Fabrication of Textile Antennas and Circuits With 0.1 mm Precision
Fabrication of Textile Antennas and Circuits With 0.1 mm Precision
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DOI：
10.1109/lawp.2015.2435257
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发表时间：
2016-01-01
影响因子：
4.2
通讯作者：
Volakis, John L.
中科院分区：
文献类型：
--
作者：
Kiourti, Asimina;Lee, Cedric;Volakis, John L.
我们提出了一种新的选择e纤维（也被称为e线）和相关的刺绣工艺。新的e螺纹和工艺实现了几何精度低至0.1毫米。因此，第一次，典型印刷电路板（PCB）原型的精度可以直接在纺织品上实现。与我们最新的刺绣方法相比，所提出的工艺实现了：1)几何精度提高了3倍；2)制造成本降低24倍；3)制造时间缩短50%；4)同样良好的射频性能。这一改进是通过采用一种新型的非常薄的7丝Elektrisola e线（直径约为0.12 mm，几乎比以前薄2倍）来实现的。为了验证我们的方法，我们“打印”并测试了一个工作在1-5 GHz之间的纺织螺旋天线。测量结果与仿真结果吻合较好。我们设想将这种纺织螺旋集成到一个帽子中，并从无线全被动大脑植入物中轻松获取神经电位。总的来说，所提出的刺绣方法为广泛的应用提供了新的可能性。
We present a new selection of E-fibers (also referred to as E-threads) and associated embroidery process. The new E-threads and process achieve a geometrical precision down to 0.1 mm. Thus, for the first time, accuracy of typical printed circuit board (PCB) prototypes can be achieved directly on textiles. Compared to our latest embroidery approach, the proposed process achieves: 1) 3x higher geometrical precision; 2) 24x lower fabrication cost; 3) 50% less fabrication time; and 4) equally good RF performance. This improvement was achieved by employing a new class of very thin, 7-filament, Elektrisola E-threads (diameter approximate to 0.12 mm, almost 2x thinner than before). To validate our approach, we "printed" and tested a textile spiral antenna operating between 1-5 GHz. Measurement results were in good agreement with simulations. We envision this textile spiral to be integrated within a cap and unobtrusively acquire neuropotentials from wireless fully-passive brain implants. Overall, the proposed embroidery approach brings forward new possibilities for a wide range of applications.