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A superstrate layer is used to enhance the directivity of the small radiation sources such as Microstrip Patch Antennas. In this paper, we use square loop frequency selective surface (SLFSS) configuration to design the superstrate layer. To compact the structure, we propose a new single layer square loop FSS configuration that operates in two frequency bands such as multi-layer SL-FSS. Simulation results are shown to have good agreement with experimental results.

ANALYSIS AND DESIGN OF DUAL BAND HIGH DIRECTIVE EBG RESONATOR ANTENNA USING SQUARE LOOP FSS AS SUPERSTRATE LAYER