宽带射频整流器的设计,用于增强生物医学植入物中的无线电力传输,支持白空间WiFi和LTE频段
Usman Yau1, Jun Jiat Tiang2, Mohamed Karim Azizi3,4
1Centre for Wireless Technology, CoE for Intelligent Network, Faculty of Artificial Intelligence and Engineering, Multimedia University, Persiaran Multimedia, 63100, Cyberjaya, Selangor, Malaysia.
Scientific reports
|November 25, 2025
概括
本研究介绍了一种用于Wi-Fi和LTE系统的新型高效率宽带射频校正器. 它实现了66.25%的峰值功率转换效率,在各种输入功率级别上展示了有效的性能.
科学领域:
- 电气工程 电气工程
- 无线电频率 (RF) 工程
背景情况:
- 高效的射频-直流转换对于无线电力传输和能源采集系统至关重要.
- 现有的整流器经常面临带宽和效率的限制,特别是在较低的输入功率水平.
研究的目的:
- 为高效率的宽带射频校正器引入一种新的设计方法.
- 为了优化整流器在2.37-2.70 GHz频段的峰值性能,适合Wi-Fi和LTE应用.
主要方法:
- 采用了双分支电池配置,配有L-shunt匹配网络,辐射支柱和串行电感器.
- 实施了一种序列匹配技术,以实现宽阻抗带宽.
- 整流器是在一个具有紧足迹的RT/Duroid基板上制造的.
主要成果:
- 整流器在5dBm输入功率下实现了66.25%的峰值功率转换效率 (PCE).
- 射频到直流的转换效率在-20 dBm输入功率下从11.50%到13.5%不等.
- 该设计在2.37-2.70 GHz频段的模拟和测量结果中都表现出良好的性能.
结论:
- 拟议的射频校正器设计提供高效率和宽带操作,使其适合白空间Wi-Fi和LTE系统.
- 紧的尺寸和可靠的性能在各种输入功率水平的频谱突出其无线功率传输 (WPT) 系统的潜力,包括生物医学植入物.
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