Title :
Transient scattering analysis of an airfoil and its RCS reduction by partially RAM coating
Author :
Yan, Yubo ; Ge, Debiao ; Cui, Donghui ; Zhou, Qizhong
Author_Institution :
Dept. of Phys., Xidian Univ., Xi´´an, China
Abstract :
For an airfoil long enough compared with the wavelength, we may use a 2D FDTD to compute its scattered field in the near-region, and an indirect near-to-far field extrapolation to obtain its transient time response. The transient response waveform shows contributions coming from different scattering centers, corresponding to the lit region and shadow region, respectively. The radar absorbing material (RAM) coating around the front edge can depress the main contribution and reduce the RCS of the airfoil effectively.
Keywords :
electromagnetic wave scattering; extrapolation; finite difference time-domain analysis; radar cross-sections; transient analysis; 2D FDTD; RAM coating; RCS reduction; airfoil; front edge; indirect near-to-far field extrapolation; lit region; near-region; partially RAM coating; radar absorbing material coating; scattered field; scattering centers; shadow region; transient response waveform; transient scattering analysis; transient time response; Automotive components; Coatings; Extrapolation; Finite difference methods; Radar cross section; Radar scattering; Time domain analysis; Time factors; Transient analysis; Transient response;
Conference_Titel :
Antennas, Propagation and EM Theory, 2000. Proceedings. ISAPE 2000. 5th International Symposium on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6377-9
DOI :
10.1109/ISAPE.2000.894863
