Author:
Bharti Kumari ,Abhinav Kumar ,Prashant Kumar ,Mintu Singh
Abstract
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.
Publisher
National Institute of Telecommunications
Reference20 articles.
1. C. Barde, A. Choubey, R. Sinha, S.K. Mahto, and P. Ranjan, "A Novel ZOR-inspired Patch Antenna for Vehicle Mounting Application", Ambient Communications and Computer Systems, pp. 47-53, 2019.
2. D. Schurig et al., "Metamaterial Electromagnetic Cloak at Microwave Frequencies", Science, vol. 314, no. 5801, pp. 977-980, 2006.
3. N. Fang and X. Zhang, "Imaging Properties of a Metamaterial Superlens", in: Proc. of the 2nd IEEE Conference on Nanotechnology, Washington, USA, 2002.
4. R. Yahiaoui et al., "Multispectral Terahertz Sensing with Highly Flexible Ultrathin Metamaterial Absorber", Journal of Applied Physics, vol. 118, no. 8, 2015.
5. P. Ranjan, A. Choubey, S. Kumar, and R. Sinha, "An Ultrathin Five-band Polarization Insensitive Metamaterial Absorber Having Hexagonal Array of 2D-bravais-lattice", Progress in Electromagnetics Research C, vol. 87, pp. 13-23, 2018.