Antenna characterization for wireless power-transmission system using near-field coupling

Qiang Chen, Kazuhiro Ozawa, Qiaowei Yuan, Kunio Sawaya

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)

Abstract

A fundamental study was focused on the investigation of wireless power transmission by near-field coupling from the view point of the antennas. Two types of antennas - dipole and loop antennas - were used as the transmitting antenna and the receiving antenna for electrical near-field coupling and for magnetic near-field coupling, respectively. The relationships among the power-transmission efficiency and the antennas' geometries, the antennas' electrical sizes, the impedance matching of the antennas, and the ohmic losses in the antennas and the impedance-matching circuits were clarified. Several observations were obtained, demonstrating the influence on the power-transmission efficiency of the impedance matching and ohmic losses in the wireless power-transmission system associated with near-field coupling.

Original languageEnglish
Article number6309161
Pages (from-to)108-116
Number of pages9
JournalIEEE Antennas and Propagation Magazine
Volume54
Issue number4
DOIs
Publication statusPublished - 2012

Keywords

  • Electromagnetic induction
  • antennas
  • electromagnetic coupling
  • impedance matching
  • power transmission
  • wireless power transfer
  • wireless power transmission

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Antenna characterization for wireless power-transmission system using near-field coupling'. Together they form a unique fingerprint.

Cite this