# LF Card

This card impresses a complex impedance between two points inside a FEM mesh.

On the Source/Load tab, in the Loads / networks group, click the  Load icon. From the ドロップダウンリスト, click the  Load FEM (LF) icon.

## Parameters:

Define/replace a complex load impedance (FEM)
Define a load with the following parameters.
Remove all LF type loads previously defined
This LF card does not define a load, but rather all previously defined LF loads are deleted. All the other input parameters of this card are ignored.
Real part of impedance (Ohm)
The real part of the complex impedance in $\Omega$ .
Imaginary part of impedance (Ohm)
The imaginary part of the complex impedance in $\Omega$ .
Complex impedance
The real and imaginary part of the complex impedance in $\Omega$ .
Series circuit
The resistor value in $\Omega$ , inductor value in Henry and the capacitor value in Farad to be added as a series circuit.
Parallel circuit
The resistor value in $\Omega$ , inductor value in Henry and the capacitor value in Farad to be added as a parallel circuit.
SPICE circuit
Specify the name of an one-port SPICE circuit to define a load between two pins. Define the SPICE circuit using the SC card.
Touchstone file
Specify a one-port Touchstone file (.s1p, .z1p, .y1p) to define a load.
Note: If the load is added to a port that has a voltage source, the load is placed in series with the voltage source.