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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >A wideband rectifier array on dual-polarized differential-feed fractal slotted ground antenna for RF energy harvesting
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A wideband rectifier array on dual-polarized differential-feed fractal slotted ground antenna for RF energy harvesting

机译：双极化差分馈电分形缝隙接地天线上的宽带整流器阵列，用于RF能量收集

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摘要

This article reports a novel wideband rectenna for RF energy harvesting applications. A wideband fractal slotted ground antenna (SGA) is adopted. The operating frequency bands of the antenna are GSM, UMTS, Wi-Fi, and LTE2600/4G bands. The antenna is fed by a dual-polarized and differential-feed (DP-DF) microstrip lines disposed with an angle of 90 degrees each relative to the other. The feed lines are etched on the bottom side of the substrate and connected to an array of four wideband RF-to-DC rectifiers. A nonuniform transmission lines filter ensures wideband behavior for each rectifier. The rectenna performances are simulated and measured. The experiments show an output DC voltage of 1 V at a power density of 26.6 mu W/cm(2) over the frequency band of operation with a peak efficiency of 50%. The proposed rectenna is suitable for energy harvesting applications in urban environments.
机译：本文报道了一种用于射频能量收集应用的新型宽带整流天线。采用宽带分形缝隙接地天线（SGA）。天线的工作频带为GSM，UMTS，Wi-Fi和LTE2600 / 4G频带。天线由双极化和差分馈电（DP-DF）微带线馈电，微带线彼此之间呈90度角布置。馈线在基板的底部蚀刻，并连接到四个宽带RF-DC整流器的阵列。不均匀的传输线滤波器可确保每个整流器的宽带性能。模拟并测量了整流天线的性能。实验表明，在工作频段上，功率密度为26.6μW / cm（2）时，输出直流电压为1 V，峰值效率为50％。提出的整流天线适用于城市环境中的能量收集应用。

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