Low loss dual polarized matched zero index metamaterials for microwave applications

Planar multilayer dual polarized zero index metamaterials using cascaded frequency selective surface screens were presented. Two structures with three and four screens, respectively, were optimized by a genetic algorithm to have a very low effective refractive index and an effective impedance matche...

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Bibliographic Details
Main Authors: Zhihao Jiang, Bossard, J.A., Werner, D.H.
Format: Conference Proceeding
Language:English
Subjects:
Dielectrics
Fabrication
Frequency selective surfaces
Genetic algorithms
Geometry
Metamaterials
Nonhomogeneous media
Polarization
Refractive index
Surface impedance
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Summary:Planar multilayer dual polarized zero index metamaterials using cascaded frequency selective surface screens were presented. Two structures with three and four screens, respectively, were optimized by a genetic algorithm to have a very low effective refractive index and an effective impedance matched to free space. Fabrication constraints on the screen geometry and the dielectric layers were included to guarantee that the design can be correctly fabricated.
ISSN:1522-3965
1947-1491
DOI:10.1109/APS.2009.5172200