Wide stop-band angular stable frequency selective surface for millimeter-wave applications

Abstract

A wide stop-band angular stable frequency selective surface (FSS) is presented. This FSS consist of two spiral structures separated by a substrate in the middle. It exhibits a wide stop-band of 20 GHz in the frequency range of V-band. Furthermore it produces a stable angular response upto 80 degree for both TE and TM incidence modes. Since it provides a wide stop-band and good angular stability, it is suitable for millimeter-wave shielding applications.