Title :
Embedded microstrip patch antenna for structural health monitoring applications
Author :
Rad, M. Fallah ; Shafai, L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB
Abstract :
In this paper, the gain and return loss of embedded antennas within concrete were investigated. It was shown that the antenna resonance can be made independent of the surrounding concrete medium by using a foam cover layer. Additionally, significant improvements in gain (up to 25 dB) were measured. Far field measurements taken on different days after the concrete pour showed gain increase of up to 7.5 dB as the concrete cured. This was attributed to the reduction in water content within the block.
Keywords :
concrete; condition monitoring; foams; microstrip antennas; permittivity; structural engineering; concrete; detrimental effects; embedded microstrip patch antenna; resonant frequency; structural health monitoring; Antenna measurements; Chemicals; Concrete; Loss measurement; Microstrip antennas; Monitoring; Patch antennas; Permittivity; Resonance; Resonant frequency;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619750
