a little experience in HF antenna simulation of CST MWS

In cst mws simulation of HF ANTENNA , I always have problem of the antenna radius, because its too thin. But recently I found a method.I use the lumped network with 0.001 Ω, so it seems the curve with a very small impedance can be the antenna. You can try it ! The writing of my English is a little poor:D:D

can you send your CST model to me?