Eng.Wad
Member level 2
Hi everyone,
Anyway, I'm just a beginner in CST and your help will be appreciated. I just designed an UWB antenna in CST MWS, the antenna is : microstrip rectangular patch, partially grounded substrate. BACKGROUND MATERIALS set to NORMAL, Waveguide PORT was designed accordingly. Now, here's my problem: BOUNDARY CONDITIONS. When I set them ALL to open (add space), the simulation just looks like in the paper or much similar. When changing them , the result will be different and undesired. Could you share some hints regarding to boundary conditions. Please see the attached image.
Thank you.
![CST BC.PNG CST BC.PNG](https://www.edaboard.com/data/attachments/26/26274-46cb135c8ef667259ac554d658f1204a.jpg)
Anyway, I'm just a beginner in CST and your help will be appreciated. I just designed an UWB antenna in CST MWS, the antenna is : microstrip rectangular patch, partially grounded substrate. BACKGROUND MATERIALS set to NORMAL, Waveguide PORT was designed accordingly. Now, here's my problem: BOUNDARY CONDITIONS. When I set them ALL to open (add space), the simulation just looks like in the paper or much similar. When changing them , the result will be different and undesired. Could you share some hints regarding to boundary conditions. Please see the attached image.
Thank you.
![CST BC.PNG CST BC.PNG](https://www.edaboard.com/data/attachments/26/26274-46cb135c8ef667259ac554d658f1204a.jpg)