滤波器导电损耗626 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL 44, NO. 4, APRIL 1996 REFERENCES [ 11 J. H. ANGLE 0 IN RADIANS Fig. 2. Distant scattering pattern of a homogeneous cylindrical shell with an inhomogeneous patch. - Method presented here * * * * Gaussian to = elimination method dielectric constant = 6.0 + 3 when 4 = 3.0 elsewhere; mean radius = 1.0 A; thickness = 0.05 X number of cells = 128. any case, when N is large and L 5 5; Richmond, “Scattering by a dielectric cylinder of arbitrary crosssection shape,” IEEE Trans. A……