针对物联网设备的双频段802.11射频能量采集优化,改进了补丁天线设计和阻抗匹配
Ashraf Ali1, Rama Eid1, Digham Emad Manaseer1
1Department of Electrical Engineering, Faculty of Engineering, The Hashemite University, Zarqa 13133, Jordan.
Sensors (Basel, Switzerland)
|February 26, 2025
概括
这项研究展示了一种双频天线,用于收集Wi-Fi能量,为物联网 (IoT) 设备提供动力. 这种可持续的解决方案解决了远程物联网应用程序和无线传感器网络的功率限制.
科学领域:
- 电气工程 电气工程
- 无线通信无线通信
- 收集能源 收集能源
背景情况:
- 物联网 (IoT) 设备和无线传感器网络 (WSN) 的普及需要可持续的电力解决方案.
- 偏远地区的有限电力接入挑战了低功耗物联网设备的运行寿命.
- 收获无线电频率 (RF) 能量为传统电源提供了可行的替代方案.
研究的目的:
- 调查从Wi-Fi频段 (2.4GHz和5GHz) 收集射频 (RF) 能量的可行性.
- 设计,模拟和制造双频天线,以有效地捕获Wi-Fi能量.
- 开发一个阻抗匹配网络,以优化射频到直流功率转换.
主要方法:
- 使用高频模拟器设计和模拟双频段C形和F形微带天线.
- 优化天线设计以实现阻抗匹配和高效的RF-DC转换.
- 对天线性能进行制造和实验验证,重点关注反射系数.
主要成果:
- 拟议的双频天线设计显示了高效率,通过模拟和实验结果得到证实.
- 优化阻抗匹配和阻抗匹配网络显著减少信号反射.
- 有效地将收获的Wi-Fi射频能量转化为物联网设备的可用电能.
结论:
- 开发的双频天线系统有效地收集Wi-Fi能量,为低功耗物联网设备提供可持续的电源.
- 这项技术为远程位置的设备供电提供了实用解决方案,提高了无线传感器网络的寿命.
- 这项研究为更自主和持久的物联网应用程序和WSN铺平了道路.
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