Polarization Independent Ultra-wideband Meta-material Absorber Using Conductive Ink Resonator
DOI:
https://doi.org/10.26636/jtit.2024.1.1392Keywords:
meta-material absorber, microwave absorber, wideband absorberAbstract
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.
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Copyright (c) 2024 Bharti Kumari, Abhinav Kumar, Prashant Kumar, Mintu Singh
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