求大神 2.4GHz混频器网格修改！！！急等！！！

446701197

MIXER CIRCUIT
: ]7 ~/ W0 X" W! G% ?5 lM1 6 4 14 0 NMOS L=0.6U W=170U
6 @* N4 ^2 r/ {. O5 J6 UM2 7 5 14 0 NMOS L=0.6U W=170U
M3 6 5 15 0 NMOS L=0.6U W=170U
M4 7 4 15 0 NMOS L=0.6U W=170U
% m4 ~0 M/ L" A8 Y* Z6 a) LM5 14 18 13 0 NMOS L=0.6U W=277U
' u* p! ]0 J* AM6 15 19 13 0 NMOS L=0.6U W=277U
M7 13 1 0 0 NMOS L=2U W=400U
# X9 v( I: q$ ~/ c: Y3 _R1 8 6 900
R2 8 7 1200
% }6 @. K6 ?- z2 iR3 4 11 10K
5 U& g0 K8 [: V6 P4 ZR4 5 12 10K
R5 16 18 10K
R6 17 19 10K
VDD 8 0 5
Vref1 1 0 1.2
7 b( I" I% K' V8 NVref2 11 0 2.8
Vref3 12 0 2.8
/ R8 g  L8 m0 ^0 T* DVref4 16 0 1.8
5 k2 f! C0 ?. U2 J" P1 w0 pVref5 17 0 1.8
2 ?) A- d; t3 x3 b1 e% WC1 9 4 1n
C2 10 5 1n
2 o6 g/ S, h, }4 mC3 2 18 1n
9 k, n/ o* U9 Y# O, v+ NC4 3 19 1n
c5 6 8 100p
c6 7 8 100p
% Q2 v9 J5 G: \* O1 w# yVLO1 9 0  SIN(0 0.8 50MEG 0 0 0)
VLO2 10 0  SIN(0 0.8 50MEG 0 0 180)
2 e# v( G" L5 LV1 2 0 SIN(0 30m 50.1MEG 0 0 0)
8 y  J& t( w& C) NV2 3 0 SIN(0 30m 50.1MEG 0 0 180)
6 t- L7 l/ E9 `# e8 ~& K! u# \: X! X.MODEL NMOS NMOS(LEVEL=2 LD=0.250U TOX=365E-10
+NSUB=2.13818E+16 VTO=0.84898 KP=5.77900E-05
+GAMMA=0.8905 PHI=0.6 U0=610.8 UEXP=0.244555
. V. M" r* H  j9 _7 |+UCRIT=128615 DELTA=2.0298 VMAX=92227.9 XJ=0.250U
+LAMBDA=1.956049E-02 NFS=2.307838E+12 NEFF=1
% z: C+ U, x" h( {4 \. Q+NSS=1.0E+12 TPG=1.0 RSH=22.730 CGDO=3.54775E-10
; D$ D8 R, Y" t( @% g: r+CGSO=3.54775E-10 CGBO=6.354506E-10 CJ=3.7740E-04
# _, z- w+ J) c  o+MJ=0.45890 CJSW=5.1360E-10 MJSW=0.36620 PB=0.800)
.TRAN 0.1u 100u 0 1n
" ?  B* j0 [( y# A" P8 H+ r7 {.PROBE
. t  e! {- f0 w8 L8 N7 q.OP
.END


这个怎么修改成2.4GHz的啊 并仿真出噪声系数 附有电路图   求各位大神帮忙