根据合规印刷及其可穿戴系统准备的灵活接收器天线
Qian Zhu1, Wenjie Zhang1, Wencheng Zhu1
1School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210046, China.
Sensors (Basel, Switzerland)
|July 30, 2025
概括
这项研究介绍了可穿戴设备的灵活,3D打印天线,可实现稳定的无线电力传输. 该系统有效地收集能量,以供脉冲监测器等设备的连续运行.
科学领域:
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 微波能量为可穿戴设备提供稳定的无线电力传输.
- 传统的无线电频率 (RF) 能量收获器使用刚性天线,限制了可穿戴性.
- 需要灵活和合规的天线,以便舒适有效地收集可穿戴的能量.
研究的目的:
- 开发一个可穿戴的射频能量采集系统,具有灵活的双频带天线.
- 通过尽量减少由于曲而导致的性能损失来提高可穿戴性.
- 提高能源转换效率,以实现连续电源供应.
主要方法:
- 灵活的双带天线 (915 MHz/2.45 GHz) 的制造,使用在曲表面上的合规3D打印.
- 集成混合微带一次性元件整流器电路.
- 使用商业 915 MHz 发射器和 Wi-Fi 路由器测试系统.
主要成果:
- 灵活的天线最大限度地减少了模仿手臂曲率的性能损失.
- 混合整流器实现了更高的能量转换效率.
- 该系统始终传输3.27-3.31V,使得生理监测和数据传输的持续功率.
结论:
- 这项工作为灵活的可穿戴设备中可持续的能源采集提供了一个实际的解决方案.
- 合规的3D打印天线和高效的整流器电路克服了传统刚性设计的局限性.
- 开发的系统支持可穿戴设备的连续运行,用于实时监控和数据传输.
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