用于射频能量收集的宽带CP偶极子整流天线

2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) Pub Date : 2019-07-01 DOI:10.1109/CSQRWC.2019.8799279

Chengfang Guo, Wenmei Zhang

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引用次数: 2

摘要

研究了一种用于射频能量采集的新型宽带圆极化偶极子整流天线。提出了一种由接收天线和整流器组成的简易整流天线。所述接收天线具有低轮廓结构，其在单一基板上蚀刻，其上下贴片上均有金属。利用对称存根形成的偏心馈电(OCFD)偶极子，提高了带宽。通过仿真，阻抗带宽为55.17% (3.36 ~ 5.92 GHz)， 3db轴比(AR)带宽为27.94% (3.88 ~ 5.14 GHz)。整流器结构简单，可将射频能量转换为直流电，效率最高可达48.9%。

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A Wideband CP Dipole Rectenna for RF Energy Harvesting

A new wideband circularly polarized (CP) dipole rectenna is investigated for RF energy harvesting. We proposed a simple rectenna, which is composed of receiving antenna and rectifier. The receiving antenna has low profie structure, which is etched on a single substrate with metals on the upper and lower patches. By using off-center-fed (OCFD) dipole formed by symmetrical stubs, the bandwidth is improved. By simulating, the impedance bandwidth is 55.17% (3.36-5.92 GHz) and the bandwidth of 3-dB axial ratio(AR) is 27.94% (3.88-5.14 GHz). With simple structure of rectifier, the rectenna can afford to convert RF energy to DC with a maximum efficiency of 48.9%.

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来源期刊

2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)

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