Powering LED from Wi-Fi: A qualitative assessment for rectenna design

2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA) Pub Date : 2014-12-01 DOI:10.1109/STA.2014.7086695

R. Ibrahim, Samuel Hong Siong Boon Mohd, H. Khir, M. A. Zakariya, H. Daud

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引用次数: 4

Abstract

With vast benefits across various market segments, active RFID tags have shown great potential in the healthcare sector. Battery replacement remains a deterrent towards mass implementation of active RFID tag technology. Within this context, rectenna architecture has been investigated as the RF power transfer mechanism for ultra low power on-body communication. A working prototype consisting of 7-stage Cockroft-Walton voltage multiplier integrated with band pass filter and lowpass filter has successfully been developed on 1.57 mm RT/Duroid 5880 laminate with the goal of prolonging battery lifespan. A qualitative assessment is proposed as means of evaluating rectenna performance with various antenna designs connected to optimized rectifier. Under non-controlled environment, powering an LED from a Wireless Access Point transmitter source can be used to gauge robustness of rectenna system. Antenna with 5 dBi gain was capable of powering LED at 10 cm distance from RF source.

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从Wi-Fi为LED供电:整流天线设计的定性评估

有源RFID标签在各个细分市场都具有巨大的优势，在医疗保健领域显示出巨大的潜力。电池更换仍然是大规模实施有源RFID标签技术的一个障碍。在此背景下，整流天线架构已被研究作为超低功耗体上通信的射频功率传输机制。在1.57 mm RT/Duroid 5880层压板上成功开发了一个由7级Cockroft-Walton电压乘法器集成带通滤波器和低通滤波器组成的工作原型，目的是延长电池寿命。提出了一种定性评价方法，用于评价与优化整流器连接的各种天线设计的整流性能。在非受控环境下，利用无线接入点发射源为LED供电可用于测量整流天线系统的鲁棒性。增益为5dbi的天线能够在距离射频源10cm处为LED供电。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)

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