Low-frequency and broad band metamaterial absorber: design, fabrication, and characterization |
| |
Authors: | Liang Kui Sun Hai Feng Cheng Yong Jiang Zhou and Jun Wang |
| |
Institution: | (1) Stanford University, Stanford, CA, USA;(2) Purdue University, West Lafayette, IN, USA; |
| |
Abstract: | We report a metamaterial absorber (MA) with a broad absorption band in the frequency region of 2–4 GHz, whose thickness is
not limited to the quarter-wavelength. Theoretical and experimental results show that the absorber has two adjacent absorption
apexes at 2.24 and 3.46 GHz, respectively, which are both related to the electric and magnetic resonances of the metamaterial.
The absorption is over 68% in the whole wave band of 2–4 GHz provided the thickness of 4 mm. The distributions of the surface
currents and the power loss density indicate that the surface currents produced by the electric and magnetic resonances are
strongly consumed by the resistive patches. This low-frequency absorber has potential applications in many scientific and
martial fields. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|