A Thin C-Band Polarization and Incidence Angle-Insensitive Metamaterial Perfect Absorber

Materials

Humberto Fernández Álvarez¹  Maria Elena de Cos Gómez²  Fernando Las-Heras² 

[1] Signal Theory and Communications Area, Department of Electrical Engineering, University of Oviedo, Multi-Purpose Building, Module 8, Gijón 33203, Asturias, Spain;

关键词: metamaterial absorber (MMA);    double-negative media (DNM);    negative refractive index (NIR);    left-handed media (LHM);    polarization insensitive;    angular stability;   

DOI  :  10.3390/ma8041666

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.