Open AccessThe aerospace wireless sensor network system compatible with microwave power transmission by time- and frequency-division operations
Author(s) -
Shizuo Yoshida,
Naoki Hasegawa,
Shigeo Kawasaki
Publication year - 2015
Publication title -
wireless power transfer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.275
H-Index - 11
ISSN - 2052-8418
DOI - 10.1017/wpt.2015.2
Subject(s) - amplifier , electrical engineering , electronic engineering , frequency divider , radio frequency , microwave transmission , rf power amplifier , microwave , engineering , telecommunications , power dividers and directional couplers , cmos
A novel wireless sensor network system with compatibility of microwave power transmission (MPT) using a Gallium Nitride (GaN) power amplifier has been fabricated and tested. The sensor node operates using electrical power supplied by the MPT system. Time- and frequency-division operations are proposed for the compatibility. Under the frequency-division operation, receiving signal strength indicator of −85 dBm and packet error rate of <1% were measured when the available DC power of a rectifier with 160 mW output power. Under 120-min measurement, sustainable power balance between radio-frequency–DC conversion and power consumption in stable operation of the sensor node was achieved.