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Journal of Sensors and Sensor Systems An open-access peer-reviewed journal
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Volume 2, issue 1
J. Sens. Sens. Syst., 2, 35-43, 2013
https://doi.org/10.5194/jsss-2-35-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
J. Sens. Sens. Syst., 2, 35-43, 2013
https://doi.org/10.5194/jsss-2-35-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Regular research article 02 May 2013

Regular research article | 02 May 2013

Near-field wireless sensing of single and multiple open-ended micro coils

A. Yousaf, J. M. Boccard, F. A. Khan, and L. M. Reindl A. Yousaf et al.
  • Institute of Microsystems Engineering IMTEK Laboratory for Electrical Instrumentation University of Freiburg, Germany

Abstract. In this work we present near-field wireless sensing of single and multiple open-ended micro coils using an electrically small loop antenna. Wirelessly characterized parameters of open-ended micro coils include its resonance frequency, quality factor and inductance. Moreover a wireless frequency-dependent analytical model was developed. Micro coil inductance was extracted from the wirelessly measured signal using a constraint-based least-squares approach. Wireless measurements and analytical fit of micro coils are in strong agreement which validates the analytical model. Finite element method (FEM) simulations of the coupled system were done in COMSOL Multiphysics.

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