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Software-Defined Radio Test-Bed for Measuring Efficiency of Multisine Waveforms in RF Power Transfer

Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

Details

Original languageEnglish
Title of host publicationProceedings of XXXV Finnish URSI Convention on Radio Science
PublisherURSI
Number of pages4
Publication statusPublished - Oct 2019
Publication typeD3 Professional conference proceedings
EventFinnish URSI Convention on Radio Science -
Duration: 1 Jan 1900 → …

Conference

ConferenceFinnish URSI Convention on Radio Science
Period1/01/00 → …

Abstract

In this paper, we investigate the efficacy of multisine waveforms for radio-frequency (RF) wireless power transfer (WPT). We present a test-bed developed for experimentally assessing the end-to-end efficiency of waveforms in RF WPT. The test-bed primarily comprises a software-defined radio (SDR) transmitter and an energy harvesting receiver. We examine how the transmitter distorts digital multisine waveforms with high peak-to-average power ratio (PAPR), and measure the effect of varying the PAPR of clipped multisines on the end-to-end efficiency. The results reflect the poor performance of high-PAPR multisines in RF power transfer and hint towards low-PAPR signals being ideal for RF WPT.

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