CST – Computer Simulation Technology

Experimental demonstration of phase resonances in metallic compound gratings with subwavelength slits in the millimeter wave regime

Title:
Experimental demonstration of phase resonances in metallic compound gratings with subwavelength slits in the millimeter wave regime
Author(s):
Miguel Navarro-Cía, Diana C. Skigin, Miguel Beruete, Mario Sorolla
Source:
Applied Physics Letters
Vol./Issue/Date:
Volume: 94, Issue: 9, Mar 2009
Year:
2006
Page(s):
091107-1 - 091107-3
Abstract:
We provide experimental evidence of phase resonances in metallic periodic structures in which each period comprises several subwavelength slits of the same width. We have analyzed and measured the response of these structures in the millimeter wave regime and show that phase resonances are characterized by a remarkable minimum in the transmission response, as predicted by numerical calculations. We compare experimental with numerical results, obtaining a very good agreement between them. This experimental confirmation encourages research in compound structures and their multiple potential applications, such as frequency selective surfaces.
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