Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Optimalization of microstrip antenna model - bad param calculation

Please login with a confirmed email address before reporting spam

Hello

I have probleme with modeling our microwave antena model.
Modeled parameters (S11, S21 VSWR) is far from the reality. I attached files our antenna in real and our measurement microwave analyser (there S22 = S11 (middle), S21 = S32 (bottom), VSWR (upper)). This simulation isnt usefull for our experiment.

Model link: drive.google.com/open?id=0B694MDPvGbbYMnk0dW16dENIQ28
(Its because size is largen than max. size of attached file)

Detail of experiment:
We stimulate diamond (that is placed on the omega shape) sample with microwave (sweep 2-4GHz). Input source have 1.8V and its connected to antena by coaxial cable and SMA connectors. On one site there is stimulation by microwave, on second there is 50 ohm terminal.

Can you please somebody fix my model for making better S parameters? I have a issue that this can be done by wrong use of input and output ports on modele but I have no idea how to fix it.
Thanks a lot


0 Replies Last Post 18.05.2017, 05:09 GMT-4
COMSOL Moderator

Hello Josef Soucek

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.