利用能量收集装置分析射频到直流的转换效率

2019 International Conference on Recent Advances in Energy-efficient Computing and Communication (ICRAECC) Pub Date : 2019-03-01 DOI:10.1109/ICRAECC43874.2019.8995099

K. Rajeswari, S. S, H. S, Vivitha. C

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引用次数: 0

摘要

本文对QAM、PAM、BPSK、QPSK、FSK等多种调制方案的波形进行了传输，并分析了接收机射频对直流的效率。由工业制造的能量收集装置Powercast P2110B进行的射频到直流功率转换。选取915mhz频率进行射频功率转换效率的研究。各种调制方案的波形由通用软件无线电外设(USRP)设备产生，该设备通过以太网电缆与计算机连接。射频信号的产生采用LabVIEW软件控制。USRP模块产生的信号由Powercast P2110B能量采集器设备使用整流天线(八木天线)接收。通过对rf - dc变换器输出电压的监测，测量了平均输入功率电平对转换效率的影响。结果表明，通过选择合适的数字调制方案，可以提高射频变换器的效率。分析表明，与其他调制方案相比，选择BPSK传输方案可以更好地收集能量。

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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Analysis of the Efficiency of RF to DC Conversion using an Energy harvesting device

In this paper, the waveforms from various modulated schemes like QAM, PAM, BPSK, QPSK and FSK are transmitted and the efficiency of radio frequency (RF) to direct current (DC) at the receiver is analyzed. The RF to DC power conversion performed by the industrially manufactured energy harvesting device Powercast P2110B. A frequency 915 MHz is selected the study of RF power conversion efficiency. The waveforms various modulated schemes are generated by the Universal Software Radio Peripheral (USRP) device which is connected to computer via Ethernet cable. The generation of RF signals controlled using the LabVIEW software. The generated signals from the USRP module are received by the Powercast P2110B energy harvester device using rectenna (Yagi- antenna). The influence of average input power level on conversion efficiency is measured by monitoring the voltage the output of RF-to-DC converter. It is observed that by selecting proper digital modulation scheme, efficiency of RF-to- converter can be improved. The analysis shows that BPSK scheme chosen for transmission provides better energy harvesting as compared to other modulation schemes.

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2019 International Conference on Recent Advances in Energy-efficient Computing and Communication (ICRAECC)

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