Determination of GNSS Antenna phase center with Genetic Algorithm


Faculty of New Technologies, Iran University of Science and Technology, Tehran, Iran


In this paper, the antenna phase center and its variations are discussed by using simulation data and genetic algorithm. Since the antenna phase center­ cannot be considered as a detailed assessment of the antenna phase pattern, it is required to evaluate the phase center variations. In fact, phase center variation shows the phase center stability which is used in many applications such as precise positioning. The new proposed approach can be used to calculate the antenna phase center and phase center variations in three dimensions by using simulation data and genetic algorithm optimization. To show the proposed method ability, some simple GPS microstrip antennas are selected and simulated to compare their phase patterns by phase center variation computation with the proposed method. Finally, the results are validated by using HFSS software.