Wireless technologies are essential components of wearable devices for applications ranging from connected healthcare to human–machine interfaces. Their performance, however, is hindered by the human body, which obstructs the propagation of wireless signals over a wide range of directions. Here, we demonstrate conformal propagation and near-omnidirectional radiation of wireless signals near the body using clothing integrated with spoof surface plasmonic (SSP) structures. These structures, fabricated entirely from conductive textiles, induce wireless signals emitted by nearby antennas to propagate around the body as surface waves and radiate as propagating waves in directions otherwise obstructed by the body. We describe the procedure for designing textile-based spoof surface plasmon waveguides, radiating elements, and impedance matching sections for operation in the 2.4–2.5 GHz industrial, scientific, and medical (ISM) band. Using a tissue phantom model of the human torso, we experimentally demonstrate 2.62 greater angular coverage by a dipole placed near the body compared to without the clothing.

中文翻译：

---

表面等离子体服装的共形传播和近全向辐射

无线技术是可穿戴设备的重要组成部分，适用于从互联医疗到人机界面的各种应用。然而，它们的性能受到人体的阻碍，人体阻碍了无线信号在广泛的方向上的传播。在这里，我们使用与欺骗表面等离子体 (SSP) 结构集成的衣服展示了身体附近无线信号的共形传播和近乎全向辐射。这些完全由导电纺织品制成的结构会诱导附近天线发射的无线信号以表面波的形式在身体周围传播，并以传播波的形式向身体阻挡的方向辐射。我们描述了设计基于纺织品的欺骗表面等离子体波导、辐射元件、和阻抗匹配部分，用于在 2.4–2.5 GHz 工业、科学和医疗 (ISM) 频段中运行。使用人体躯干的组织幻影模型，我们通过实验证明，与不穿衣服相比，放置在身体附近的偶极子的角度覆盖范围要大 2.62。