AN Card
This card defines a voltage source that can be added to any port of a general non-radiating network and that does not have a connection to geometry.
On the Source/Load tab, in the Sources on
geometry group, click the 
Voltage source
icon. From the ドロップダウンリスト, click the 
Voltage on network (AN) icon.
Figure 1. The AN - Add a voltage source to a network port dialog.
Parameters:
- New source
- A new excitation is defined which replaces all previously defined excitations.
- Add to sources
- A new excitation is defined which is added to all previously defined excitations.
- Network name
- The network or transmission line name, which with the network port number, will uniquely identify the connection terminals.
- Network port number
- The network port number, which with the network or transmission line name, will uniquely identify the connection terminals.
- Magnitude of source (V)
- Magnitude of the voltage source in V.
- Phase of source (degrees)
- Phase of the voltage source in degrees.
- Reference impedance (Ohm)
- 励振の基準インピーダンスは、Sパラメータの計算用に使用されると共に、得られた利得の計算に使用される基準インピーダンスです。この基準インピーダンスは、POSTFEKO内で反射係数を計算して表示するために使用されるデフォルトの基準インピーダンスでもあります。Sパラメータの計算でこの欄が空白または0の場合は、SPカードで指定された値が使用されます。得られた利得と反射係数の計算でこの欄が空白または0の場合は、50オームが想定されます。
Adding of a voltage source to an internal network port, which is not connected to geometry, is completely defined using the AN card. The connection is specified by the combination of the network name and port number that will be excited.
Note that for excitation of network ports connected to geometry, the A1 (voltage source on a segment), A2 (voltage source on a node), A3 (magnetic frill excitation) and AE (edge excitation) sources are supported.