Space-fed Array Variations of E-shape and U-slot cut Rectangular Microstrip Antennas using Modified Feed for Gain Enhancement

Space-fed Array Variations of E-shape and U-slot cut Rectangular Microstrip Antennas using Modified Feed for Gain Enhancement

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Abstract Space-fed array comprising of E-shape or U-slot cut rectangular microstrip antennas using the modified feed designs are proposed for higher gain and wider bandwidth.Modified feed optimally illuminates the edge space-fed elements to achieve a maximum gain.Amongst the two space-fed array variations, 7 x 7 seattle seahawks socks E-shape space-fed array, excited using the feed comprising of gap-coupled and stacked E-shape patches provides bandwidth and here gain of 2.

085 GHz (48.97%) and 18.5 dBi, respectively.

The antenna exhibits broadside radiation pattern across the complete bandwidth.An experimental validation has been carried out for the simulated results that show a close agreement.