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Power transfer for a running automobile

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2 Author(s)
Hanazawa, M. ; Toyota Central R & D Labs., Inc., Nagakute, Japan ; Ohira, T.

We herein propose power transfer through a capacitor composed of a steel belt in a tire and a metal plate attached to the road. In the present study, metal plates were arranged above and below a tire, and the complex impedance between these plates was measured. A matching circuit bridging the large impedance gap between the tire and 50-ohm lines was designed, and the transmission property was simulated. The measurement revealed that the real and imaginary parts of the complex impedance at 1 MHz were approximately 700 ohm and -2,000 ohm, respectively. For the matching, S21 was confirmed to be approximately -0.1 dB.

Published in:

Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications (IMWS), 2011 IEEE MTT-S International

Date of Conference:

12-13 May 2011