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Renormalizing changed all characteristics, but not solved the problem.
I will clarify requirements for antenna:
1) stable characteristics on range 3-11 GHz
2) re impedance = ~50 Ohm; im impedance = ~0 Ohm;
3) stable VSWR less then 10 in dB
Below file with my antenna and screens of VSWR...
Need help with Vivaldi antenna in hfss simulation
I am asking for help.
I have made a vivaldi antenna simulation in HFSS v12.0.1
But I have troubles with waveport, and because of this very bad VSWR, S11, real and im impedance parameters...
How should I change my waveport to get normal...
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