Development of Microstrip Patch Antenna Sensing System for Salinity and Sugar Detection in Water
نویسندگان
چکیده
Microstrip patch antenna is a flat shape, light weight and low cost antenna that used to receive and transmit electromagnetic wave. This paper describes the design and development of a microstrip patch antenna for salinity and sugar detection. The microstrip antenna was designed and fabricated using Computer Simulation Technology (CST) Microwave Studio and Taconic TLY-5 substrate, respectively. This sensor is operate in the Industrial, Scientific and Medical (ISM) radio band, i.e. 2.45GHz. Dimension and shape of the patch antenna as well as location of feed point is analyzed. There are three types of microstrip patch antennas are developed in this work, i.e. rectangular, circular and square patch microstrip antennas. These microstrip patch antennas were used to measure the salt and sugar content in water. In addition, reflection coefficient and Q-factor were discussed too in this paper. Different amount of salt or sugar that present in water will exhibit different dielectric properties, and in turn change its reflection coefficient and Qfactor. Index Term— microstrip patch antenna; sugar; salinity; reflection coefficient; dielectric properties; Q-factor.
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