Properties of the “ebeam_dc_halfring_straight_te1550” element :
wg_width = 0.5[μm]
Properties of the “ebeam_wg_integral_1550” element:
wg_length= half of the circumference of the first element
As, you already know , there is a ".dat " file with the S parameters of the above “ebeam_dc_halfring_straight_te1550” element. So the FDTD Solutions is not required to be launched automatically because the “.dat” file with the S parameters already exists.
This is the transmission spectrum.
**I would recommend you to make a test . You will discover something very strange.**Open the “ebeam_v1.2” folder —>“source_data” folder—>“ebeam_dc_halfring_straight_te1550” folder.
Find the “.dat” file of radius=5[μm] and delete it .
Then, go to INTERCONNECT and try to drag and drop “ebeam_dc_halfring_straight_te1550” element. A message will be appeared. The S parameters does not exist , so FDTD Solutions will be launched automatically. After FDTD simulation is complete , you can plot the transmission spectrum.
You would expect that the new transmission spectrum will be the same as previous. But, it’s not the same. Here is the new transmission spectrum.
Here is a image with the two diagrams in one, so you can look it better.
I had the expectation that they will be the same.