Abstract
In this paper, the relationship between the number of unit-cells used in the design of a frequency selective surface (FSS) and its expected directivity is established. The relationship between the number of FSS unit-cells and the directivity is based on the planer microstrip patch array antenna design concept where the unit-cell is treated as the superstrate illuminated by the source. To validate the proposed technique, the analytical value of the directivity has been compared with that of ray-tracing method. The directivity of antenna is calculated for two different planar array configurations at 600 GHz. The results of numerical analysis are compared to that of the full-wave electromagnetic simulator CST Microwave Studio and results are comparable. Further, the directivity computed by this proposed technique has also been compared with that of the reported in literatures.
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The authors are sincerely thankful to anonymous reviewers for the critical comments and suggestions to improve the quality of the manuscript.
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Jha, K.R., Singh, G. Effect of unit-cells of the frequency selective surface as superstrate on the directivity of rectangular microstrip antenna. J Comput Electron 13, 496–502 (2014). https://doi.org/10.1007/s10825-014-0560-5
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DOI: https://doi.org/10.1007/s10825-014-0560-5