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Asian Journal of Convergence in Technology
A compact quad-band metamaterial inspired microwave absorber with wide incidence angle has been reported. The unit cell is composed of L-shaped resonators enclosing a square patch carved on a low cost metal-backed FR-4 dielectric substrate. The optimized absorber exhibits absorption peaks at 1.92GHz, 2.15GHz, 2.44GHz and 2.6GHz thereby covering L-band and S-band frequencies for EMI/EMC applications. The full width at half maxima (FWHM) bandwidth of 19.7% extending from 2.1GHz to 2.56GHz isfatcat:qxbtkata5nehzhscedsldmmivm