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Chiral Braided and Woven Composites: Design, Fabrication, and Electromagnetic Characterization

机译:手性编织和机织复合材料:设计,制造和电磁表征

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摘要

This work presents a new chiral composite composed of copper wires braided with Kevlar and nylon to form conductive coils integrated among structural fiber. To create a fabric, these braids were woven with plain Kevlar fiber. This yielded a composite with all coils possessing the same handedness, producing a chiral material. The electromagnetic response of this fabric was first simulated using a finite element full-wave simulation. For the electromagnetic measurement, the sample was placed between two lens-horn antennas connected to a Vector Network Analyzer. The frequency response of the sample was scanned between 5.5 and 8GHz. The measured scattering parameters were then compared to those of the simulated model. The measured parameters agreed well with the simulation results, showing a considerable chirality within the measured frequency band. The new composite combines the strength and durability of traditional composites with an electromagnetic design to create a multifunctional material.
机译:这项工作提出了一种新的手性复合材料,该复合材料由铜线与凯夫拉尔纤维和尼龙编织而成,以形成集成在结构纤维之间的导电线圈。为了制作织物,这些辫子用普通的凯夫拉尔纤维编织而成。这样就产生了一种复合材料,其中所有线圈都具有相同的螺旋性,从而生产出一种手性材料。首先使用有限元全波模拟来模拟这种织物的电磁响应。为了进行电磁测量,将样品放置在两个与矢量网络分析仪相连的镜角天线之间。在5.5至8GHz之间扫描样品的频率响应。然后将测得的散射参数与模拟模型的散射参数进行比较。测得的参数与模拟结果吻合得很好,显示出在测得的频带内有相当大的手性。新型复合材料将传统复合材料的强度和耐用性与电磁设计完美结合,创造出一种多功能材料。

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