angolaX
Junior Member level 2
printed monopole antenna design
hello guys... I need your help and suggetions.. .please...
I am doing a project on UWB antenna and I have been trying to recreate the designs (for the past 2 month) of UWB rectangular /Cicular monopole on CST. Both my design and the journals were I took the dimention from are enclosed on the respective zip files, I have read the help files but i still can solve the problem, right now I don't know if it is the software or my design.
For both design I am simulating from 0 - 15Ghz frequency range.
For the case of the rectangular printed monopole: the following warning message keeps coming:
- Some PEC material is touching the boundary! This may lead to inaccurate farfield results.
And when I try to plot the farfield for (3Ghz) I have the following warning
-Warning: Distance to open boundary is smaller than lambda /8. Farfield dbi inacurate
For the case of CD printed monopole:
For this one It keep giving some error message until I have change the Line per wavelength for 10 to a value < 6. But the results S11 are far from what I expected, specially from 10Ghz above it seems to be well matched.
I have read the CST helps so many time I still cann't figure it out what the problem is... So you guys are my only hope... If you use CST can have look at my design and give some suggetion on where the problem might be...please.
Wainting for your replays.
thanks
hello guys... I need your help and suggetions.. .please...
I am doing a project on UWB antenna and I have been trying to recreate the designs (for the past 2 month) of UWB rectangular /Cicular monopole on CST. Both my design and the journals were I took the dimention from are enclosed on the respective zip files, I have read the help files but i still can solve the problem, right now I don't know if it is the software or my design.
For both design I am simulating from 0 - 15Ghz frequency range.
For the case of the rectangular printed monopole: the following warning message keeps coming:
- Some PEC material is touching the boundary! This may lead to inaccurate farfield results.
And when I try to plot the farfield for (3Ghz) I have the following warning
-Warning: Distance to open boundary is smaller than lambda /8. Farfield dbi inacurate
For the case of CD printed monopole:
For this one It keep giving some error message until I have change the Line per wavelength for 10 to a value < 6. But the results S11 are far from what I expected, specially from 10Ghz above it seems to be well matched.
I have read the CST helps so many time I still cann't figure it out what the problem is... So you guys are my only hope... If you use CST can have look at my design and give some suggetion on where the problem might be...please.
Wainting for your replays.
thanks