Learning Forum

[Anjali A R]

In relation to this, the mode field I am interested in looks like this (for 15 mm bend radius). The entire field seems to have shifted to the slab.

Also, I have followed the instruction in this post (/forum/forums/topic/is-it-possible-to-simulate-bent-waveguide-using-eme/) to check the bending loss using EME as well. I found that the loss for the same bend radius keeping varying with change in span of simulation region. 

The bending loss for 15 mm bent radius, as obtained from FEEM was 50 dB/cm, whereas EME gives different values as shown (for same settings, but different simulation region span).

Here, 44.7 dB/cm is the value obtained, which has been reduced to 7.8 dB/cm for a larger simulation span.

How much span should I keep while performing EME simulation? Please suggest what can be done.

Thank you.