Additively Manufactured Stress-strain Dependant Frequency Reconfigurable Antenna for Pressure Sensor Applications

IF 0.7 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science Pub Date : 2024-02-13 DOI:10.5755/j02.ms.34879

Deepa Nivethika Sivasubramani

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引用次数: 0

Abstract

A novel additive-manufactured antenna for stretchable sensor application is designed, simulated and measured. The fully transparent antenna has air as a substrate and a conductive aluminium metal sheet as a patch. The layers are defined with thin Thermo Poly Urethane (TPU) material, as its flexible/stretchable property doesn't disturb the actual property of air. The air substrate is locked within the flexible TPU with a thickness of 200 microns, and the conducting patch is also dimensioned with the 3D printing method. The stretchable antenna is fabricated with 3D printing technology, considered a dielectric medium, and the conducting medium is a conducting aluminium sheet. Re-configurability is achieved with the pressure level applied over the air–substrate antenna. Hence, the minimal change in shape changes the dielectric constant, thus changing the antenna parameter and radiation pattern. The antenna achieves improved size and performance with a gain of 7.2 dB, a directivity of 7.574 dB, a radiation efficiency of 95.67 %, and a 12:509 front-to-back ratio. The fabricated antenna is tested for its resonant characteristics and radiation properties. This reconfigurable antenna can be used for various applications, including Wireless Local Area Network (WLAN) communication.

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用于压力传感器应用的增材制造应力应变相关频率可重构天线

设计、模拟和测量了一种用于可拉伸传感器应用的新型添加剂制造天线。这种全透明天线以空气为基底，以导电铝金属片为贴片。由于热塑性聚氨酯（TPU）材料的柔性/可拉伸特性不会干扰空气的实际特性，因此这些层由薄薄的热塑性聚氨酯（TPU）材料定义。空气基板被锁定在厚度为 200 微米的柔性热塑性聚氨酯中，导电贴片也是通过 3D 打印方法确定尺寸的。利用三维打印技术制造的可拉伸天线被认为是一种介电介质，而导电介质则是导电铝片。可重新配置性是通过在空气-基底天线上施加的压力水平来实现的。因此，形状的最小变化就能改变介电常数，从而改变天线参数和辐射模式。天线的尺寸和性能都得到了改善，增益为 7.2 dB，指向性为 7.574 dB，辐射效率为 95.67 %，前后比为 12:509。对制作的天线进行了谐振特性和辐射特性测试。这种可重构天线可用于各种应用，包括无线局域网（WLAN）通信。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Science 工程技术-材料科学：综合

CiteScore

1.60

自引率

44.40%

发文量

审稿时长

4-8 weeks

期刊介绍： Materials Science reports on current research into such problems as cracking, fatigue and fracture, especially in active environments as well as corrosion and anticorrosion protection of structural metallic and polymer materials, and the development of new materials.