A Novel 24-GHz Miniaturized Flexible Rectifier for Wireless Energy Harvesting
A Novel 24-GHz Miniaturized Flexible Rectifier for Wireless Energy Harvesting
复制标题
用于无线能量收集的新型 24 GHz 小型柔性整流器
DOI：
10.1109/ri2c51727.2021.9559805
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Malik B
中科院分区：
文献类型：
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作者：
Malik B
在这篇研究文章中，设计和制造了一个小型化的灵活的整流器在24 GHz的无线电力传输到可穿戴设备。提出的电路由一个并联拓扑整流器，包括一个单一的短截线阻抗匹配网络。传统的PCB制造技术用于所提出的柔性整流器的原型。它的总占地面积为5.29平方厘米。所提出的整流器具有良好的折衷紧凑性和RF到DC转换效率之间。在非常薄的基板（130 µm）上的实现使其对于可穿戴设备应用来说非常耐用。实验结果表明，该整流器在24 GHz、17 dBm的输入功率下，最佳负载电阻为250 Ω时，输出直流电压为2.0V，RF-DC转换效率为23%。
In this research article, the design and fabrication of a miniaturized flexible rectifier at 24 GHz for wireless power transfer to wearables is presented. The proposed circuit consists of a shunt topology rectifier including a single stub impedance matching network. Conventional PCB fabrication technique is used for the prototyping of the proposed flexible rectifier. It has a total footprint of 5.29 cm2. The proposed rectifier exhibits a good trade-off between compactness and RF-to-DC conversion efficiency. The implementation on a very thin substrate (130 µm) makes it durable for wearables applications. Experimental results of the proposed rectifier show an output DC voltage of 2.0 V across an optimal load resistance of 250 Ω and measured RF-DC conversion efficiency of 23% for an input power of 17 dBm at 24 GHz.