Abstract
The shape of the radiating patch exerts a great influence on the performance of the microstrip patch. The vital target of this research article is to constitute the microstrip antennas of rectangular, elliptical, triangular and square patches on FR4 substrate employing partial ground that notably lower the shape complexity and hence the antenna size reduction with profitable results on the basis of the center frequency of 8.5 GHz. The execution specification, such as S-parameter, gain, VSWR, and the directivity of the antenna, is investigated using ANSYS HFSS 13.0 software, which reveals beneficial outcomes of dual-band operation over the entire band frequency range of 5-15 GHz. The antenna gives poor results without any modification to the ground structure. But good bandwidth, dual band nature, better gain directivity, VSWR, and the best efficiency are achieved by the introduction of partial ground in the design of all the shapes. This is applicable for Marine Radar Communication (SART), Effective Satellite Communications, and Wireless Communication applications like weather monitoring, defense, and military purposes.
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