Just started this thread for those who are (like me) interested in antenna simulation.
Would be nice to build up a knowledge base for such simulations, optimization of existing and new designs, theoretical verification of design parameters etc.
Some PC tools for simulation:
* 4nec2 (free)
* CST Microwave Design Studio
* Antenna Magus
My favorite is CST for now, very powerful and, if setup properly, results will be close to reality. Though needs time to get used to it.
While setting up a model in CST I try to use as much parameters and math as possible so later on optimization can be done automatically.
I going to list some of my setups here from time to time.
The results shown on the picture are no tweaked, dimensions are just set for best return loss.