Impedance matching approach of L-section circuit with ohmic loss in reactive components

Satoshi Suzuki, Qiaowei Yuan, Qiang Chen

Research output: Contribution to journalArticlepeer-review


Impedance matching is very important to improve transmission efficiency not only for wireless communication but also for wireless power transfer. Lumped reactive elements are usually used in the impedance matching circuit. These reactive components such as inductors and capacitors have ohmic loss. An exact approach to design the lumped matching circuit at the presence of the ohmic loss is derived in this paper. Moreover, the condition for selection of impedance matching topology is deduced not only for lossless case but also for lossy case. Finally, the effect of the ohmic loss in the impedance matching circuit on the transmission efficiency is demonstrated quantitatively.

Original languageEnglish
Pages (from-to)64-74
Number of pages11
JournalWireless Power Transfer
Issue number1
Publication statusPublished - 2018 Mar 1


  • Impedance matching
  • Ohmic loss
  • Q factor
  • Transmission efficiency
  • Wireless Power Transfer

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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