Design of a free space metamaterial lens based on LC parameters at S-band

Juscelino Junior de Oliveira, Lucas Douglas Ribeiro, Elson José da Silva and Rose Mary de Souza Batalha

Journal of Electromagnetic Waves and Applications, 2021, vol. 35, issue 16, 2210-2223

Abstract: A metamaterial lens was designed based on a two-dimensional host transmission line network loaded with inductors and capacitors. The planar negative refractive index (NRI) periodic structure, consisting of a unit cell array with a concave side, works as a curved lens matched to free space operating at S-Band. An equivalent unit cell dispersion relation was developed to determine the transmission characteristics at the operating frequency range. The challenge in the metamaterial lens design is to increase the focal distance. In the simulated system, a high energy level throughout a focal region was observed in the whole frequency range. An equivalent bulky material is used as a resource to reduce computational effort.

Date: 2021
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DOI: 10.1080/09205071.2021.1934904

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