An all-dielectric band-stop frequency-selective surface

Abstract

In this paper, an all-dielectric band-stop frequency-selective surface (FSS) is proposed for X-band applications. The unit particle of the FSS consists of a thick upper hexagonal prism part and a thin lower hexagonal prism part for monolithic construction. The proposed FSS has a planar array of hexagonal ceramic prisms with a honeycomb-shaped structure. The proposed FSS has three resonant dips. These are combined to establish a -10 dB fractional bandwidth (FBW) with a broad stop-band of 31.8% (center frequency of 9.75 GHz). To demonstrate the resonant characteristic modes, cylindrical cavity mode analysis based on cylindrical wave functions is used. (c) 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:56-60, 2017