This letter presents a novel wide band miniaturized-element frequency selective surface (MEFSS).The simulation and measurement\nresults show that the bandwidth of the proposed MEFSS is remarkably enhanced compared to that of an original second-order\nMEFSS while its size and total thickness are still small.Aparametric study is also conducted to understand the operating mechanism\nof the proposed structure.The phenomenon observed in the parametric study is explained with an equivalent circuit model.
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