Figure 17 shows the geometry of a metallic cylindrical rod with rounded (hemispherical) ends. The total end-to-end length of the rod is 1.5λ<sub>0</sub> and its diameter is 0.4λ<sub>0</sub>. This structure was simulated using [[EM.Cube]]'s Surface MoM and FDTD simulators. Figures 18 and 19 show the triangular surface mesh and the FDTD mesh of the same structure, respectively. For the surface mesh generation, a mesh density of 225 samples/λ<sub>0</sub><sup>2</sup> was used, while the FDTD module used a mesh density of 40 cells/λ<sub>0</sub> along each linear dimension to better capture the curved surface of the target.
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[[Image:ART RCS15.png|thumb|left|480px|Figure 15: Variation of normalized bistatic RCS (σ/λ<sup>2</sup>) of a large metallic sphere of radius a (k<sub>0</sub>a = 10) with elevation angle θ for the case of an incident TEz (horizontal) polarization, solid red line: [[EM.Libera]] results, solid blue line: [[EM.Illumina]] (PO) results, magenta symbols: simulated data using a hybrid PO/MoM/Fock method presented by Ref. [6].]]
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Figure 17: Geometry of a metallic cylindrical rod with rounded ends.
Figure 21: Variation of normalized bistatic RCS (σ/λ<sup>2</sup>) of a metallic cylindrical rod with rounded ends as a function of elevation angle θ in ZX plane (φ = 0º), solid red line: [[EM.Libera]] results, solid blue line: [[EM.Tempo]](FDTD) results, red symbols: simulated data using a BOR-MoM method presented by Ref. [7].
== Scattering from a Metal Cone with Spherical Caps ==