A Six-Fold Symmetric Metamaterial Absorber

Materials

Humberto Fernández Álvarez¹  Mar໚ Elena de Cos Gómez²  Fernando Las-Heras² 

[1] Área de Teoría de la Señal y Comunicaciones, Dpt. Ingeniería Eléctrica, Universidad de Oviedo, Edificio Polivalente, Mod. 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/ma8041590

来源: mdpi

【 摘 要 】

A novel microwave metamaterial absorber design is introduced along with its manufacturing and characterization. Significant results considering both bandwidth and angular stability are achieved. Parametric analysis and simplified equivalent circuit are provided to give an insight on the key elements influencing the absorber performance. In addition, the constitutive parameters of the effective medium model are obtained and related to the absorber resonant behavior. Moreover, a new thinner and more flexible absorber version, preserving broad bandwidth and angular insensitive performance, is simulated, and an 8 × 8 unit-cells prototype is manufactured and measured for a limited angular margin in an anechoic chamber.

【 授权许可】

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