Power Characteristics of Wireless Charging for Sensor Networks in Tunnels
Abstract: In order to generate
wireless microwave power charging technology in coal mine tunnels, it is
necessary to know the power characteristics of wireless electromagnetic wave
along the tunnel walls. In this paper, the experimental results of narrowband
wireless electromagnetic wave propagation measurements are presented, and a
statistical model of the power characteristics at 2.4 GHz in real rectangular
mine tunnels is proposed. Two standard half-wave dipole antennas were used to
perform the field experiments in tunnels with different wall materials. A
10-meter wireless charging distance belongs to the free-space propagation zone.
The path loss exponents rely heavily on the location of the receiver and
antenna polarizations. To obtain more power, the locations of the receiver
should match the corresponding polarizations.
Author: Xiaoming Liu, Enjie
Ding, Duan Zhao, Youfang Yang
Journal Code: jptkomputergg150189
Artikel Terkait :
Jp Teknik Komputer gg 2015
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