一个多频段SSr二极管射频整流器,用于生物医学无线应用,具有改进的频率比
Surajo Muhammad1,2, Mohamed Ibrahim Waly3,4, Nasser Ali AlJarallah5,6
1Faculty of Engineering, Centre For Wireless Technology (CWT), Multimedia University, Cyberjaya, 63100, Malaysia.
Scientific reports
|August 15, 2023
概括
本研究介绍了一种简化的四带植入式射频整流器,能够从多个射频信号中收集能量. 这种新的设计实现了高射频到直流功率转换效率,证明了为生物医学植入式设备供电的潜力.
科学领域:
- 电气工程 电气工程
- 生物医学工程 生物医学工程
- 无线电频率工程 无线电频率工程
背景情况:
- 生物医学植入式设备 (BID) 需要高效的电源.
- 现有的射频能量采集解决方案通常面临带宽和效率的限制.
- 对于BIDs来说,需要紧的多频段整流器.
研究的目的:
- 开发一个简化的,四带植入式射频整流器.
- 为了提高RF能量收获能力,用于低功耗的生物医学应用.
- 调查用于为BID供电的多频段直角天线的性能.
主要方法:
- 射频调整器单元的顺序匹配到四个操作频率.
- 在FR-4 PCB上设计和制造一个紧的射频校正器.
- 在各种射频频率和功率级别下测试直角天线的性能.
主要成果:
- 射频整流器在多个频段运行,包括1.830 GHz,2.100 GHz和Wi-Fi频段 (2.382.68 GHz).
- 在2.100GHz的输入功率为2dBm时,达到73.00%的最大RF-to-DC功率转换效率 (PCE).
- 在0.440V的输出电压下证明了户外性能,能够驱动低功耗评估模块.
结论:
- 拟议的四带射频整流器提供了简化的电路复杂性和有效的频域利用.
- 该设计显示了通过高效的环境射频能量采集来为各种低功耗生物医疗植入式设备提供动力的潜力.
- 多频段操作和良好的阻抗带宽有助于rectenna的实际应用.
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