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Selecting boundary mode effective index.
Posted Oct 9, 2016, 2:16 p.m. EDT 1 Reply
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I'm doing a simple dielectric waveguide problem with the EMW physics. It's a short piece of straight guide surrounded by cladding and PML. Ports at the ends. I have two numeric ports. Wave excitation on only for port 1. I have two BMA studies with the FD study. I choose to solve for 4 modes. I run the studies. Everything's fine except the solution is shown only for the 4th mode (if I choose 3 modes I see the result for only the 3rd mode, etc...). I can't find anything to select which mode to display. I expected a selection list box in, maybe, the 3D plot group node, or the surface plot node, or maybe even the data set node. No dice. Does anybody know where they hide the selector for the mode to show when solving for multiple modes? Or is this not controllable?
1 Reply Last Post Oct 10, 2016, 11:57 a.m. EDT
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Posted:
8 years ago
I have adjusted the settings for "Search for modes around" and "Mode search method" so that the mode of interest ends up being the last (or only) mode.
A couple of tips:
- "out of plane wavenumber" may be a better way to choose/ identify modes
- if you have degenerate modes you may need to introduce a small asymmetry to split them.
DW Greve
A couple of tips:
- "out of plane wavenumber" may be a better way to choose/ identify modes
- if you have degenerate modes you may need to introduce a small asymmetry to split them.
DW Greve