A Planar Microwave Applicator for Loamy Soil Treatment

3 D metallic horn antennas are designed at 2.45 GHz and used for soil treatment. In this research, Substrate Integrated Waveguide (SIW) based planar H plane horn antenna as an alternative to 3 D horn antenna is designed for agricultural soil treatment using microwaves. The antenna is designed at 2.45 GHz on single Roger 5880 substrate of thickness 1.575 mm. The suggested antenna is excited by coaxial feed. The antenna is integrated with an antipodal Vivaldi shape that provides the similar unidirectional radiation pattern similar to 3 D horn. So, this antenna can be considered as a better alternative to the 3 D horn antenna. The performance of the suggested antenna is revealed by observing the parameters like S11, far field radiation patterns and gain in far field. Also the s11 and rise in temperature of loamy soil is simulated in CST software and presented. At 27 watt of power temperature of soil is raised upto 86oC. This is the required temperature for soil treatment.