Volume 142, Issue 4 e56397
RESEARCH ARTICLE

Enhanced microwave absorption of sandwich panels with magnetized carbon fiber corrugated array reinforced PMI foam core

Zhuqing Zhang

Zhuqing Zhang

Henan International Joint Laboratory of Carbon Fiber Composite Material, School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou, People's Republic of China

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Haihong Wu

Corresponding Author

Haihong Wu

Henan International Joint Laboratory of Carbon Fiber Composite Material, School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou, People's Republic of China

Department of Research and Development, Zhengzhou Fangstring Advanced Materials Science and Technology Company, Zhengzhou, People's Republic of China

Correspondence

Haihong Wu and Lin Jiang, Henan International Joint Laboratory of Carbon Fiber Composite Material, School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China.

Email: [email protected] and [email protected]

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Lin Jiang

Corresponding Author

Lin Jiang

Henan International Joint Laboratory of Carbon Fiber Composite Material, School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou, People's Republic of China

Taizhou Key Laboratory of Advanced Manufacturing Technology, Taizhou Institute, Zhejiang University of Technology, Taizhou, People's Republic of China

Correspondence

Haihong Wu and Lin Jiang, Henan International Joint Laboratory of Carbon Fiber Composite Material, School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China.

Email: [email protected] and [email protected]

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Juntao Zhang

Juntao Zhang

Henan International Joint Laboratory of Carbon Fiber Composite Material, School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou, People's Republic of China

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Jiquan Li

Jiquan Li

Taizhou Key Laboratory of Advanced Manufacturing Technology, Taizhou Institute, Zhejiang University of Technology, Taizhou, People's Republic of China

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Tie Geng

Tie Geng

Henan International Joint Laboratory of Carbon Fiber Composite Material, School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou, People's Republic of China

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First published: 03 November 2024

Abstract

Integrating periodic array structures made of metal wires or conductive inks into the foam core of electromagnetic (EM) wave absorbing sandwich panels can significantly improve broadband absorption performance. However, the complex fabrication process and poor corrosion resistance of these materials limit their practical applications. This work innovatively introduces magnetized carbon fiber (CF) into PMI foam, simultaneously achieving broadband absorption and lightweight characteristics of the sandwich structure through the design of array structure and fiber bundle geometry. Simulation analysis compared the EM absorption performance of sandwich panels with carbonyl iron powder (CIP)/CF tape and helical twisted CIP/CF rope corrugated arrays, determining the optimal array structure parameters, which were then experimentally validated. The experimental results align with the simulations, showing that CIP/CF rope corrugated arrays with an amplitude of 10 mm, a cycle length of 15 mm, and an array spacing of 15 mm provide optimal absorption performance, with a reflection loss below −10 dB across the 9–18 GHz frequency range and a maximum absorption of −33.9 dB at 17 GHz. Finally, the absorption mechanism of these sandwich structures is discussed, highlighting how the synergistic effects between the electromagnetic properties and structural morphology of CIP/CF enhance the absorption performance of the EM absorbing sandwich panel.

CONFLICT OF INTEREST STATEMENT

The authors declare no conflicts of interest.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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