Simulation of S- and L-band FSS reflector antenna

A dual band FSS (Frequency Selective Surface) reflector antenna that operates in the S- and L-bands with gains of 8 dBi and 11 dBi at 1 GHz and 2.5 GHz respectively is demonstrated. The antenna has been simulated successfully showing good results in CST MWS (Microwave Studio) EM (Electromagnetic) simulation software. The reflector antenna consists of a dual band trap dipole antenna situated over an FSS upper parabolic reflector and a PEC (Perfect Electrical Conductor) lower parabolic reflector. The convoluted design of the FSS gives it angular and polarisation stability with a stop band centred at 2.5 GHz.