike protection. The 3D-printing method ensured a sufficient level of electrical conductivity, limiting the area and depth of damage caused by lightning strikes. Therefore, 3D-printed-RASs, reinforced by electrically conductive materials, can effectively protect against lightning strikes.

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3D-printed broadband electromagnetic wave-absorbing basalt/CF/PLA composites with a high current path for lightning strike protection

Noh,

Hong,

Hoang

et al. 2024

Journal of Composite Materials

View full text Add to dashboard Cite

show abstract

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Evaluation of electromagnetic characteristics of 3D-printed radar absorbing structures based on three-dimensional period pattern surface

Cited by 1 publication

References 23 publications

3D-printed broadband electromagnetic wave-absorbing basalt/CF/PLA composites with a high current path for lightning strike protection

3D-printed broadband electromagnetic wave-absorbing basalt/CF/PLA composites with a high current path for lightning strike protection

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