"CAD import module 1 Parasolid (. x_t，。 X_b) up to V20

SAT(。 Saturday. Sab) up to R 18.

Step (. Step,. stp) AP203，AP2 14

IGES(。 igs，。 Iges) up to 5.3 inches.

But there seems to be software on the internet. Just convert the format to dwg and let comsol recognize it.

The following two questions are so professional that I have never solved them. Usually, the RF module is only used to de-waveguide ~ I suggest you search the following keywords in Google, (comsol electromagnetic solenoid). I gave it a try and came up with some papers that can be downloaded directly with comsol. You can have a look. It should help.