Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
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.
RF: Resolving Singularities; Simple Antenna Signal Mapping
Posted 2011年8月12日 GMT-4 13:32 RF & Microwave Engineering Version 4.1 0 Replies
Please login with a confirmed email address before reporting spam
I have a simple antenna I'd like to model constructed from an SMA-fed wire connected inside a cylindrical steel can, positioned at the half-wavelength point off the can's base.
The geometry is defined in 3D.
What I'm having difficulty with is mapping the input signal to that SMA wire.
I've tried defining a simple sine function, and two ports: one for the SMA wire (input), and one for the can (output) -- where does the input connect in the Electromagnetics solver? And is the open edge of the can the correct port declaration for the antenna's propagation?
I've tried inputting a fixed frequency into the Maxwell Equation, as well as the function label (which appears orange).
In both cases, I get singularity errors in the mesh when I'm trying to get an electromagnetic field distribution.
Any insights on how to correct these complications?
Thanks,
DSE
Hello Deran Eaton
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.