WIDEBAND NEGATIVE PERMITTIVITY METAMATERIAL FOR SIZE REDUCTION OF STOPBAND FILTER IN ANTENNA APPLICATIONS

The design and simplifled analysis of a compact and wide band (16%) negative permittivity complementary split ring resonator metamaterial is introduced. The proposed metamaterial component was applied to reduce the size of the feeding line fllter of microstrip patch antenna for the sake of higher order harmonic suppression. The reduction has been done using only one element of complementary split ring resonator, while maintaining the antenna's performance. Simplifled theoretical study and design of the proposed circuits has been presented. Moreover, experimental results have been done for validation and conformation purpose. Results conflrm that almost 95% of the antenna noise harmonics power has been removed.