Experimenting Waveforms and Efficiency in RF Power Transfer
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
Details
| Original language | English |
|---|---|
| Title of host publication | 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 |
| Publisher | IEEE |
| Pages | 1140-1143 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781728113098 |
| DOIs | |
| Publication status | Published - 1 Jun 2019 |
| Publication type | A4 Article in a conference publication |
| Event | IEEE MTT-S International Microwave Symposium - Boston, United States Duration: 2 Jun 2019 → 7 Jun 2019 |
Publication series
| Name | IEEE MTT-S International Microwave Symposium Digest |
|---|---|
| ISSN (Print) | 0149-645X |
Conference
| Conference | IEEE MTT-S International Microwave Symposium |
|---|---|
| Country | United States |
| City | Boston |
| Period | 2/06/19 → 7/06/19 |
Abstract
In this paper, we present a prototype test-bed for radio-frequency (RF) wireless power transfer (WPT) comprising a software-defined radio (SDR) transmitter and an energy harvesting receiver with a diode-based rectifier. The test-bed allows us to study the end-to-end efficiency of RF WPT when employing different co-phased multisine waveforms. In particular, we analyze the clipping and non-linear behaviours of the transmitter by experimentally evaluating how they affect the performance of waveforms. The experimental results indicate that transmitting impulse-like signals is actually not optimal for RF WPT in practice despite they would be ideal in terms of rectifier efficiency. Instead, the results highlight the superior performance of single-tone signals over co-phased multisines in terms of both end-to-end WPT efficiency and spectral purity.
ASJC Scopus subject areas
Keywords
- RF energy harvesting, Wireless power transfer