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*diff line on the top layer
/ R+ @; o1 B" k- w8 l*diffline.sp : caluclate diff stripline[pcbdiff_top.rlgc]/ p2 S* V3 R5 y9 `- [+ E8 Q& a
*created by liliming0 v6 e0 V2 m- z4 D- Z3 |/ A$ y
*****************************************************( w9 L0 ]& h* R# o" s
* material FR-4 W= S=/ I1 y# w6 {0 |7 |0 k- {4 W
* CRISS SECTUIB DUAGRAN AS FIKKIWUBG
7 D$ i% ` p. O4 M' _3 y' W& N*//////////----dWidth--- dGap ---dWidth----//////////dThickness- R* l; i; n$ M$ m/ F
*////////////////////////////////////////////////////dHeight13 J0 r7 y, ]4 A
*----------------------------------------------------dThickness
* f% a1 Q. Y* p' m. h$ r, J******************************************************6 Z3 v, d3 R" W
.param dHeight1=8mil
' i5 P1 g! o, y) C- n: J( A+ N.param dWidth =5mil
/ a6 Z4 {' x. e& ~5 P# y7 U.param dGap =9mil
4 O# ^* h! E+ H.param dThickness=1.2mil+ X7 m; Z- V: _: w& J: I
.param dLength=10000mil# }, I, ^5 {& Y/ H
.options probe post- Y) ?% e2 b# s. {2 q/ M# O
vimpulse in1 gnd pulse (1.8v 0v 0ps 50ps 50ps 450ps 1ns)- d7 p- O8 m' v# C5 e% Z
wline in1 in2 gnd out1 out2 gnd fsmodel=dstrip n=2 l=dLength
, s; c& P6 ]* V% ?2 z3 B- K.material die dielectric er=4.3 losstangent=0.017
( w2 i' d6 q Z7 ^: z.material copper metal conductivity=57.6meg
& u9 @* a. @ o# U; I& E.shape trace rectangle width=dWidth height=dThickness" W2 `1 u7 d ]7 m* r6 G% g7 ]6 D+ A
.layerstack stack% j C3 c) Q7 R6 N' e$ g
+layer=(copper,dThickness) layer=(die,dHeight1)' f0 _* n- I* @% H8 Q
.fsoptions opt1 printdata=yes computeg0=yes computegd=yes computer0=yes computers=yes
5 ^6 w" n4 v' ?4 y6 t+ ?! z.model dstrip w modeltype=fieldsolver$ ^0 x7 }/ v, I0 i
+layerstack=stack
, k# h3 t) t, H; o+ P+fsoptions=opt1
8 M8 g9 y6 V" y, @; p+rlgcfile=pcbdiff_top.rlgc
/ x" U. R5 [3 A' t& \+outputformat=rlgcfile
( [$ s' U- j! P/ p, C7 j7 Q+conductor=(shape=trace origin=(0mil,'dHeight1+dThickness') material=copper type=signal)0 E3 v( \$ G! d; @7 I9 D) x2 W
+conductor=(shape=trace origin=('dWidth+dGap','dThickness+dHeight1') material=copper type=signal)
, n* m( r( J$ z.tran 1ns 10ns" s) w; f3 J5 p5 e( m4 ~
.probe v(out1) v(in1)
. f5 l, F3 R) @9 O. p$ ]$ e; a$ m.end |
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发表于 2010-5-15 11:09
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淘帖
支持！
反对！
楼主
RLGC模型先上有人顶再上s参数