宽带
带宽(计算)
中心频率
部分带宽
材料科学
频带
光学
电磁干扰
光电子学
物理
计算机科学
电信
带通滤波器
谐振器
作者
Yogita Khanna,Yogendra Kumar Awasthi
出处
期刊:International Journal of Microwave and Wireless Technologies
[Cambridge University Press]
日期:2021-06-25
卷期号:14 (5): 573-579
被引量:6
标识
DOI:10.1017/s1759078721000970
摘要
Abstract In this paper, a wideband ultrathin metasurface absorber is investigated. The proposed absorber comprises a periodic array of a unit cell ring structure. The ring structure and patch inside are tuned to realize the desired frequency bandwidth. The structure has a frequency bandwidth of 7.4 GHz with a center frequency of 15 GHz and fractional bandwidth of 50%. Simulated and measured results show that the absorption at normal incidence is above 90% in the frequency range of 11.3–18.7 GHz. Furthermore, the thickness of the structure is 1.6 mm. The physical mechanism of the metasurface absorber has been analyzed and justified experimentally.
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