error on UTD simulation

xin chen_21419

Hi,

I'd like to simulate monopole on top of the car back with UTD solving algorithm, I changed solutions of 6 faces on the car back to UTD and CEM runs ok. However, I got the following error: ERROR 33229: Error while creating diffraction wedges, please verify the geometry. Can someone explain the error? 

Thanks

Jaehoon

Hello,

Error 33229 happens because the UTD meshes are made along the curved structures whose sizes are very small.

So the geometry should be fixed (for example, curved structurers changed to flat structures) to remove this error.

Additionally, please consider other EM solvers (Full-wave solver such as MoM or MLFMM) for the surfaces surrounding the antenna. 

Thank you.

 

 

Mel

Jaehoon Kim_22316 said:

Hello,

Error 33229 happens because the UTD meshes are made along the curved structures whose sizes are very small.

So the geometry should be fixed (for example, curved structurers changed to flat structures) to remove this error.

Additionally, please consider other EM solvers (Full-wave solver such as MoM or MLFMM) for the surfaces surrounding the antenna. 

Thank you.

 

 

Yes, the model is not really suited for the UTD. The UTD is for models of electrically huge size, i.e. several 10's of wavelengths and preferably where each detail in the geometry is also many wavelengths in size.

Changing all the surfaces back to the default solver and solving uses less than 4 GByte. 

The Example Guide A.3 Dipole in front of a plate is a good example of UTD usage.