Volume 20 No 12 (2022)
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Metasurface Antennas for Wireless Applications: Applications & Challenges, Design of Metamaterial Unit Cell
Ripple Dhingra , and Hardeep Singh Saini
In this paper, various applications of metasurface antennas are presented and discussed. The discussion also includes the trends in designing metasurface antennas for different wireless applications. There are several challenges while designing antennas based on the metasurface concept which is also highlighted in the paper. The paper gives an indication of metasurface antennas and how they can be used to enhance certain antenna parameters. Using knowledge gained from various papers, a split ring resonator unit cell is designed and results presented. The unit cell is to behave as metamaterial, the refractive index should be negative. For this either permittivity or permeability should be negative. The unit cell has negative permittivity between 2 & 3.7GHz. and negative permeability between 4 &5.2 GHz. Hence the unit cell behaved as metamaterial in said frequency ranges.
Metamaterials, Metasurface antennas, bandwidth, gain, permeability, permittivity
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