Design of multiple dual-band FSS reflector plate applied to reflector antenna

A multiple dual-band frequency selective surface (FSS) with band-pass and band-stop response at each band of operation is presented. The geometry comprises two different finite planar array metallic patches on a single dielectric layer, which can act as a dichroic reflector and overcome the drawbacks of narrowband and polarization stability. Both theoretical and experimental investigations are carried out. Excellent agreement between simulation and measured results shows the validity of the theoretical analysis.