TY - GEN
T1 - Multilayer composite for below ground embedded sensor networking
AU - Jeong, Seongheon
AU - Yang, Chin Lung
AU - Courter, John R.
AU - Kim, Seung Il
AU - Byron Pipes, R.
AU - Chappell, William J.
PY - 2008
Y1 - 2008
N2 - Sewage systems are being retrofit with sensor networks to reduce their deleterious effects on human health and the environment. To implement the sensor networks a conventional cast-iron manhole cover is replaced with a robust composite manhole cover antenna. The difficulties in designing the antenna in a manhole cover are that the antenna must radiate in a harsh environment, at ground level, and maintain low-profile. The cover must maintain structural loads as large as 2,000 pounds, due to the presence of traffic, while simultaneously being relatively *transparent* for RF radiation from below ground sensors. To verify a prototype, a simple composite sandwich structure is designed, fabricated, and integrated with an aluminum slot antenna. This composite manhole cover antenna is analyzed with full-wave simulations and measured in an anechoic chamber. The simulated results show a good agreement with measured results. The magnetically center-fed slot antenna shows 2.13 dB of measured gain within the fiberglass sandwich structure.
AB - Sewage systems are being retrofit with sensor networks to reduce their deleterious effects on human health and the environment. To implement the sensor networks a conventional cast-iron manhole cover is replaced with a robust composite manhole cover antenna. The difficulties in designing the antenna in a manhole cover are that the antenna must radiate in a harsh environment, at ground level, and maintain low-profile. The cover must maintain structural loads as large as 2,000 pounds, due to the presence of traffic, while simultaneously being relatively *transparent* for RF radiation from below ground sensors. To verify a prototype, a simple composite sandwich structure is designed, fabricated, and integrated with an aluminum slot antenna. This composite manhole cover antenna is analyzed with full-wave simulations and measured in an anechoic chamber. The simulated results show a good agreement with measured results. The magnetically center-fed slot antenna shows 2.13 dB of measured gain within the fiberglass sandwich structure.
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U2 - 10.1109/APS.2008.4619245
DO - 10.1109/APS.2008.4619245
M3 - Conference contribution
AN - SCOPUS:55649090863
SN - 9781424420421
T3 - 2008 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI
BT - 2008 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI
PB - IEEE Computer Society
T2 - 2008 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI
Y2 - 5 July 2008 through 12 July 2008
ER -