Artículo
Accurate circuit modeling of fishnet structures for negative-index-medium applications
Autor/es | Torres, Víctor
Mesa Ledesma, Francisco Luis Navarro Cía, Miguel Rodríguez Berral, Raúl Beruete, Miguel Medina Mena, Francisco |
Departamento | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo Universidad de Sevilla. Departamento de Física Aplicada I |
Fecha de publicación | 2016 |
Fecha de depósito | 2020-05-26 |
Publicado en |
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Resumen | Metallic plates with a two-dimensional (2D) periodic distribution of sub-wavelength apertures are known to exhibit extraordinary transmission of electromagnetic waves. Stacking two or more of such plates gives place to the ... Metallic plates with a two-dimensional (2D) periodic distribution of sub-wavelength apertures are known to exhibit extraordinary transmission of electromagnetic waves. Stacking two or more of such plates gives place to the so-called fishnet structures, which constitute a popular way of achieving an effective negative index medium at frequencies ranging from microwaves to optics. Unfortunately, a general wideband equivalent circuit has not yet been proposed to facilitate its understanding and design. This work presents this circuit model with closed-form expressions for the circuit elements, thus making it possible to obtain the electrical response for this class of structures in a very efficient way. This procedure is much faster than alternative numerical methods at the same time that it retains a high level of accuracy when compared with some other oversimplified models. The circuit model also provides a simple rationale as well as a good physical insight in order to explain the qualitative behavior of such structures, independently of the number of stacked layers. |
Identificador del proyecto | TEC2011-28664-C02-01
TEC2014-51902-C2-2-R TEC2013-41913-P CSD2008-00066 P12-TIC-1435 |
Cita | Torres, V., Mesa Ledesma, F.L., Navarro Cía, M., Rodríguez Berral, R., Beruete, M. y Medina Mena, F. (2016). Accurate circuit modeling of fishnet structures for negative-index-medium applications. IEEE Transactions on Microwave Theory and Techniques, 64 (1), 15-26. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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Accurate Circuit Modeling.pdf | 2.930Mb | [PDF] | Ver/ | |