利用35 GHz超材料开口环谐振器整流天线实现功率的无线传输
Wireless transfer of power by a 35-GHz metamaterial split-ring resonator rectenna
摘要：
报道了利用微型开口环谐振器整流天线通过高频微波辐射进行功率无线传输。通过将整流电路与开口环谐振器集成，将RF功率转换成DC功率。研究了在20-40 GHz频率范围内微波辐射的近场特性，最大功率水平为17 dBm。观察到的共振峰与模拟预测的共振峰相匹配。极化研究表明，当电场沿着具有间隙的开口环谐振器的边缘极化时，信号中的预期最大值和垂直取向的最小值。对于37.2GHz的频率，整流天线的效率在1%的量级。通过使用9个开口环谐振器的级联阵列，输出功率增加了20倍。
英文摘要：
Wireless transfer of power via high frequency microwave radiation using a miniature split ring resonator rectenna is reported. RF power is converted into DC power by integrating a rectification circuit with the split ring resonator. The near-field behavior of the rectenna is investigated with microwave radiation in the frequency range between 20-40 GHz with a maximum power level of 17 dBm. The observed resonance peaks match those predicted by simulation. Polarization studies show the expected maximum in signal when the electric field is polarized along the edge of the split ring resonator with the gap and minimum for perpendicular orientation. The efficiency of the rectenna is on the order of 1% for a frequency of 37.2 GHz. By using a cascading array of 9 split ring resonators the output power was increased by a factor of 20.
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