7th International Electromagnetic Compatibility Conference, EMC Turkiye 2023, İstanbul, Turkey, 17 - 20 September 2023, (Full Text)
Finite Difference Time Domain (FDTD) method provides electric and magnetic fields in the near zone of the target scatterer. However, if the focus of the problem is the calculation of the radar cross section of the target scatterer, near field data is not sufficient, far field electric or magnetic field data is needed to be calculated. Near field data could be converted to far field data, but it becomes time consuming as the dimensions of the target scatterer get electrically larger. In this paper, near to far field transformation algorithm is accelerated with a parallelization method based on Graphics Processing Unit (GPU) in order to calculate radar cross section of electrically large targets fast and efficiently. The parallelized method is tested on a sphere model for the verification and time comparison is made between new and classical method for electrically large aircraft model.