EC Model for WPT and NFC Systems Interoperability Analysis

Richard Fischbacher, Lukas Gortschacher, Erich Merlin, Ulrich Muhlmann, Franz Amtmann, Peter Priller, Wolfgang Bosch, Jasmin Grosinger

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


In this paper, we present a novel equivalent circuit (EC) model that can be used to conduct a circuit-level interoperability analysis of a wireless power transfer (WPT) system and a near-field communication (NFC) system in close proximity to one another. Each system consists of two devices, which are respectively the WPT transmitter, WPT receiver, NFC reader, and NFC transponder (tag). Due to their close proximity, the WPT and the NFC systems interact with one another due to parasitic inductive and capacitive coupling between their coil antennas. Our investigations show that parasitic coupling causes the NFC system to produce a distorted communication signal. In particular, the detectability of the communication signal sent from the NFC tag to the NFC reader decreases rapidly, if the parasitic capacitive coupling between the coil antennas is too large. In addition, a custom-built prototype is presented here that can be used to take measurements and verify these results.

Original languageEnglish
Title of host publication2021 IEEE Radio and Wireless Symposium (RWS)
PublisherIEEE Computer Society
Number of pages4
ISBN (Electronic)9781728180625
Publication statusPublished - 17 Jan 2021
Event2021 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) - San Diego, Calif., Virtuell, United States
Duration: 17 Jan 202120 Jan 2021


Conference2021 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR)
Abbreviated titlePAWR 2021
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Communication

Fields of Expertise

  • Information, Communication & Computing


Dive into the research topics of 'EC Model for WPT and NFC Systems Interoperability Analysis'. Together they form a unique fingerprint.

Cite this