Material Characterization Using Complementary Split-Ring Resonators
Material Characterization Using Complementary Split-Ring Resonators
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DOI：
10.1109/tim.2012.2203450
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发表时间：
2012-11-01
影响因子：
5.6
通讯作者：
Ramahi, Omar M.
中科院分区：
文献类型：
--
作者：
Boybay, Muhammed Said;Ramahi, Omar M.
提出了一种基于互补开口环谐振器（CSRRs）的平面材料介电特性微波表征方法。该技术具有测量灵敏度高等优点，并消除了基于共振的方法所需的大量样品制备过程。一个传感器的形状的CSRRs工作在0.8-1.3 GHz频段的演示。该传感器被蚀刻在微带线的接地平面中，以有效地创建阻带滤波器。观察到最小透射和最小反射的频率取决于被测样品的介电常数。当样品介电常数从1变化到10时，最小传输频率从1.3变化到0.8 GHz。该结构使用印刷电路板技术制造。数值结果进行了实验验证。
A microwave method based on complementary split-ring resonators (CSRRs) is proposed for dielectric characterization of planar materials. The technique presents advantages such as high measurement sensitivity and eliminates the extensive sample preparation procedure needed in resonance-based methods. A sensor in the shape of CSRRs working at a 0.8-1.3 GHz band is demonstrated. The sensor is etched in the ground plane of a microstrip line to effectively create a stopband filter. The frequencies at which minimum transmission and minimum reflection are observed depend on the permittivity of the sample under test. The minimum transmission frequency shifts from 1.3 to 0.8 GHz as the sample permittivity changes from 1 to 10. The structure is fabricated using printed circuit board technology. Numerical findings are experimentally verified.