Title :
Design and performance of an integrated antenna for a 433MHz car park monitoring system
Author :
Caso, R. ; Michel, A. ; Nepa, P. ; Manara, G. ; Massini, R.
Author_Institution :
Dept. of Inf. Eng., Univ. of Pisa, Pisa, Italy
Abstract :
A top-loaded vertical monopole antenna is designed to be integrated in a wireless sensor of a car park monitoring system operating at 433MHz. The final design came out from a careful analysis of the effects on the antenna input impedance of nearby elements (photovoltaic cells, battery, sensor cover, ultrasonic transducer). A performance comparison between the proposed vertically polarized antenna and a commercial ceramic antenna is presented, showing an average increase of the received power level at the reader of about 2.2dB, when measurements are performed on a distance range of 10-60m between the sensor and the reader antenna of the car park monitoring system.
Keywords :
UHF antennas; monopole antennas; radiotelemetry; antenna input impedance; car park monitoring system; commercial ceramic antenna; distance 10 m to 60 m; frequency 433 MHz; integrated antenna design; photovoltaic cells; reader antenna; sensor cover; top-loaded vertical monopole antenna; ultrasonic transducer; vertically polarized antenna; Antenna measurements; Ceramics; Monitoring; Receiving antennas; Wireless communication; Wireless sensor networks;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349377
