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*diff line on the top layer
* V. D B8 |/ M) V! `& p*diffline.sp : caluclate diff stripline[pcbdiff_top.rlgc]! g$ k% F$ q5 \) O+ o& ^3 g
*created by liliming
0 P* |8 X L& V' J7 v. M*****************************************************
# [8 L& B: r: `& a$ v$ i5 Q2 Z* material FR-4 W= S=
: C& K- ]+ m) N7 q' h# l& R. i* CRISS SECTUIB DUAGRAN AS FIKKIWUBG( J5 c( X. J0 Q; B5 ]
*//////////----dWidth--- dGap ---dWidth----//////////dThickness
3 x: o" G! Q2 y9 |3 B*////////////////////////////////////////////////////dHeight1
: z4 d: o8 r$ }( B5 v0 n* l*----------------------------------------------------dThickness
& |. B: I5 X& }******************************************************
' J* J6 t. q: b) ?8 M! x( s% u.param dHeight1=8mil
: m) ~; J+ ^/ J.param dWidth =5mil
G1 W6 {5 w. \+ _' o$ m+ z.param dGap =9mil0 p8 x2 Y; t M, O
.param dThickness=1.2mil
4 R$ @7 ~4 R2 w5 W0 V: p% E.param dLength=10000mil
# [3 e3 a# Y9 l2 m ~. M2 P6 u. e.options probe post
3 }8 `/ I/ y& U5 a2 Svimpulse in1 gnd pulse (1.8v 0v 0ps 50ps 50ps 450ps 1ns)! k. M+ A: J/ ?! I2 V2 s0 X+ j) D
wline in1 in2 gnd out1 out2 gnd fsmodel=dstrip n=2 l=dLength% Z; G1 a5 t/ @
.material die dielectric er=4.3 losstangent=0.017- K# z* M9 R; j S' W% }
.material copper metal conductivity=57.6meg
5 }2 T& p- Z3 J* y9 e6 {.shape trace rectangle width=dWidth height=dThickness
z0 G) X+ O( z! |.layerstack stack0 Q H. F; S0 M7 ]# \4 n) @
+layer=(copper,dThickness) layer=(die,dHeight1)
3 }) z( T8 H- P* y1 ~# o' t# q/ ?.fsoptions opt1 printdata=yes computeg0=yes computegd=yes computer0=yes computers=yes
$ C6 t* C1 n7 P: {5 H' E, A.model dstrip w modeltype=fieldsolver9 c4 f0 ]3 \ W& k
+layerstack=stack
: V5 q8 n5 B, B, _4 I9 ?; f+fsoptions=opt1* t! W2 j7 N. Y+ s3 J1 P# `' m
+rlgcfile=pcbdiff_top.rlgc
* k2 o# a V) f! e+outputformat=rlgcfile- l6 x! l3 k3 n& H
+conductor=(shape=trace origin=(0mil,'dHeight1+dThickness') material=copper type=signal)7 v" E2 n% A. Z: ^) U: [
+conductor=(shape=trace origin=('dWidth+dGap','dThickness+dHeight1') material=copper type=signal)
* w/ E1 L0 B% t# c" s$ @.tran 1ns 10ns0 p5 B, \- @% B: P$ P) ~
.probe v(out1) v(in1)
& u L2 z% k; Q- T( U.end |
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发表于 2010-5-15 11:09
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楼主
RLGC模型先上有人顶再上s参数
