AmateurRadist

i didn't noticed that, now it looks far better with your hints, regarding S11 parameter, in data report section there is no such, so is it calculated in HFSS with a formula? like s11 = gamma = (Z-Zo)/(Z+Zo)

@Docgi thank you very much for detailed answer, actually cylinders were plastic spacers, so i didn't assign any material, after your suggestion i deleted them. Now it looks far better, i'm wondering why half radiation goes backward eventhough there is ground plate, and how you check S11 parameter? in my "far field report" section there is no S11 Also vswr is very high, how i can lower it? thanks in advance 58ghz_new.aedt

@Docgi thanks, so i was getting some errors and i googled it and to solve it i had to click on "solve inside", it seems this created another error

@Admin I created GP and validation was ok, maybe somehow saved incorrectly or i don't know

aedt file link is under the photo

Hi everyone, here i simulated 5.8GHz panel antenna in HFSS 2020R2, some results not showing correctly, what might be the problem? 58ghz_panel.aedt

can someone hint me where i can get CST for free ot at reasonable price?

thanks, finally after some attempts it worked perfectly vswr <1.5, forgot to take photos

@clanon thanks yes with that filter added vswr was good, is there a filter for 5.8 too? To make 5.8 at least workable

After 10 failed attempts I think deviding was not good idea, so friends just use antenna as it is, hope above information will be useful to someone thanks

Yes it become just ordinary service recently, can you give some advices how to change lines?

I have at top corners, small square, can you help with that and check on simulation software?

You mean lines connecting elements?

Which limes?

I tried like this but still fail