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http://dx.doi.org/10.5515/KJKIEES.2013.24.7.671

Near-Field Analysis of Vehicle LF Antennas for Estimating the Reading Range of a Smart Key  

Kim, Heeyoung (School of Electronic and Electrical Engineering, Hongik University)
Byun, Gangil (School of Electronic and Electrical Engineering, Hongik University)
Seong, Jaeyong (School of Electronic and Electrical Engineering, Hongik University)
Jung, Hankil (School of Electronic and Electrical Engineering, Hongik University)
Choo, Hosung (School of Electronic and Electrical Engineering, Hongik University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.24, no.7, 2013 , pp. 671-677 More about this Journal
Abstract
In this paper, we propose a method of near-field analysis for vehicle LF antennas in order to estimate the accurate reading range of a smart key. The LF antenna consists of a ferrite core and a conducting wire which is coated with polyethylene for insulation, and it is mounted at the rear bumper frame of a commercial vehicle. The reading range of a smart key is measured at nine azimuthal directions distributed around the rear bumper, and then, the received power at each maximum reading range is measured by using a spectrum analyzer. The measurement shows that the maximum reading range exists between 1.38 m and 1.53 m, and the radiated power is between -83.6 dBmW and -75.0 dBmW. We further conducted EM simulation to estimate the reading range and the received power under the same condition that we applied for the measurement. The results demonstrate that an accurate reading range and received power can be achieved by simulation.
Keywords
Vehicle Antenna; LF Antenna Modeling; Near-Field;
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Times Cited By KSCI : 1  (Citation Analysis)
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