Title :
A Novel Radiator for a 2.4 GHz Wireless Unit to Monitor Rail Stress and Strain
Author :
Browne, Kenneth E. ; Chen, Chi-Chih ; Volakis, John L.
Author_Institution :
Ohio State Univ., Columbus
fDate :
3/1/2008 12:00:00 AM
Abstract :
A novel mobile antenna structure is presented to relay stress and strain data on railroad tracks. The antenna structure is a unique design employing dual probe-fed radiating cavities integrated with a Zigbee IEEE 802.15.4 wireless transceiver. This structure is mounted against the rail web and has a compact design to ensure survivability. A dielectric filler is employed inside each radiating cavity to minimize cavity width and protect the integrity of the mobile antenna structure. Measurements are given for a fabricated prototype to verify simulated performance characteristics.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; mobile antennas; railway communication; stress analysis; transceivers; Zigbee IEEE 802.15.4 wireless transceiver; dielectric filler; dual probe-fed radiating cavities; frequency 2.4 GHz; mobile antenna structure; rail stress monitoring; railroad tracks; strain monitoring; Capacitive sensors; Dielectrics; Mobile antennas; Monitoring; Protection; Rails; Relays; Stress; Transceivers; ZigBee; IEEE 802.15.4; ISM 2.4 GHz band; Zigbee transceiver; cavity radiator; rail stress; wireless sensor;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2008.916976
