Article
Wideband analytical equivalent circuit for coupled asymmetrical nonaligned slit arrays
Author/s | Molero Jiménez, Carlos
Rodríguez Berral, Raúl Mesa Ledesma, Francisco Luis Medina Mena, Francisco |
Department | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo Universidad de Sevilla. Departamento de Física Aplicada I |
Publication Date | 2017 |
Deposit Date | 2018-05-29 |
Published in |
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Abstract | Microstructured metallic devices have been extensively studied because of their interesting properties for controlling the transmission, reflection, and absorption of electromagnetic waves. A very simple implementation is ... Microstructured metallic devices have been extensively studied because of their interesting properties for controlling the transmission, reflection, and absorption of electromagnetic waves. A very simple implementation is an array of infinitely long parallel metal strips printed on a dielectric substrate. In the past few years, several analytical models have been reported based on the use of equivalent circuits with distributed and lumped components to account for the electrical performance of these structures. However, the proposed models are restricted to highly symmetrical configurations of the basic unit cell of the periodic structure. The purpose of this paper is to present the nontrivial extension of such circuit models to deal with nonsymmetrical structures. More specifically, a wideband equivalent-circuit model will be developed to describe the scattering properties of a pair of coupled different nonaligned slit gratings printed on a dielectric slab of arbitrary thickness. The relevant consequences of the lack of symmetry of the structures under study will be thoroughly discussed. The obtained equivalent network can be straightforwardly used to model stacked structures with an arbitrary number of nonsymmetrical striplike arrays. |
Funding agencies | Ministerio de Economía y Competitividad (MINECO). España Junta de Andalucía |
Project ID. | TEC2013-41913-P
P12-TIC-1435 |
Citation | Molero Jiménez, C., Rodríguez Berral, R., Mesa Ledesma, F.L. y Medina Mena, F. (2017). Wideband analytical equivalent circuit for coupled asymmetrical nonaligned slit arrays. Physical review. E, 95 (2), 023303-. |
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