一个使用Y形反射阵和直角天线的无线电力发射系统,实现了8.33%的功率传输效率.
Sunanda Roy1, Nabanita Saha1, Ifana Mahbub2
1The University of Texas at Dallas, 800 W Campbell Rd, Richardson, TX, 75080, USA.
Scientific reports
|May 21, 2025
概括
这项研究介绍了一种新的超宽带 (UWB) 无线电力传输系统,使用分布式发射器配置和循环极化多层反射阵列天线. 该系统实现了更高的效率,并展示了长距离电力传输的潜力.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 无线通信无线通信
背景情况:
- 无线功率传输 (WPT) 系统对于现代电子产品至关重要,但通常面临效率和范围的限制.
- 反射阵列天线提供光束形成能力,但UWB和WPT中的高收益实现具有挑战性.
研究的目的:
- 设计和实施一种使用超宽带 (UWB) 循环极化多层反射阵列天线 (RA) 的新型无线电力传输系统.
- 展示UWB WPT的第一个分布式发射器 (TX) 配置,旨在提高效率和多功能性.
- 在多TX WPT系统中,优化发射器间距以同时生成聚合光束.
主要方法:
- 为多层反射阵天线设计具有矩形中间层的新型"Y"形单元电池.
- 将一个喇天线集成为UWB反射阵列的输入,该反射阵列在5到10 GHz之间运行.
- 在分布式WPT系统中优化发射器间距,以实现聚焦的功率束.
主要成果:
- 反射阵线天线实现了21.261dBi的峰值实现增益,增益带宽 (BW) 为3dB,达到18.2%.
- 在发射天线 (TA) 操作中,获得了相当于63.11%的3dB轴比 (AR) BW.
- 在1.7米的距离下,功率传输效率达到5.03% (1 TX),8.33% (2 TX) 和8.11% (3 TX).
结论:
- 拟议的UWB循环极化多层反射阵列天线可以为WPT提供高效的光束形成.
- 分布式发射器配置提高了UWB无线电力传输的效率和多功能性.
- 该系统显示出作为高效的长距离无线电力传输应用的候选人显著的前景.
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By substituting the entire circuit with...
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