hello; I work on modeling a waveguide with ferrite bye transmission line matrix
My code diverge after some 4000 iterations
i used higdon s ABC
Did anyone can explain to me where can be the problem or i have to implement PML
the waveguide is modeling as a PEC
I use a sinusoidal excitation in the plan XOY (Z=1)
and also higdon s absorbing boundary on (Z=1) and (Z=zmax)
the problem is after some iterations ; the transmission coefficient (in the time domain)of the structure oscilate and became sronger (dont converge to a finite value)
Is the problem is due to boundaries?
And What do you suggest