A Bandpass Frequency Selective Surface Filter for Earth Observation Satellite and Radar Applications

In this paper, a bandpass frequency selective surface filter has been suggested for the satellite and radar applications at X band regime. The study conducted both numerically experimentally in wide range between 2 GHz 14 GHz. of 3 dB bandwidth 7.3 9.3 obtained. proposed structure polarization insensitive characteristic. It also angular stability with incident angle ranges from 0° to 60° very small deviations TE TM modes. prototype FSS is composed 20x20 unit cells dimension 18cm x 18 cm. experimental studies have by using Agilent PNA-L vector network analyzer two horn antennas. can be effectively used many systems as an antenna radome prevent noises reject unwanted bands