Recently, the interest in wireless power transfer (WPT) has been significantly increased due to its attractive applications. The power transfer efficiency and communication range of most of existing WPT systems are still limited which is due to many technical challenges and regulations limitations. This requires more research and technical efforts to overcome the current limitations and make WPT systems much more efficient and widely used. This paper aims at reviewing recent advances and research progress in the area of WPT for the purposes of addressing current challenges and future research directions. To obtain these purposes, an introduction to WPT is provided. Also, main research themes of WPT in free space and lossy media are discussed. Additionally, the benefits of using split ring resonators on WPT in conducting lossy media are investigated. This will be very helpful to boost WPT in lossy media and inspire more optimized structures for further improvement.
Key words: ICPT, MPT, PTE, UWICPT, WPT.
|
