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Abstract
The work presents an adaptive impedance matching system controlled by an artificial neural network (ANN) for wireless power transfer (WPT) based on near-field communication (NFC) technology operating at 13.56 MHz. The system consists of two magnetically coupled resonators (MCRs) to establish wireless power transfer between a transmitter (TX) and receiver (RX). The MCR coils are based on class 1 standard NFC coils. In the TX, an adaptive impedance matching network (AIMN) is controlled by an ANN to optimize power transfer for changing TX-RX positions. Simulation and measurement data for changing TX-RX positions were used to train, validate, and test the ANN. A first analysis shows an improvement in the system's power transfer efficiency for varying positions. However, the matching gain is not always overcoming the losses introduced by the AIMN, which then leads to bypassing the matching network. In contrast to previous work, this work analyses NFC-based WPT systems based on class 1 coils for the first time, giving valuable insight for future real-time adaptive NFC WPT systems.
Original language | English |
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Title of host publication | 2023 IEEE/MTT-S International Microwave Symposium - IMS 2023 |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 879-882 |
Number of pages | 4 |
ISBN (Electronic) | 9798350347647 |
DOIs | |
Publication status | Published - 2023 |
Event | 2023 IEEE/MTT-S International Microwave Symposium: IMS 2023 - San Diego, United States Duration: 11 Jun 2023 → 16 Jun 2023 https://ims-ieee.org/ |
Publication series
Name | IEEE MTT-S International Microwave Symposium Digest |
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Volume | 2023-June |
ISSN (Print) | 0149-645X |
Conference
Conference | 2023 IEEE/MTT-S International Microwave Symposium |
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Country/Territory | United States |
City | San Diego |
Period | 11/06/23 → 16/06/23 |
Internet address |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Fields of Expertise
- Information, Communication & Computing
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Dive into the research topics of 'Adaptive NFC WPT System Implementing Neural Network-Based Impedance Matching with Bypass Functionality'. Together they form a unique fingerprint.Projects
- 2 Active
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Wireless Power Transmission for Sustainable Electronics (WIPE)
Bösch, W., Görtschacher, L. J., Pachler, W., Freidl, P. F., Khan, H. N., Gadringer, M. E., Greiner, P., Gentili, F., Glanzer, C., Grosinger, J., Fischbacher, R. B., Deutschmann, B., Shetty, D. & Romero Lopera, J.
1/04/13 → …
Project: Research area
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Radio Frequency Identification (RFID) Technologies
Görtschacher, L. J., Pachler, W., Freidl, P. F., Bösch, W., Gadringer, M. E., Khan, H. N., Greiner, P., Glanzer, C., Grosinger, J., Fischbacher, R. B., Deutschmann, B., Romero Lopera, J. & Shetty, D.
1/04/13 → …
Project: Research area