Port node
Keywords
electrical, node, bidirectional
Ports
| Name | Type |
|---|---|
| port 1 | Electrical Node |
| port 2 | Electrical Node |
| port 3 | Electrical Node |
Properties
General Properties
| Name | Default value | Default unit | Range |
|---|---|---|---|
name Defines the name of the element. |
Port Node | - | - |
annotate Defines whether or not to display annotations on the schematic editor. |
true | - | [true, false] |
enabled Defines whether or not the element is enabled. |
true | - | [true, false] |
type Defines the element unique type (read only). |
Port Node | - | - |
description A brief description of the elements functionality. |
Port node | - | - |
prefix Defines the element name prefix. |
N | - | - |
model Defines the element model name. |
- | - | - |
library Defines the element location or source in the library (custom or design kit). |
- | - | - |
local path Defines the local path or working folder $LOCAL for the element. |
- | - | - |
url An optional URL address pointing to the element online help. |
- | - | - |
Standard Properties
| Name | Default value | Default unit | Range |
|---|---|---|---|
number of ports Defines the number of output ports for the element. |
3 | - | [2, +∞) |
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Implementation Details
The element defines a common node with the same voltage, and it is defined by the following s-parameters matrix:
$$S(f)=\begin{bmatrix} \frac{2-N}{N} & +\frac{2}{N} & \dots & +\frac{2}{N} \\[0.3em] +\frac{2}{N} & \frac{2-N}{N} & \dots & +\frac{2}{N} \\[0.3em] \dots & \dots & \dots & +\frac{2}{N} \\[0.3em] +\frac{2}{N} &+\frac{2}{N} & \dots & \frac{2-N}{N} \end{bmatrix}$$
Where \(N\) is the element number of ports. For a Port Node with 3 ports, the s-parameter matrix is:
$$S(f) = \begin{bmatrix} -\frac{1}{3} & +\frac{2}{3} & +\frac{2}{3} \\[0.3em] +\frac{2}{3} & -\frac{1}{3} & +\frac{2}{3} \\[0.3em] +\frac{2}{3} & +\frac{2}{3}& -\frac{1}{3} \end{bmatrix}$$
User can add a Port Node to the circuit from the Element Library and configure its number of ports; or if inserting a node into existing connections is enabled, a Port Node element will be automatically inserted when connecting multiple electrical ports.
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