A novel combination of loop and dipole antennas into a Yagi-like structure is here investigated to implement a wearable antenna. The textile antenna is designed for being integrated into a smart glove together with a compact UHF-radio frequency identification (RFID) reader. A number of compact Yagi-like textile structures have been analyzed and compared, which consist of a rhombus-shaped folded dipole and parasitic elements acting as either a reflector or directors. The latter are needed to focus the field out of the operator hand, so limiting the radiation toward undesired directions. Four compact Yagi-like layouts (with one or two directors, with one director and one reflector, and with one reflector and two directors) are developed on a stretchable fabric and their performance is measured in terms of reflection coefficient and near-field distribution. Read range performance is measured by using COTS RFID reader and tags.

中文翻译：

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紧凑且可穿戴的八木类纺织天线，用于近场UHF-RFID读取器

本文研究了将环形天线和偶极天线组合成类似八木的新型结构，以实现可穿戴天线。纺织天线旨在与紧凑型UHF射频识别（RFID）阅读器一起集成到智能手套中。已经分析和比较了许多紧凑的八木类纺织品结构，它们由菱形折叠偶极子和用作反射镜或指向矢的寄生元件组成。需要后者来将视野聚焦在操作者的手中，从而将辐射限制在不希望的方向。四种紧凑的八木类布局（具有一两个导演，一个导演和一个反射器，并使用一个反射器和两个导向器）在可拉伸的织物上进行显影，并根据反射系数和近场分布来衡量其性能。读取范围性能是通过使用COTS RFID读取器和标签来衡量的。