Design and evaluation of microwave absorber - metamaterial approach
Design and evaluation of microwave absorber - metamaterial approach
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微波吸收体-超材料方法的设计和评估
DOI：
10.1109/secon.2017.7925269
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Ervin Mccarroll
中科院分区：
文献类型：
--
作者：
A. Saha;Ervin Mccarroll
利用已知相对介电常数和磁导率的吸波材料设计了一种吸波材料。在此设计过程中，吸波材料与自由空间之间的阻抗匹配采用超材料方法，即在吸波材料中周期性地插入特定尺寸的金属片，以根据阻抗匹配方程计算出期望的有效介电常数。最后，在三维电磁仿真软件HFSS中对所设计的金属带材和吸波材料进行了三维建模。模拟反射系数的频率响应，验证了设计频率下的阻抗匹配，并与另一研究人员的实验结果相吻合。
a microwave absorber is designed with a given absorbing material whose relative permittivity and permeability are already known. In this design process, impedance matching between absorber and free space is performed by metamaterial approach where metal strips of specific dimension are inserted into the absorbing material periodically to achieve desired effective permittivity calculated from impedance matching equation. Finally, a microwave absorber along with designed metal strip is modeled in 3D electromagnetic simulation software HFSS. Simulated frequency response of reflection coefficient verifies impedance matching at design frequency and matches with experimental result conducted by another researcher.