Tunable Liquid Dielectric Antenna

Abstract

This paper presents on modified the dielectric properties of liquid with varying salinity that was based on monopole structure. Dielectric resonator antennas (DRAs) can be made with a wide range of materials and allow many excitation methods [2]. Pure water does not work at high frequency (> 1 GHz) but increase in the salinity of water modifies the dielectric properties of water. Here proposed antenna shows that when the salinity increases in form of molar solution, the antenna was tuned at different frequency with increases return loss.