CAJ | 학술논문

分析了无限长均匀单轴双各向异性圆柱体对平面入射波的电磁散射特性。从无源麦克斯韦方程组出发，分别导出电场和磁场满足的方程，采用傅里叶变换来求其解。基于对未知角普幅度的傅里叶展开和本征平面波的表达式，引入圆柱波矢量函数，将圆柱体内场表达为贝塞尔函数级数的积分方程。单轴双各向异性柱体位于自由空间中受均匀平面波的垂直入射可极化为TE波或TM波，由于电磁场在圆柱体表面上连续，建立平面波垂直入射的边界条件。利用贝塞尔函数的大宗量渐进展开式导出其雷达散射宽度的表达式，通过FORTRAN编程验证与现有文献数值结果吻合较好。
분석료무한장균균단축쌍각향이성원주체대평면입사파적전자산사특성。종무원맥극사위방정조출발，분별도출전장화자장만족적방정，채용부리협변환래구기해。기우대미지각보폭도적부리협전개화본정평면파적표체식，인입원주파시량함수，장원주체내장표체위패새이함수급수적적분방정。단축쌍각향이성주체위우자유공간중수균균평면파적수직입사가겁화위TE파혹TM파，유우전자장재원주체표면상련속，건립평면파수직입사적변계조건。이용패새이함수적대종량점진전개식도출기뢰체산사관도적표체식，통과FORTRAN편정험증여현유문헌수치결과문합교호。
Study on scattering by an infinitely homogeneous uniaxial bianisotropic circular cylinder .The electromagnetic wave equation is solved by using the source-free Maxwell's equations in the Fourier transformation domain .Based on the eigen plane wave spectrum representation of the field and the Fourier expansion for the unknown angular spectrum amplitude , introduce the cylindrical vector-wave-function , the internal field is expressed as an integral equation in terms of Bessel functions .For the normal incidence in free space the electromagnetic change to TE and TM polarizations .For the continuity of the tangential electric and magnetic field at border to formulate the boundary value problem by a plane wave normally incident .The radar cross section is given after using the large argument approximation of Bessel function .By making FORTRAN program confirming the results is in agreement with current methods .