Open AccessA broadband transmission absorption polarization-independent metamaterial absorber
Author(s) -
Linfeng Lu,
Shaobo Qu,
Haiyang Shi,
Anxue Zhang,
Song Xia,
Zhuo Xu,
Jieqiu Zhang
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.028103
Subject(s) - metamaterial absorber , metamaterial , broadband , materials science , molar absorptivity , optics , polarization (electrochemistry) , frequency band , low frequency , transmission coefficient , absorption (acoustics) , attenuation coefficient , transmission (telecommunications) , optoelectronics , tunable metamaterials , physics , bandwidth (computing) , telecommunications , computer science , chemistry , astronomy
In this paper, we propose a new metamaterial absorber based on magnetic absorbing material. This absorber has the characteristics of low-frequency transmission and high-frequency broadband absorption. The transmission coefficient of the metamaterial absorber is-0.5 dB at 1 GHz: the good low-frequency transmission property can realize intercommunication between the low-frequency signals. The absorptivity is greater than 80% in the frequency range above 8.4 GHz, which almost covers all the X-band and Ku-band frequencies. In addition, the metamaterial absorber is polarization-independent due to the fourfold rotational symmetry of the unit cell metallic periodic structure. The metamateiral absorber has the advantages of simple design, strong practicability, and high potential application value.