Microwave metamaterials made by fused deposition 3D printing of a highly conductive copper-based filament
Microwave metamaterials made by fused deposition 3D printing of a highly conductive copper-based filament
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DOI：
10.1063/1.4982718
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发表时间：
2017-05
影响因子：
4
通讯作者：
Yangbo Xie;Shengrong Ye;Christopher Reyes;P. Sithikong;B. Popa;B. Wiley;S. Cummer
中科院分区：
文献类型：
--
作者：
Yangbo Xie;Shengrong Ye;Christopher Reyes;P. Sithikong;B. Popa;B. Wiley;S. Cummer
这项工作报告了一种通过高导电聚合物复合丝的熔融沉积建模 3D 打印来制造三维微波超材料的方法。这种灯丝的电导率几乎相当于微波超材料应用的完美导体的电导率。通过设计、制造和测试宽带介电常数高达 14.4 的 3D 打印晶胞，展示了 3D 超材料设计所提供的扩展自由度。测量和模拟的 S 参数非常吻合，均方误差小于 0.1。所提出的方法不仅可以可靠、方便地制造具有高电导率的微波超材料，而且还为利用晶胞设计空间的第三维来实现增强的电磁特性打开了大门。
This work reports a method for fabricating three-dimensional microwave metamaterials by fused deposition modeling 3D printing of a highly conductive polymer composite filament. The conductivity of such a filament is shown to be nearly equivalent to that of a perfect conductor for microwave metamaterial applications. The expanded degrees-of-freedom made available by 3D metamaterial designs are demonstrated by designing, fabricating, and testing a 3D-printed unit cell with a broadband permittivity as high as 14.4. The measured and simulated S-parameters agree well with a mean squared error smaller than 0.1. The presented method not only allows reliable and convenient fabrication of microwave metamaterials with high conductivity but also opens the door to exploiting the third dimension of the unit cell design space to achieve enhanced electromagnetic properties.