Green cross in varFDTD

varfdtd

#1

Hi,

Is there any script to move green cross in varFDTD?

BR,
Nouman


#2

Hi @nouman.zia

Yes, you can set the (x0,y0) values from script:

set("x0",0);
set("y0",1e-6);


#3

Thank you @bkhanaliloo !
What positon of test points is recomended when simulation region contains different structures having different thicknesses (below)?
image

image

I’m afraid that varFDTD may not work properly for thickness variations?


#4

Hi @nouman.zia

The blue crosses do not affect the simulation resutls:
Reflections at butt-joint interface

varFDTD works for planar structures where 3D geometries can be collapsed into 2D geometries:
https://kb.lumerical.com/en/index.html?solvers_varfdtd.html

If the cross section varies, varFDTD may not provide correct results.