A second‐order band‐pass frequency selective surface using nonresonant subwavelength periodic structures

A new class of band-pass frequency selective surface (FSS) with nonresonant constituting elements and sub-wavelength unit-cell dimensions and periodicities is presented and experimentally demonstrated. Using this technique, low profile first- and second-order FSSs with reduced sensitivity to the angle of incidence for both TE and TM polarizations are designed, a prototype is fabricated and the FSS measurement results are presented and discussed. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1639–1643, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23445