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Diffstat (limited to 'Windows/spice/examples/TransmissionLines/ltra7_4_line.sp')
| -rw-r--r-- | Windows/spice/examples/TransmissionLines/ltra7_4_line.sp | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/Windows/spice/examples/TransmissionLines/ltra7_4_line.sp b/Windows/spice/examples/TransmissionLines/ltra7_4_line.sp deleted file mode 100644 index 7be4615a..00000000 --- a/Windows/spice/examples/TransmissionLines/ltra7_4_line.sp +++ /dev/null @@ -1,113 +0,0 @@ -6.3inch 4 lossy lines LTRA model -- R load - -Ra 1 2 1K -Rb 0 3 1K -Rc 0 4 1K -Rd 0 5 1K -Re 6 0 1Meg -Rf 7 0 1Meg -Rg 8 0 1Meg -Rh 9 0 1Meg - - -* -* Subcircuit test -* test is a subcircuit that models a 4-conductor transmission line with -* the following parameters: l=9e-09, c=2.9e-13, r=0.3, g=0, -* inductive_coeff_of_coupling k=0.6, inter-line capacitance cm=3e-14, -* length=6.3. Derived parameters are: lm=5.4e-09, ctot=3.5e-13. -* -* It is important to note that the model is a simplified one - the -* following assumptions are made: 1. The self-inductance l, the -* self-capacitance ctot (note: not c), the series resistance r and the -* parallel capacitance g are the same for all lines, and 2. Each line -* is coupled only to the two lines adjacent to it, with the same -* coupling parameters cm and lm. The first assumption implies that edge -* effects have to be neglected. The utility of these assumptions is -* that they make the sL+R and sC+G matrices symmetric, tridiagonal and -* Toeplitz, with useful consequences (see "Efficient Transient -* Simulation of Lossy Interconnect", by J.S. Roychowdhury and -* D.O Pederson, Proc. DAC 91). - -* It may be noted that a symmetric two-conductor line is -* represented accurately by this model. - -* Subckt node convention: -* -* |--------------------------| -* 1-----| |-----n+1 -* 2-----| |-----n+2 -* : | n-wire multiconductor | : -* : | line | : -* n-1-----|(node 0=common gnd plane) |-----2n-1 -* n-----| |-----2n -* |--------------------------| - - -* Lossy line models -.model mod1_test ltra rel=1.2 nocontrol r=0.3 l=2.62616456193e-10 g=0 c=3.98541019688e-13 len=6.3 -.model mod2_test ltra rel=1.2 nocontrol r=0.3 l=5.662616446e-09 g=0 c=3.68541019744e-13 len=6.3 -.model mod3_test ltra rel=1.2 nocontrol r=0.3 l=1.23373835171e-08 g=0 c=3.3145898046e-13 len=6.3 -.model mod4_test ltra rel=1.2 nocontrol r=0.3 l=1.7737383521e-08 g=0 c=3.01458980439e-13 len=6.3 - -* subcircuit m_test - modal transformation network for test -.subckt m_test 1 2 3 4 5 6 7 8 -v1 9 0 0v -v2 10 0 0v -v3 11 0 0v -v4 12 0 0v -f1 0 5 v1 0.371748033738 -f2 0 5 v2 -0.601500954587 -f3 0 5 v3 0.601500954587 -f4 0 5 v4 -0.371748036544 -f5 0 6 v1 0.60150095443 -f6 0 6 v2 -0.371748035044 -f7 0 6 v3 -0.371748030937 -f8 0 6 v4 0.601500957402 -f9 0 7 v1 0.601500954079 -f10 0 7 v2 0.37174803072 -f11 0 7 v3 -0.371748038935 -f12 0 7 v4 -0.601500955482 -f13 0 8 v1 0.371748035626 -f14 0 8 v2 0.601500956073 -f15 0 8 v3 0.601500954504 -f16 0 8 v4 0.371748032386 -e1 13 9 5 0 0.371748033909 -e2 14 13 6 0 0.601500954587 -e3 15 14 7 0 0.601500955639 -e4 1 15 8 0 0.371748036664 -e5 16 10 5 0 -0.60150095443 -e6 17 16 6 0 -0.371748035843 -e7 18 17 7 0 0.371748032386 -e8 2 18 8 0 0.601500957319 -e9 19 11 5 0 0.601500955131 -e10 20 19 6 0 -0.371748032169 -e11 21 20 7 0 -0.371748037896 -e12 3 21 8 0 0.601500954513 -e13 22 12 5 0 -0.371748035746 -e14 23 22 6 0 0.60150095599 -e15 24 23 7 0 -0.601500953534 -e16 4 24 8 0 0.371748029317 -.ends m_test - -* Subckt test -.subckt test 1 2 3 4 5 6 7 8 -x1 1 2 3 4 9 10 11 12 m_test -o1 9 0 13 0 mod1_test -o2 10 0 14 0 mod2_test -o3 11 0 15 0 mod3_test -o4 12 0 16 0 mod4_test -x2 5 6 7 8 13 14 15 16 m_test -.ends test -* -x1 2 3 4 5 6 7 8 9 test -* -* -VS1 1 0 PWL(15.9NS 0.0 16.1Ns 5.0 31.9Ns 5.0 32.1Ns 0.0) - -.control -TRAN 0.2NS 50NS -plot v(1) v(2) v(6) v(7) v(8) v(9) -.endc -* -.END |