通过选择性聚合物金属化制造的体积3D打印天线
Volumetric 3D-printed antennas, manufactured via selective polymer metallization
摘要：
增材制造为有效探索第三空间维度铺平了新的道路，提供了优于传统平面架构的优势。特别是，体积电磁天线可以表现出优越的特性，优于其平面对应物。在这里，一种新的方法来制造的电磁设备的开发和应用到天线，实现曲面。高度定向和宽带天线被3D打印在半球形支架上。天线骨架和支撑件分别用不同的聚合物材料-混合有石墨烯薄片的PLA和纯PLA同时印刷。对弱直流导电石墨烯PLA基骨架进行后处理，并在其上选择性电化学沉积高质量的导电铜层。天线器件显示出与传统制造方法相似的辐射性能。然而，RF天线的增材制造提供了构建具有由非标准化最终用户预定义的属性的定制设备的卓越能力。
英文摘要：
Additive manufacturing paves new ways to an efficient exploration of the third space dimension, providing advantages over conventional planar architectures. In particular, volumetric electromagnetic antennas can demonstrate superior characteristics, outperforming their planar counterparts. Here a new approach to the fabrication of electromagnetic devices is developed and applied to antennas, implemented on curved surfaces. Highly directive and broadband antennas were 3D-printed on hemispherical supports. The antenna skeleton and the support were simultaneously printed with different polymer materials - PLA mixed with graphene flakes and pure PLA, respectfully. Weakly DC-conductive graphene PLA-based skeleton was post-processed and high-quality conductive copper layer was selectively electrochemically deposited on it. The antenna devices were found to demonstrate radiation performance, similar to that achievable with conventional fabrication approaches. However, additive manufacturing of RF antennas provides superior capabilities of constructing tailor-made devices with properties, pre-defined by non-standardized end users.
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