Electric field in CST

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I have measure electric field at a point in CST MWS software using TLM and transient solvers.

I got ripple in the pattern rather than smooth pattern. But the pattern is correct atleast. Please help me to get smooth pattern. i have to change in the mesh settings or any thing else?

You can try with a higher mesh, or a better accuracy.
Do you get any error messages?

I have tried by giving different values for mesh. It takes more time but no improvement in the pattern.

You should increase "number of pulses" in transient solver settings in specials tab to decrease ripples on the results. But remember this, increasing "number of pulses" will increase solving time in transient solver. I had my problem just like yours and That's the answer for this.

Have you tried a better accuracy?
Do you get a warning?