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

Yousaf, A.; Boccard, J. M.; Khan, F. A.; Reindl, L. M.

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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Yousaf, A. / Boccard, J. M. / Khan, F. A. / et al: Near-field wireless sensing of single and multiple open-ended micro coils. 2013. Copernicus Publications.

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