[[File:tline.png|thumb|300px| The schematic symbol of the Generic T-Line device.]]
[[File:tline2.png|thumb|400px| The schematic symbols of the Generic Open Stub (left) and Generic Short Stub (right) devices.]]
[[File:tline4.png|thumb|480px| The schematic symbols of the Generic T-Line Discontinuity devices: (a) Open End, (b) Bend, (c) Step Junction, (d) Tee Junction and (e) Cross Junction.]]
[[RF.Spice]] offers a passive device called Generic T-line with the keyboard shortcut âTâ, which is a general purpose frequency-domain transmission line segment model. It is based on the native SPICE LTRA model, but with the following [[parameters]]:
The Generic Open Stub and Generic Short Stub are two one-port devices based on the Generic T-Line device. They represent terminated generic transmission line segments. In the open stub case, the termination load is Z<sub>L</sub> → ∞, and in the short stub case, the termination load is Z<sub>L</sub> = 0. The [[parameters]] of both open and short stub devices are the same as those of the generic T-line device.
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[[File:tline2.png|thumb|400px| The schematic symbols of the Generic Open Stub (left) and Generic Short Stub (right) devices.]]
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=== Generic T-Line Discontinuities ===
For more information about generic transmission line discontinuity devices, please refer to [[Glossary_of_Generic_RF_Devices | Glossary of Generic RF Devices]].
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[[File:tline4.png|thumb|480px| The schematic symbols of the Generic T-Line Discontinuity devices: (a) Open End, (b) Bend, (c) Step Junction, (d) Tee Junction and (e) Cross Junction.]]
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== Physical Transmission Lines ==