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Open Stub, Electrical Length

Open Stub, Electrical Length

Netlist Format

An instance of an ideal open stub with electrical length has the following netlist syntax:

Axxx n1 Z=val E=val A=val F=val COMPONENT=ideal_open_stub_electrical

n1 is the name of the node attached to the open stub. A reference node of ground (node 0) is automatically supplied, and is not shown in the netlist. The entry COMPONENT=ideal_open_stub_electrical identifies the element as an ideal open stub with electrical length.

**Ideal Open Stub with Electrical Length, Instance Parameters**
Parameter	Description	Units	Default
Z	Characteristic impedance	Ohm	50.0
E	Electrical length at reference frequency	Degree	45
A	Attenuation constant at reference frequency	dB/m	0.0
F	Reference frequency for E	Hz	1e9

Netlist Example

A44 Port1 E=45 F=1.0e9 COMPONENT=ideal_open_stub_electrical

Notes

1. The open stub, electrical length model is equivalent to a transmission line model followed by an open model. This is also true in the case of negative length specifications, which are used for deembedding purposes. Note that in the latter case, the open stub model is equivalent to the transmission line model with a negative length terminated by an open.

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