Two Sweeps for the Same Antenna

[KawtherHamad]

Hello,

I created an antenna, i defined a sweep that extended from 2 to 12 GHz, i had a solution frequency of 7 GHz. Later i changed the sweep to be from 2 to 20, i changed the solution frequency to 11.5 GHz. I got very different results in the two cases. Can any one help me why is that. Please i need help.


Thank you
Kawther Hamad,

 

[PlanarMetamaterials]

It probably depends on what software you're using, and what your convergence criteria are.

But in general, I would surmise that you're using an adaptive meshing process which is converging on one mode at 7 GHz, and another at 11.5 GHz. Pick the one that corresponds to your desired mode.

 

[pragash]

please explain more on what software you using to simulate and what difference in results you seen. is it S-parameter difference or gain and efficiency difference?