Lossless transmission line
- Instance line
Tname …- Terminals
- P1+, P1-, P2+, P2-
- Described in
- Transmission lines
- Source
src/lib/dev/tra/tra.c
Instance parameters (16)
Input and output (8)
| name | type | description | notes |
|---|---|---|---|
z0 (also zo) | real | Characteristic impedance | listed by show only when all parameters are asked for |
f | real | Frequency | ac; listed by show only when all parameters are asked for |
td | real | Transmission delay | ac; listed by show only when all parameters are asked for |
nl | real | Normalized length at frequency given | ac; listed by show only when all parameters are asked for |
v1 | real | Initial voltage at end 1 | ac; listed by show only when all parameters are asked for |
v2 | real | Initial voltage at end 2 | ac; listed by show only when all parameters are asked for |
i1 | real | Initial current at end 1 | ac; listed by show only when all parameters are asked for |
i2 | real | Initial current at end 2 | ac; listed by show only when all parameters are asked for |
Input only (1)
| name | type | description | notes |
|---|---|---|---|
ic | real vector | Initial condition vector:v1,i1,v2,i2 |
Output only (7)
| name | type | description | notes |
|---|---|---|---|
rel | real | Rel. rate of change of deriv. for bkpt | |
abs | real | Abs. rate of change of deriv. for bkpt | |
pos_node1 | integer | Positive node of end 1 of t. line | listed by show only when all parameters are asked for |
neg_node1 | integer | Negative node of end 1 of t. line | listed by show only when all parameters are asked for |
pos_node2 | integer | Positive node of end 2 of t. line | listed by show only when all parameters are asked for |
neg_node2 | integer | Negative node of end 2 of t. line | listed by show only when all parameters are asked for |
delays | real vector | Delayed values of excitation | listed by show only when all parameters are asked for |
Parameters are set on the instance or .model line as keyword=value, and read back with @name[keyword] or the show and showmod commands. See the device reference.