忻州师范学院电子系
纸质出版:2024
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尉易庆, 杨慧敏. 基于电磁超材料的射频能量收集器设计及性能验证[J]. 传感器与微系统, 2024,(1):91-94+98.
尉易庆, 杨慧敏. 基于电磁超材料的射频能量收集器设计及性能验证[J]. 传感器与微系统, 2024,(1):91-94+98. DOI: 10.13873/J.1000-9787(2024)01-0091-04.
设计了一种用于2.45 GHz射频(RF)能量收集的超材料能量收集器,为典型的三明治结构,超材料谐振结构为互补开口谐振环(CSRR)
介质层选用具有低损耗角正切特性的F4B材质。通过在CSRR的开口处打孔并加载负载电阻,实现了WiFi频段电磁(EM)能量的完美吸收。通过对收集器输入阻抗及多物理场分布的仿真,从不同方面分析了超材料能量收集器的吸波机理。样品的测试结果表明:所设计的超材料能量收集器能够在2.5 GHz达到89.3%的能量收集效率。验证了所设计的超材料谐振结构用于WiFi能量收集的可行性,可用于低功耗消费电子、医疗植入设备、物联网传感器节点等的主要或供电辅助来源。
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