Time reversed electromagnetic wave propagation as a novel method of wireless power transfer
| Autor: | Tyler Grover, Frank Cangialosi, Patrick Healey, Tim Furman, Andrew Simon, Steven M. Anlage |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Wavefront business.industry Wave propagation 020206 networking & telecommunications 02 engineering and technology Wave equation 01 natural sciences Signal Time reversal signal processing Optics Surface wave 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Wireless power transfer Antenna (radio) 010306 general physics business |
| Zdroj: | 2016 IEEE Wireless Power Transfer Conference (WPTC). |
| DOI: | 10.1109/wpt.2016.7498832 |
| Popis: | We investigate the application of time reversed electromagnetic wave propagation to transmit energy to a moving target in a reverberant environment. “Time reversal” is a signal focusing method that exploits the time reversal invariance of the lossless wave equation to focus signals on a small region inside a complex scattering environment. In this work, we explore the properties of time reversed microwave pulses in a low-loss ray-chaotic chamber. We measure the spatial profile of the collapsing wavefront around the target antenna, and demonstrate that time reversal can be used to transfer energy to a receiver in motion. We discuss the results of these experiments, and explore their implications for a wireless power transmission system based on time reversal. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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