A High Efficiency Rectenna Element usingE-pHEMT Technology

A High Efficiency Rectenna Element usingE-pHEMT Technology
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采用E-pHEMT技术的高效整流天线元件

DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
A. Tazón
A. Tazón
中科院分区：
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文献类型：
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作者：
C. Gómez;J. A. García;A. Mediavilla;A. Tazón

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本文介绍了一种高效整流 基于新型E-pHEMT的整流天线元件 探测器，建议。微正阈值电压 在这项技术中，允许其用于电阻检测器 而不施加辅助栅极偏压。基于 适当选择直流负载电阻，以及 漏极和栅极阻抗条件下，RF到 DC转换过程减少。高增益孔径 最后设计了耦合贴片，保证了最佳的 基波和二次谐波的阻抗值。 使用47的整流天线负载，总体测量85.4% 实现了效率。
In this paper, a high-efficiency rectifying antenna (rectenna) element, based on a novel E-pHEMT detector, is proposed. The slightly positive threshold voltage in this technology, allows its use on resistive detectors without applying an auxiliary gate bias. Based on an adequate selection of the DC load resistor, as well as the drain and gate impedance conditions, the losses on the RF to DC conversion process are reduced. A high gain aperture coupled patch is finally designed, assuring optimum impedance values at the fundamental and second harmonic. Using a rectenna loading of 47 , a 85.4% measured overall efficiency is achieved.