The Design and Preparation of Foam Concrete Absorber for WLAN Anti-Jamming EMW-Absorber

Abstract:

This paper reports that according to the principle of EMW-absorption, thermal insulating EMW-absorber for building was designed and theoretically simulated of the λ/4 type. The EMW-absorption properties of composites in the band of 2-4 GHz were examined, A maximum absorption of-20 dB at 3 GHz and 80% of bandwidth below-10 dB was achieved under following conditions: using 380Ω/□ resistive film, specimen thickness of 2 cm. Similarly, absorbing materials for 2.45 GHz have successfully designed and prepared,a maximum absorption of-17 dB at 2.45 GHz, and 65% of bandwidth below-10 dB can be reached. New materials can be used for electromagnetic interference protection for WLAN and indoor electromagnetic radiation pollution control.

• Periodical: Advanced Materials Research (Volumes 785-786)
• Pages: 300-304
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.785-786.300
• Online since: September 2013
• Authors: Fan Wu, Wan Jun Hao, Yue Fang Zhang, Ming Ming Wang, Dong Wei Chen, Ying Ying Yi, Hui Chao Zhao, Yi Feng Dong, Xue Hong Yu
• Keywords: Absorber, Design, Foam Cement, Preparation, Wireless Local Area Network (WLAN)

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