Abstract
In this paper, an ultrathin Swastik shape unit cell structure of a metamaterial absorber (MA) is capable of increasing absorption in the X-band spectrum for a variety of applications. The structure of the MA is arranged periodically and has a swastika shape with lumped resistor resonator. In addition to having an intuitive design, the unit cell structure is able to absorb more than 80% of the desired band. The simulated result shows two absorption peaks at 5.05 and 12.60 GHz with more than 95% absorptivity. A proposed absorber provides absorption bandwidths between 4.19 and 13.33 GHz (9.14 GHz) in Full-Width Half Maxima (FWHM). An ultrathin absorber has a thickness of 0.035 mm, which is nearly λ/10 corresponding to the absorption central frequency of 8.67 GHz. The unit cell’s size of MA is 9 × 9 mm2, with a thickness of 3.2 mm (0.0346 λ).
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Kumar, P., Sinha, R., Choubey, A., Mahto, S.K., Pal, P., Kumar, R. (2023). Design of Wideband Metamaterial Absorber for X-Band Application. In: Namrata, K., Priyadarshi, N., Bansal, R.C., Kumar, J. (eds) Smart Energy and Advancement in Power Technologies. Lecture Notes in Electrical Engineering, vol 927. Springer, Singapore. https://doi.org/10.1007/978-981-19-4975-3_27
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DOI: https://doi.org/10.1007/978-981-19-4975-3_27
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