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Andreas Christ

Researcher at ETH Zurich

Publications -  63
Citations -  3784

Andreas Christ is an academic researcher from ETH Zurich. The author has contributed to research in topics: Specific absorption rate & Finite-difference time-domain method. The author has an hindex of 27, co-authored 57 publications receiving 3394 citations. Previous affiliations of Andreas Christ include École Polytechnique Fédérale de Lausanne.

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Evaluation of Wireless Resonant Power Transfer Systems With Human Electromagnetic Exposure Limits

TL;DR: In this paper, an exposure assessment of a representative wireless power transfer system, under a limited set of operating conditions, is provided in order to estimate the maximum electromagnetic exposure levels, where the system operates at low MHz frequencies and achieves power transfer via near field coupling between two resonant coils located within a few meters of each other.
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The dependence of electromagnetic far-field absorption on body tissue composition in the frequency range from 300 MHz to 6 GHz

TL;DR: In this paper, the authors used the same methods considering different locations of the body and the respective variations of the tissue structures and dimensions, showing a significant increase of 2.2-4.7 dB of the peak spatial specific absorption rate (SAR) in comparison to the values assessed with standard liquids.
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Assessing Human Exposure to Electromagnetic Fields From Wireless Power Transmission Systems

TL;DR: The safety guidelines and the fundamental coupling mechanisms of the human body with the electromagnetic near fields of WPT are reviewed as well as the methodology and the instrumentation for the demonstration of the safety of such systems operating between 100 kHz and 50 MHz.