Target Residual for Transient Analysis Duration

The residual is defined to be the ratio of the global RMS value of the electric field at time t to the maximum RMS value in the time range zero to time t:

		(1)
		(2)

where is the electric field at the ith interpolation point in the mesh which contains a total of N interpolation points. Note that the number of interpolation points is typically much larger than the number of mesh vertices. The time duration of a simulation can be controlled by specifying a target residual in db20 located in the Duration tab of the solution setup.