電波吸収体を装着したヘリコプタのロータブレードに関する研究

抄録

In this paper, we discuss the reduction of RCS (Radar Cross Section) of helicopter rotorblade whose front edge is coated with thin microwave absorber, both theoretically and experimentaly. As a result, it is found that measured absorption values are 4-13dB at 15GHz and measured values show good agreement with those of calculation. These results are applicable to the design and manufacturing of stealth rotorblade having the cylinder-type absorber.