多带微带回收网膜使用基于ZnO的平面Schottky二极管用于射频能量收集应用
Somaya I Kayed1, Dalia N Elsheakh2,3, Hesham A Mohamed3,4
1Obour High Institute for Engineering and Technology, Cairo 11828, Egypt.
Micromachines
|May 27, 2023
概括
这项研究引入了一种用于收获无线电频率能量的新型微带直角天线. 该设计实现了超宽带宽,并集成了Schottky二极管整流器,证明了无线信号的高效能量捕获.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 无线电力传输是无线电力传输.
背景情况:
- 收获无线电频率能量对于供电低功耗电子设备至关重要.
- 现有的rectenna设计往往面临带宽和效率的限制.
- 对于专用应用的紧型,高性能的rectennas的需求正在增长.
研究的目的:
- 设计和演示用于专用射频能量采集的单基板微带直角天线.
- 使用特定的几何修改来增强天线阻抗带宽.
- 集成一个高性能整流器电路,以实现高效的能量转换.
主要方法:
- 一个带有月球形切割和地面平面中的U形槽的微条形天线被设计为超宽带宽 (UWB).
- 实施了一个包含平面Ag/ZnO Schottky二极管的冲浪半波整流器 (SHWR) 电路.
- 对直视网的性能进行了模拟,并经过实验验证.
主要成果:
- UWB天线实现了从3GHz到25GHz的带宽 (-6 dB反射系数).
- 复频系统显示最大测量输出直流电压为600mV.
- 在3.5GHz和0dBm输入功率下,达到25%的峰值测量效率.
结论:
- 拟议的单基板微条纹直天线有效地在广泛的频率范围内收集射频能量.
- 几何学修改显著改善了天线的阻抗带宽.
- 集成的视网膜系统在专门的能源采集应用中显示出有前途的性能.
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