simulation in hfss11

[vihang]

I'm doing project on GTEM cell..I got error when i used fast sweep "poor conerges of seeding data" how to resolve it in my case.and also my simulation over without resuylts.1st I did simulation It produced result bu than no result at all...plz any one help me...

 

[reidintransit]

How can anyone help without more information? Post your project or give more details.

 

[vihang]

GTEM cell is basically use for measuring radiation.Its pyramidal structure.length is 250 cm,width and height is 100 cm.inside it there are absorbers.absorber length is λ/2.where λ is operating frequency.i have used both frequency sweep linear and log scale in discrete form.my RAM is 3 GB.and also when i tried to give excitation at connector there is error message pop up comes.I send you both images error message and structure

 

[reidintransit]

Do you have a vacuum/air box around the structure? looks like you have an object intersection error, as well as ports set up wrong errors.

 

[vihang]

yes i have vaccum structure around for giving boundry.I had object intersection error.But I resolved it.how to solve port set up errors.I had given excitation at end of the absorber by putting vacuum sheet.thank you for your quick replies

 

[reidintransit]

2D sheets can't be assigned as materials for anything but finite conductivity boundaries. If you are selecting the faces of the pyramid as a port that is what is causing the port assignment error. like the error says only faces in the same plane can be assigned as a single port. I think the outer faces should be PEC boundaries. Port should be at connector on pointy tip of the cone. you can use a non model plane or object internal to plot fields at the DUT as an option.

 

[vihang]

ok sir...I have problem that any modification I did there were no change in results regardless of any change in physical geometry or change in material why it is happen so???