Microwave effective medium theory for two-component magnetic metamaterials

Article type: Research Article

Authors: Rybin, Oleg^a

Affiliations: [a] Department of Information Technology, Kharkov State University of Food Technology and Trade, 333, Klochkovskaya St.; Kharkov, 61051, Ukraine. Tel.: +380 573494594 (Office); +380 956039107 (Mobile); E-mail: [email protected]

Abstract: In this paper, Effective Medium Theory for two-component metamaterial media as infinite host dielectric medium embedded periodically with cylindrical iron inclusions and spherical ones saturated with an external biasing magnetic field is developed in the microwave frequencies. The long wave approximation of effective permeability tensors for the considered metamaterial media has been obtained using the microwave extension of Effective Medium Approximation for polycrystalline ferrites and the long wave approximation of expressions of the effective magnetic permeability for two-component undiluted metal-dielectric composites with infinitely long non-magnetic metal cylindrical and spherical inclusions. The effective magnetic properties of the metamaterial media for the case of microwave propagation transverse to bias have been studied. It is shown that the considered metamaterial can exhibit the ultra-low refractive index phenomenon and the phenomenon of negative magnetic permeability for the case of microwave propagation transverse to bias. An erratum to this article can be found in [International Journal of Applied Electromagnetics and Mechanics 35(4), 2011, 307], http://iospress.metapress.com/content/v5q6821720352105/fulltext.pdf

Keywords: Metamaterials, effective medium theory, metaferrite, ultra-low index, left-hand materials

DOI: 10.3233/JAE-2011-1323

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 35, no. 2, pp. 93-101, 2011