微型EBG天线用于自动供电物联网和医疗传感器中的高效5.8 GHz射频能量采集
Yahya Albaihani1, Rizwan Akram1, Abdullah M Almohaimeed1
1Department of Electrical Engineering, College of Engineering, Qassim University, Buraydah 51452, Saudi Arabia.
Sensors (Basel, Switzerland)
|August 14, 2025
概括
本研究介绍了一种紧的微条形天线,具有电磁带间隙 (EBG) 结构,用于高效的无线电频率能量采集. 该设计增强了5.8GHzISM频段中无电池物联网 (IoT) 设备的功率.
科学领域:
- 电磁工程 电磁工程 电磁工程
- 天线设计天线设计
- 无线电力传输是无线电力传输.
背景情况:
- 物联网 (IoT) 设备需要高效的电源解决方案.
- 收获无线电频率能量是无电池运行的关键技术.
- 紧,高性能天线对于无线系统至关重要.
研究的目的:
- 为了呈现一个紧的,高效的微条形天线用于收获射频能量.
- 整合一个电磁带间隙 (EBG) 结构,以提高天线性能.
- 为了使无电池的物联网传感器和医疗设备能够在5.8GHzISM频段中供电.
主要方法:
- 用方形EBG结构设计和模拟一个微条形天线.
- 使用50 Ω插入料进行阻抗匹配.
- 通过模拟和测量进行绩效评估.
主要成果:
- 实现了紧的尺寸 (36 × 40 mm2) 与高增益 (7.91 dBi) 和效率 (95.5%).
- 获得了优异的阻抗匹配 (反射系数-27.9 dB,VSWR 1.08) 和188MHz的带宽.
- EBG结构有效地抑制了表面波和增强了收益.
结论:
- 拟议的天线为高性能无线系统提供了强大而有前途的解决方案.
- 该设计符合物联网应用中紧的尺寸和节能运行的要求.
- 模拟和测量结果之间的高相关性验证了天线设计.
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