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1 Journal of Telecommunications and Information Technology

1 2024

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Polarization Independent Ultra-wideband Meta-material Absorber Using Conductive Ink Resonator

Kumari Bharti, Kumar Abhinav, Kumar Prashant, Singh Mintu

Journal of Telecommunications and Information Technology

2024

nr 1

39--45

A wideband meta-material absorber with square and circular split rings that is based on a frequency selective surface of conductive ink is proposed. With over 90% absorptivity, the structure demonstrates broad absorption for the C, X, KU and K bands, as well as polarization independent characteristics for both TE and TM, at angles of up to 45°. Research has been performed to better understand the absorption phenomenon by looking into real and imaginary permittivity, permeability, normalized impedance, and surface current density. The meta-material absorber (MA) discussed in this study finds use in defense-related applications, such as radar surveillance, stealth technology, terrestrial and satellite communications.