Development of circular microstrip patch antenna array for rectenna application

This paper presents a rectenna system design using a microstrip patch array antenna and two microstrip line filters to operate at 2.41GHz. The aim of this antenna array construction is to obtain high directivity. The element of the array is the circular microstrip patch and each element is fed by inset feed. The size and feed position of the single microstrip patch is determined through the theoretical design and HFSS11 software simulation. Based on which an array of two elements with equal sizes and equal spacing is designed on a planar substrate. The two microstrip line filters are also designed using HFSS11. The simulation results in this paper can be used as design reference for the practical design of the rectenna.