vfurlan
Full Member level 2
Hello!
I have problems simulating a patch antenna, hopefully someone will help me. I'm working with HFSS!
I'm working on a patch antenna with microstrip feed. To match the antenna impedance I have to make an insert feed. I have calculated the insert length but to be sure I made an optimetrics analysis with different length. Length from 22 to 26 mm with 0,1mm step. The problem is: after I made a S11 parameter diagram a saw that the antenna resonate at different freq. and with different S11 for MINIMAL insert length difference (0,1mm).
Here are the pictures of my antenna and S11 diagram so you could understand what I'm talking about.
Does someone know what's the reason for such huge S11 difference for so small insert length difference? Is it a HFSS problem (I think it is)? If yes what am I doing wrong? Or what?
Thanks
I have problems simulating a patch antenna, hopefully someone will help me. I'm working with HFSS!
I'm working on a patch antenna with microstrip feed. To match the antenna impedance I have to make an insert feed. I have calculated the insert length but to be sure I made an optimetrics analysis with different length. Length from 22 to 26 mm with 0,1mm step. The problem is: after I made a S11 parameter diagram a saw that the antenna resonate at different freq. and with different S11 for MINIMAL insert length difference (0,1mm).
Here are the pictures of my antenna and S11 diagram so you could understand what I'm talking about.
Does someone know what's the reason for such huge S11 difference for so small insert length difference? Is it a HFSS problem (I think it is)? If yes what am I doing wrong? Or what?
Thanks