抄録
In recent years, many kinds of radio communication systems are widely used. Radio wave disturbances caused by obstacles, on the propagation path, interfere with these communication systems. Disturbances of television broadcasting are problems, which affect us daily. The purpose of this research is to determine the characteristics of radio wave disturbances caused by airplanes. We calculated the near-field electromagnetic scattering with FDTD method, and evaluated the far-field using near-to-far-field transformation with equivalent electromagnetic current. The validity of this analysis was evaluated by comparing the analytical result with experimental result. The disturbance characteristics of the field below airplane are also examined.