5.2.3   Lumped impedance element

QuickWave enables using in the simulation scenario a lumped impedance element. The lumped impedance is inserted across one FDTD cell. Lumped impedances can be connected to the considered structure in a similar way as lumped ports, however, they cannot be used as ports for S-parameters extraction and as points for FD-probing calculations. There is a choice of five types of lumped impedance. For each of those types the user needs to specify the filed component to which the lumped element is attached.

The user may choose one of five available options:

• parallel RLC circuit, with R_p, L_p, and C_p parameters to be defined

• series RLC circuit, with R_s, L_s, and C_s parameters to be defined

• Drude circuit, with R_s, L_s, and C_p parameters to be defined

• Debye circuit, with R_s, C_s, and C_p parameters to be defined

• Lorentz circuit, with R_s, L_s, C_s, and C_p parameters to be defined

In all of the circuits, all or only chosen elements can have non-zero values.

The verification of the position and parameters of the lumped impedance can be made during the electromagnetic simulation using Effective FDTD mesh grid and the user can display the properties of the lumped impedance.