Broadband Microwave Transmission Achieved by Using Engineered Sandwich Materials

Abstract:

In order to improve the transmission of the energy and broaden the frequency band of an electromagnetic wave in the microwave frequency spectrum propagating through a slab of a polymeric material, we designed an optimized material system where a periodic array of metamaterial unit cells are embedded into a polymeric medium in a sandwich-like configuration. The optimization method targeted the overall size and geometrical characteristics of the metamaterial element that can meet the desired energy transmission requirements given a certain materials thickness and materials dielectric properties. The numerical results conducted on this type of metamaterials in a sandwich-like configuration showed that it is possible to attain a high degree of transparency with broadband characteristics by optimizing the performance of the metamaterials in correspondence of the transmission zeros of the substrate.

• Periodical: Advanced Materials Research (Volumes 915-916)
• Pages: 493-497
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.915-916.493
• Online since: April 2014
• Authors: Fabrizia Ghezzo*, Xiang Yi, Xi Geng Miao, Chun Lin Ji, Ruo Peng Liu
• Keywords: Metamaterials, Microwave Transmission, Sandwich Structures, S-Parameters, Transmission Zeros

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