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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >A wide input power range rectenna for energy harvesting and wireless power transfer applications
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A wide input power range rectenna for energy harvesting and wireless power transfer applications

机译：用于能量收集和无线电源传输应用的宽输入功率范围indenna

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摘要

This article describes a novel rectifying-antenna design with extended inputpower range operating at 2.4 GHz for both ambient wireless energy harvestingand wireless power transmission (WPT) systems. The rectenna consists of a2 × 2 fractal antenna array and a rectifier circuit with a high-power conversionefficiency (PCE) in a wide input power range. This circuit contains two conversionstages based on two different Schottky diodes, and a third stage that dissipatesthe unconverted input power, which can disturb the harvesting process.These three stages are controlled by a power management block based on circulators,that direct the input power to the adequate stage according to itspower range. A prototype of the proposed harvesting system is fabricated andexperimentally validated. The measurement results confirm the wide inputpower range behavior of the designed rectenna with a relatively constant andhigh PCE (between 58% and 67%) for a power density ranging from 4 to252 μW/cm~2. The proposed solution can be successfully used for both ambientenergy harvesting and WPT systems.
机译：本文介绍了一种具有扩展输入的新型整流天线设计功率范围在2.4 GHz工作，适用于环境无线能量收集和无线电力传输（WPT）系统。 indenna由一个组成2×2分形天线阵列和具有大功率转换的整流电路宽输入功率范围内的效率（PCE）。该电路包含两个转换基于两个不同的肖特基二极管的阶段，以及散发的第三阶段未转换的输入功率，可以干扰收获过程。这三个阶段由基于循环器的电源管理块控制，根据其引导输入电源直接到足够的阶段功率范围。制造了所提出的收获系统的原型和实验验证。测量结果证实了广泛的输入所设计的预终体的功率范围行为，具有相对常数和高PCE（58％和67％之间），功率密度为4到4252μw/ cm〜2。所提出的解决方案可以成功地用于周围环境能量收集和WPT系统。

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