Electrical description

Frequency - The Frequency option is used to define frequencies used in the calculations.

Ground - The Ground option is used to define the relative dielectric constant and conductivity of the ground for different media with respect to the origin.

Loaded wires - The Loaded wires option is used to define the resistivity of all wires. The default condition is that all wires are perfectly conducting.

Lumped loads - The Lumped loads option is used to define reponse and location of a lumped load in terms of a current node.

Loading individual wires - The Loading individual wires dialog box is used to define the resistivity and inductance of individual wires.  The default condition is that all wires are perfectly conducting.

Passive circuits - The passive circuits option is used to define passive circuits that can be added in series with the lumped loads. This option provides a load description that is independent of frequency. With this passive circuit capability a matching network can be described as a load using a Thevinin equivalent load.

Plane wave source - The plane wave source option is used to define an incident plane wave.

Transmission line bridle- The Transmission line bridle option is used to define an implicit model of a transmission line feed bridle from one source node through consecutive terminal nodes. These nodes are defined in terms of the current nodes. The implicit transmission line model does not account for interaction between the transmission line and the antenna. This approximation is justified if the currents in the line are balanced (e.g., a log periodic dipole antenna). The balance can be upset, if the transmission line is connected to an unbalanced load or by unsymmetrical interactions. If the unbalance is significant, the transmission line can be modeled explicitly by including the wires in the analysis.

Two-port networks - The Two-port networks option is used to define a two-port, non-radiating, network connected between any two current nodes. The characteristics are specified by short-circuit admittance parameter descriptions.

Two-port transmission lines - The Two-port transmission lines option is used to define a transmission line between any two current nodes.

Voltage/current sources - The Voltage/current sources option is used to define voltage/current and location of voltage/current sources in terms of current nodes.