Following our recent theoretical studies [M. G. Silveirinha and C. A. Fernandes, Phys. Rev. B 78, 033108 (2008)], it is experimentally verified that an array of crossed metallic wires may behave as a nonresonant material with extremely large index of refraction at microwaves and may enable the realization of ultrasubwavelength waveguides.
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CST MICROWAVE STUDIO 2006, CST GmbH, http://www.cst.com.
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The model proposed in Ref. 6 assumes that the inclusions are wires and not strips; we have taken the radius of the wires equal to , so that the perimeter of the cross section of the inclusions is the same.
© 2008 American Institute of Physics.
2008
American Institute of Physics
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