A simple dual‐band frequency selective surface

Design and experimental investigations are presented for a dual-band frequency selective surface (FSS) with perfectly conducting rectangular patch elements. The work was developed in two steps. In the first step, two single-band FSS screens were designed to obtain resonant frequencies at 9.5 GHz and 10.5 GHz, each one with about 1.5 GHz bandwidth. In the second step, these single FSS screens were cascaded and separated by an air gap layer to achieve a dual-band response. The proposed dual-band FSS screen is easy to analyze and to fabricate with low cost materials and exhibits a low weight and easy to handle structure. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 942–944, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24236

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