[THz antenna in CST MWS ] Maximum simulation time reached, solver stopped ??

[kela3kela]

I am trying to simulate an sntenna at 0.3 THz. I m using a wave-guide port to excite it. Its a simple patch antenna structure with SiO2 as substrates. I came across the following error.
"Maximum simulation time reached, solver stopped."

I know this error can be resolved by increasing the "Number of pulses" from 20 to a higher number. I have increased it till 400, but still the error appears. Any other solution to this error.

Awaiting replies,

Regards

 

[johnjoe]

Maybe you have some simulation problems, for example, check the energy diagram if the system energy decays with time. And post a pic of your setup.