eldo_user

The default mixed-mode can be set using the .LIN command, with syntax:
.LIN mixedmode2port=dd|dc|ds|cd|cc|cs|sd|sc|ss
Example
V1 in1 in2 iport=1 MODE=single
V2 in4 in5 iport=2 MODE=differential
.PLOT AC Sdb(1,1) Sscm(1,2) Ssdp(1,2) Sddr(2,2) Scdi(2,2)
Y Parameter Extraction
.PLOT AC YR(i, j)
.PRINT AC YI(i, j)
.PRINT AC YM(i, j)
.PLOT AC YDB(i, j)
.PRINT AC YP(i, j)
.PRINT AC YGD(i, j)
Z Parameter Extraction
.PLOT AC ZR(i, j)
.PRINT AC ZI(i, j)
.PLOT AC ZM(i, j)
.PLOT AC ZDB(i, j)
.PRINT AC ZP(i, j)
.PRINT AC ZGD(i, j)
Where Sxx(i, j), (Yxx(i, j), Zxx(i, j)) give the influence of port j on port i.
Working with S, Y, Z Parameters
Matrix (G, H, T, A) Parameter Extraction
Table 14-1. Mixed-Mode S Parameter Extraction Default Rule (cont.)
Port 1 Port 2 Default Available quantities
Balanced Single DS Sdd(1,1) Sdc(1,1) Scd(1,1) Scc(1,1)
Sds(1,2) Scs(1,2)
Ssd(2,1) Ssc(2,1)
Sss(2,2)
Matrix (G, H, T, A) Parameter Extraction
Once the simulation has been setup, then G, H, T, A parameters can be extracted during an AC
or FSST simulation by use of the .PRINT and .PLOT commands as described in the following
subsections.
Tip
See “Simulation Setup for S, Y, Z Parameter Extraction” on page 684.
Eldo® User's Manual, 15.3 687