Open Access

ARTICLE

Performance Evaluation of Electromagnetic Shield Constructed from Open-Cell Metal Foam Based on Sphere Functions

Yuya Hanaoka^1,*, Taku Itoh², Kohei Tateyama³, Susumu Nakata⁴, Keiko Watanabe³
1 Graduate School of Industrial Technology Nihon University, Narashino, Chiba 275-8575, Japan
2 College of Industrial Technology Nihon University, Narashino, Chiba 275-8575, Japan
3 College of Science and Engineering Ritsumeican University,, Kusatsu, Shiga 525-8577, Japan
4 College of Information Science and Engineering Ritsumeican University, Kusatsu, Shiga 525-8577, Japan
* Corresponding Author: Yuya Hanaoka. Email: -u.ac.jp

Computer Modeling in Engineering & Sciences 2022, 132(1), 43-53. https://doi.org/10.32604/cmes.2022.016831

Received 30 March 2021; Accepted 22 December 2021; Issue published 02 June 2022

Abstract

This study evaluates the performance of a model of open-cell metal foams generated by sphere functions. To this end, an electromagnetic shield constructed from the model was inserted between two horn antennas in an electromagnetic wave propagation simulation. The foam-hole diameter in the electromagnetic shield model was varied as d = 2.5 and 5.0 mm, and the frequency of the electromagnetic waves was varied from 3 to 13 GHz. In the numerical experiments of shield effectiveness, the shields with foam holes of both diameters attenuated the electromagnetic waves across the studied frequency range. The shield effectiveness was enhanced at low frequencies and in the shield with smaller hole diameter.

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Keywords

Electromagnetic propagation; electromagnetic shielding; materials; metal foams; numerical simulation

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