Effective electromagnetic properties of honeycomb substrate coated with dielectric or magnetic layer |
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Authors: | L. Liu C. Z. Fan N. B. Zhu Z. Y. Zhao R. P. Liu |
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Affiliation: | 1. State Key Laboratory of Meta-RF Electromagnetic Modulation Technology, Kuang-Chi Institute of Advanced Technology, Shenzhen, 518057, People’s Republic of China
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Abstract: | Effective electromagnetic properties of aramid honeycomb board coated with a layer of multi-wall carbon nanotube or iron flakes composites were measured with waveguide method from 4 to 12 GHz. It was proved that homogenization theory could predict the effective permittivity or permeability of the honeycomb composites with good accuracy. The coated honeycomb composites of relatively high permittivity and permeability could potentially be used to develop dielectric or magnetic substrate for shielding layer or absorbing structures working at microwave frequencies. |
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