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Metal/Polymer Based Stretchable Antenna for Constant Frequency Far-Field Communication in Wearable Electronics

机译：基于金属/聚合物的可伸缩天线，用于可穿戴电子设备中的恒定频率远场通信

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摘要

Body integrated wearable electronics can be used for advanced health monitoring, security, and wellness. Due to the complex, asymmetric surface of human body and atypical motion such as stretching in elbow, finger joints, wrist, knee, ankle, etc. electronics integrated to body need to be physically flexible, conforming, and stretchable. In that context, state-of-the-art electronics are unusable due to their bulky, rigid, and brittle framework. Therefore, it is critical to develop stretchable electronics which can physically stretch to absorb the strain associated with body movements. While research in stretchable electronics has started to gain momentum, a stretchable antenna which can perform far-field communications and can operate at constant frequency, such that physical shape modulation will not compromise its functionality, is yet to be realized. Here, a stretchable antenna is shown, using a low-cost metal (copper) on flexible polymeric platform, which functions at constant frequency of 2.45 GHz, for far-field applications. While mounted on a stretchable fabric worn by a human subject, the fabricated antenna communicated at a distance of 80 m with 1.25 mW transmitted power. This work shows an integration strategy from compact antenna design to its practical experimentation for enhanced data communication capability in future generation wearable electronics.
机译：身体集成的可穿戴电子设备可用于高级健康监测，安全性和健康状况。由于人体复杂，不对称的表面以及非典型运动，例如在肘部，手指关节，腕部，膝盖，脚踝等处的伸展，因此集成到人体的电子设备必须具有物理柔性，顺应性和可伸展性。在这种情况下，由于其笨重，坚固且易碎的框架，因此无法使用最先进的电子设备。因此，开发可拉伸的电子设备至关重要，它可以物理拉伸以吸收与身体运动相关的应变。尽管可伸缩电子学的研究开始获得发展，但是可伸缩天线可以执行远距离通信并可以在恒定频率下工作，因此物理形状调制不会损害其功能，这尚未得到实现。此处显示了一种可伸缩天线，该天线在柔性聚合物平台上使用低成本金属（铜），可在2.45 GHz恒定频率下工作，适用于远场应用。当安装在人体所穿的可拉伸织物上时，制成的天线以1.25 mW的发射功率在80 m的距离内进行通信。这项工作展示了从紧凑型天线设计到实际实验的集成策略，以增强下一代可穿戴电子设备的数据通信能力。

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  • 来源
    《Advanced Functional Materials》 |2015年第42期|6565-6575|共11页
  • 作者

    Hussain Aftab M.; Ghaffar Farhan A.; Park Sung I.; Rogers John A.; Shamim Atif; Hussain Muhammad M.;

  • 作者单位

    King Abdullah Univ Sci & Technol, Integrated Nanotechnol Lab, CEMSE Div, Thuwal 239556900, Saudi Arabia;

    King Abdullah Univ Sci & Technol, IMAPCT Lab, CEMSE Div, Thuwal 239556900, Saudi Arabia;

    Univ Illinois, Beckman Inst Adv Sci & Technol, Dept Mat Sci & Engn, Chem Mech Sci & Engn,Elect & Comp Engn, Urbana, IL 61801 USA|Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA;

    Univ Illinois, Beckman Inst Adv Sci & Technol, Dept Mat Sci & Engn, Chem Mech Sci & Engn,Elect & Comp Engn, Urbana, IL 61801 USA|Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA;

    King Abdullah Univ Sci & Technol, IMAPCT Lab, CEMSE Div, Thuwal 239556900, Saudi Arabia;

    King Abdullah Univ Sci & Technol, Integrated Nanotechnol Lab, CEMSE Div, Thuwal 239556900, Saudi Arabia;

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