Fig. 1. Schematic diagram of two Gaussian beams incident on a UAC sphere along arbitrary directions(a) and coordinate rotation structure diagram(b)

Fig. 2. Results reduced to the case of a uniaxial anisotropic particle compared with those by literature [21]. (a) E plane; (b) H plane

Fig. 3. Influence of the incident angle on RCS of UAC sphere incident by dual back-propagating Gaussian beams. (a) E plane; (b) H plane

Fig. 4. Influence of the waist width on RCS of UAC sphere incident by dual back-propagating Gaussian beams. (a) E plane; (b) H plane

Fig. 5. Influence of the inner radius on RCS of UAC sphere incident by dual back-propagating Gaussian beams in E plane

Fig. 6. Influence of the coating thickness on RCS of UAC sphere incident by dual back-propagating Gaussian beams in E plane

Fig. 7. Influence of the electric anisotropy ratio eAe on RCS of UAC sphere incident by dual back-propagating Gaussian beams. (a) E plane; (b) H plane

Fig. 8. Influence of the magnetic anisotropy ratio eBe on RCS of coated sphere incident by dual back-propagating Gaussian beams. (a) E plane; (b) H plane