But, when I simulate for bent waveguide, there are higher modes generated for the same dimension, which are higher than the effective indices of the substrate.
For eg, a rectangular waveguide hads, 2 guided modes, now i enable bend waveguide anaylsis for calculating modes in circular bend, and I get more than 2 modes which are much higher effective index than straight waveguide.
also, based on the radius, the effective index values differ and the first order modes look like this:
As the radius is increased, there is optimum effective index with 2 modes.
What could this be?
Please Login to Report Topic
Please Login to Share Feed
You are navigating away from the AIS Discovery experience