RCS of Metal Dielectric Joint on the Aircraft Cabin
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摘要: 提出了一种求解材料表面不连续目标的散射场的计算方法.这种表面不连续结构是由同厚度的金属半平板和介质半平板相互连接而形成.解决问题的基本思想是把总的散射场分成几个部分,包括直接散射、由平面波对末端开口的平行板波导入射所产生的耦合场以及它们的绕射和反射问题,并分别考虑其对总散射场的贡献.利用此结果,对飞行器座舱的金属-介质连接结构进行了计算,最终结果和文献结果符合的较好.Abstract: An analysis is presented which of the diffraction due to a material discontinuity formed by the junction of a thick dielectric half-plane with a metallic one having the same thickness.This is accomplished by considering the solution of several subproblems, including the direct diffraction and the coupling field due to a plane wave incident on a loaded open-ended parallel plate waveguide and their radiation and reflection.To take advantage of this idea for calculating the metal-dielectric joint on the aircraft cabin,the final result is in accord with the document-s.
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Key words:
- electromagnetic calculation /
- radar targets /
- electric wave scattering /
- joint
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[1] Volakis J L,Ricoy M A.H polarization difraction by a thick metal-dielectric join[J].IEEE Transactions on Antennas and Propagation,1989,37(11):1453~1462. [2]Ricoy P P M A,Volarkis J L.E-polarization diffraction by a thick metal-dielectric join[J].J Electromagn Waves Appel,1989,13(5):383~407. [3]汪茂光.几何绕射理论[M].第2版.西安:西安电子科技大学,1994. [4]克拉特 E F.雷达散射截面——预估、测量和减缩[M].北京:电子工业出版社,1988. -
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