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A design strategy using a dual-band frequency selective surface (FSS) consisting of double rectangular ring elements to improve the bandwidth and gain, and to optimize the onsets of two operating frequencies for a U-slot patch antenna is presented. After implanting the FSS in the U-slot patch antenna, it is found that the bandwidths have been improved from 3.14 % to 5.51 % and 5.48% to 7.48% at resonant...
A dual-band FSS with Jerusalem cross elements was proposed to improve the bandwidth of U-slot patch antennas. From studies, it is shown that the simulation data in general agree with the measurement results for the U-slot patch antennas implemented with a FSS. The U-slot patch antenna using a FSS with Jerusalem cross elements has been proven to provide dual-band and wide-band operation for WLAN applications.
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