A Thin C-Band Polarization and Incidence Angle-Insensitive Metamaterial Perfect Absorber |
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| Authors: | Humberto Fernández álvarez Maria Elena de Cos Gómez Fernando Las-Heras |
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| Affiliation: | Signal Theory and Communications Area, Department of Electrical Engineering, University of Oviedo, Multi-Purpose Building, Module 8, Gijón 33203, Asturias, Spain; E-Mails: (M.E.C.G.); (F.L.-H.) |
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| Abstract: | A novel metamaterial absorber design able to operate in the C frequency band is presented, along with an analysis and a method to improve both its bandwidth and its angular stability. Simulation results for a FR4-based design are shown for comparison with existing designs. In addition, a simplified equivalent circuit is provided for a better understanding of the great angular stability and wide bandwidth exhibited by the proposed structure. Moreover, simulations, manufacturing and measurements of a thinner and more flexible metamaterial absorber, keeping the angular stability of the former one, while providing a wide bandwidth, are presented. |
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| Keywords: | metamaterial absorber (MMA) double-negative media (DNM) negative refractive index (NIR) left-handed media (LHM) polarization insensitive angular stability |
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