摘要
The far field radiation characteristics of parabolic antenna damaged by fragments and shock wave were studied. The radiation characteristics of the antenna were modeled and analyzed using the moment method and the physical optics method based on surface current integration in FEKO software for high frequency electromagnetic field analysis; the laws of the electrical performanc changes were compared between the perfect reflector and the damaged reflector by the fragments with the different density and the pressure of the shock wave. The investigated results show that the antenna gain decreases gradually and the directional pattern is disordered with the increasing of fragment density in the range of 20~100 hole/m2; the gain decreases rapidly and the electric performances descends obviously with increasing of shock wave pressure.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 169-172 |
| 页数 | 4 |
| 期刊 | Binggong Xuebao/Acta Armamentarii |
| 卷 | 30 |
| 期 | SUPPL. 2 |
| 出版状态 | 已出版 - 12月 2009 |