It is expected that the global wearable devices market is expected to exceed U.S. $77.3 billion by 2025 [item 1) in the Appendix] because wearable devices are becoming more and more popular for fitness and sports, entertainment, health care, defense, industrial monitoring, and so on. Particularly because of the aging problems worldwide, cloth-like wearable health monitoring systems with wireless features have drawn much attention. Such kinds of wearable health monitoring systems must be flexible and foldable.

中文翻译：

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收集环境射频能量为可穿戴设备供电

预计到 2025 年，全球可穿戴设备市场预计将超过 773 亿美元[附录中的第 1 项]，因为可穿戴设备在健身和运动、娱乐、医疗保健、国防、工业监控、等等。特别是由于世界范围内的老化问题，具有无线功能的类似布料的可穿戴健康监测系统备受关注。此类可穿戴健康监测系统必须具有灵活性和可折叠性。