Abstract
ABSTRACTIn this article, a new high‐gain resonant cavity (RC) antenna with a frequency selective surface (FSS) superstrate is presented at 6 GHz operating frequency. The high‐gain FSS antenna is constructed by a new FSS superstrate layer, providing more freedom to improve the radiation pattern characteristics. A hybrid FSS element placed on top of the antenna is also investigated to estimate the required number of unit cells. The achieved simulation results for this antenna are thoroughly studied and the FSS superstrate enhancing the proposed antenna gain is discussed. Moreover, parametric studies for the patch antenna with and without FSS superstrate are also presented to demonstrate the effect of the new FSS superstrate on the radiation pattern characteristics. The measured results are achieved to support the simulation ones. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:448–453, 2016
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