JEMAA  Vol.5 No.6 , June 2013
Metamaterial Tunable Filter Design
Abstract: This paper presents a new concept to implement a tunable filter metamaterial with dual negative refraction composed of ferrite slabs and metallic resonators, including split-ring resonators (SRR), and short wire pairs. The ferrite slabs under an applied magnetics bias provide one magnetic resonance frequency band and the metallic resonators provide another one. The continuous wires within the metamaterials provide the negative permittivity in a wide frequency band covering the two magnetic resonance bands. This type of metamaterialis analyzed in detail, and tunable stop band filters are successfully designed. The effective electromagnetic parameters obtained from the simulation of the S-parameters indicate that metamaterial exhibit negative refraction bands, which can be shifted by changing the magnetic bias.
Cite this paper: N. Benmostefa, M. Meliani and H. Ouslimani, "Metamaterial Tunable Filter Design," Journal of Electromagnetic Analysis and Applications, Vol. 5 No. 6, 2013, pp. 250-254. doi: 10.4236/jemaa.2013.56040.

[1]   V. G. Veselago, “The Electrodynamics of Substances with Simultaneously Negative Values of ε and μ,” Soviet Physics Uspekhi, Vol. 10, No. 4, 1968, pp. 509-514. doi:10.1070/PU1968v010n04ABEH003699

[2]   J. B. Pendry, “Negative Refraction Makes a Perfect Lens,” Physical Review Letters, Vol. 85, No. 18, 2000, pp. 3966-3969. doi:10.1103/PhysRevLett.85.3966

[3]   D. R. Smith, W. J. Padilla, D. C. Vier, S. C. Nemat-Nasser and S. Schultz, “Composite Medium with Simultaneously Negative Permeability and Permittivity,” Physical Review Letters, Vol. 84, No. 18, 2000, pp. 4184-4187. doi:10.1103/PhysRevLett.84.4184

[4]   Y. Huang, G. Wen, T. Li and K. Xie, “Low-Loss, Broad band and Tunable Negative Refractive Index Metamaterial,” Journal of Electromagnetic Analysis & Applications, Vol. 2, 2010, pp. 104-110. doi:10.4236/jemaa.2010.22015

[5]   L. Kang, Q. Zhao, H. J. Zhao and J. Zhou, “Ferrite-Based Magnetically Tunable Left-Handed Metamaterial Com posed of SRRs and Wires,” Optics Express, Vol. 16, No. 22, 2008, pp. 17269-17275. doi:10.1364/OE.16.017269

[6]   T. H. Feng, Y. H. Li, H. T. Jiang, W. X. Li, F. Yang, X. P. Dong and H. Chen, “Tunable Single-Negative Metamaterials Based on Microstrip Transmission Line with Varactor Diodes Loading,” Progress in Electromagnetics Research, Vol. 120, 2011, pp. 35-50.

[7]   H. J. Zhao, J. Zhou, Q. Zhao, B. Li, L. Kang and Y. Bai, “Magnetotunable Left-Handed Material Consisting of Yttrium Iron Garnet Slab and Metallic Wires,” Applied Physics Letters, Vol. 91, 2007, Article ID: 131107.

[8]   Q. Zhao, L. Kang, B. Du, B. Li, J. Zhou, H. Tang, X. Liang and B. Zhang, “Electrically Tunable Negative Permeability Metamaterials Based on Nematic Liquid Crystals,” Applied Physics Letters, Vol. 90, 2007, Article ID: 011112.

[9]   Y. X. He, P. He, S. D. Yoon, P. V. Parimi, F. J. Rachford, V. G. Harris and C. Vittoria, “Tunable Negative Index Metamaterial Using Yttrium Iron Garnet,” Journal of Magnetism and Magnetic Materials, Vol. 313, No. 1, 2007, pp. 187-191. doi:10.1016/j.jmmm.2006.12.031