Open AccessFrequency‐agile load‐modulated magnetic resonance wireless power transfer system for reliable near‐field in‐band signalling
Author(s) -
Kim N.Y.,
Yoon S.W.,
Kim C.W.
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2013.2724
Subject(s) - wireless power transfer , wireless , agile software development , electrical engineering , power (physics) , field (mathematics) , electronic engineering , engineering , computer science , physics , telecommunications , mathematics , software engineering , quantum mechanics , pure mathematics
A frequency‐agile load modulation scheme is proposed for reliable near‐field magnetic communication with a magnetic resonance wireless power transfer system. A working prototype of the system to realise concurrent power and data transfer in the high‐frequency band has been fabricated to verify that demodulation of the load modulation signal state detected on the transmitter side is stable over the distance ranges covering the near‐field coupling region. This scheme can be a simple and efficient solution against potential issues such as non‐communication and envelope inversion arising from strong magnetic resonance coupling.