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How to measure the gain on an antenna in comsol?
Posted 2015年12月9日 GMT-5 14:30 RF & Microwave Engineering Version 5.1 4 Replies
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Hi Folks,
I wanted to know how can i find the gain of an antenna. I am using one of the examples in comsol website, dipole antenna. Here is the link for it:
www.comsol.com/model/dipole-antenna-8715
How to measure tha gain in an specific direction?
I can see in the 2D polar plot, there is r maximum and r minumum, but i don't really know what does that mean.
Thank you.
--
Hadi Maghsoudiganjeh
I wanted to know how can i find the gain of an antenna. I am using one of the examples in comsol website, dipole antenna. Here is the link for it:
www.comsol.com/model/dipole-antenna-8715
How to measure tha gain in an specific direction?
I can see in the 2D polar plot, there is r maximum and r minumum, but i don't really know what does that mean.
Thank you.
--
Hadi Maghsoudiganjeh
4 Replies Last Post 2017年7月7日 GMT-4 23:04
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Posted:
9 years ago
Hi Hadi,
following discussion might be interesting for you. It is quite old, however there is no build-in gain-variable implemented in comsol as far as I know.
www.comsol.com/community/forums/general/thread/20515/
Maxim
following discussion might be interesting for you. It is quite old, however there is no build-in gain-variable implemented in comsol as far as I know.
www.comsol.com/community/forums/general/thread/20515/
Maxim
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Posted:
9 years ago
Thank you Maxim! I found it.
There is an expression for gain under far field that gives the gain both in db and dbi.
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Hadi Maghsoudiganjeh
There is an expression for gain under far field that gives the gain both in db and dbi.
--
Hadi Maghsoudiganjeh
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Posted:
7 years ago
Updated:
7 years ago
Hello,
Would you mind to share the equation to calculate the gain please as I have been facing the same issue as you had.
Many thanks,
Yang
Would you mind to share the equation to calculate the gain please as I have been facing the same issue as you had.
Many thanks,
Yang
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Posted:
7 years ago
The recent versions of Comsol Multiphysics, RF module, actually do offer expressions for gain in the post-processing options. You can find additional information, including some discussion of the equations used, in the help system. Just search for it.