菜鸟求助请各位大牛们讨论帮忙

           刚刚接触Feko，有一个这样的问题。一个半球，用90-100GHz的光照射平坦的面（也就是平面），频率间隔为100MHz，画其RCS曲线。
          建模已经完成，之后的网格剖分和设置就不怎么会了请各位帮忙，谢谢大家。
         

先看看它的帮助文档

A. RCS, plane wave Part 請練習 3, 4
B. PO/UTD 請練習 16
A. RCS Part 請練習
3 RCS of a thin dielectric sheet
Keywords: RCS, thin dielectric sheet (TDS), plane wave
The electrically thin dielectric plate, modelled with the thin dielectric sheet approximation,
is illuminated by an incident plane wave such that the bistatic radar cross section
may be calculated at 100 MHz.
4 RCS and near field of a dielectric sphere
Keywords: dielectric, plane wave, sphere, bistatic RCS, monostatic RCS
A lossless dielectric sphere with radius of 1 m and relative permittivity equal to 36 is
excited by means of an incident plane wave. The wavelength of the incident field is 20 m
in free space (3.33 m in the dielectric). The near field inside and outside the sphere as
well as the RCS of the sphere is calculated and compared to theoretical results.
The calculation is done using the surface equivalence principal
16 Dipole in front of a plate modelled using first UTD and then PO
Keywords: UTD, PO, dipole, radiation pattern, far field, electrically large plate
A dipole in front of an electrically large square plate is considered. In the first case,
the dipole is solved with the MOM and the plate with the UTD. The plate is then
modified so that it can be solved with PO. The MoM/UTD and MoM/PO hybrid solutions
demonstrated here are faster and require less resources than the full MoM solution.