求大神 2.4GHz混频器网格修改！！！急等！！！

446701197

MIXER CIRCUIT
0 B& M4 E" A0 r( A  ^5 @0 [M1 6 4 14 0 NMOS L=0.6U W=170U
M2 7 5 14 0 NMOS L=0.6U W=170U
M3 6 5 15 0 NMOS L=0.6U W=170U
& H0 V0 r8 S% E& _M4 7 4 15 0 NMOS L=0.6U W=170U
" f5 ~. O0 h4 I( R0 v2 U+ ^) NM5 14 18 13 0 NMOS L=0.6U W=277U
M6 15 19 13 0 NMOS L=0.6U W=277U
M7 13 1 0 0 NMOS L=2U W=400U
R1 8 6 900
7 G& H  X* a6 m# y( q% ~' fR2 8 7 1200
3 A; i7 w  T  D* v  p: ]3 o" BR3 4 11 10K
/ a. P; u6 N6 M8 E3 s  u& z0 |2 J5 GR4 5 12 10K
% \( g4 P3 B' R9 o5 kR5 16 18 10K
8 ]# T* B, Y/ j% E& VR6 17 19 10K
# t, A1 v4 F3 D1 J2 rVDD 8 0 5
Vref1 1 0 1.2
( U2 @! {/ S, _' |* A5 k& HVref2 11 0 2.8
Vref3 12 0 2.8
: j8 h* Q' j, ]. s  K; bVref4 16 0 1.8
9 A& g* h& A( K9 T1 U0 i. yVref5 17 0 1.8
9 }5 w+ ?" n; v1 j: t- ]; w3 pC1 9 4 1n
6 R" |) Q! }. K( b2 ~9 wC2 10 5 1n
* J" m$ O  Q- D. N1 Q/ GC3 2 18 1n
C4 3 19 1n
c5 6 8 100p
, |- K; P# R+ S% }! nc6 7 8 100p
VLO1 9 0  SIN(0 0.8 50MEG 0 0 0)
9 Z5 B" U' Q; O3 M5 ~VLO2 10 0  SIN(0 0.8 50MEG 0 0 180)
V1 2 0 SIN(0 30m 50.1MEG 0 0 0)
V2 3 0 SIN(0 30m 50.1MEG 0 0 180)
( B9 S3 Y/ ^; ^5 n.MODEL NMOS NMOS(LEVEL=2 LD=0.250U TOX=365E-10
& H* T. {. J; k+ d: N3 q3 ~+NSUB=2.13818E+16 VTO=0.84898 KP=5.77900E-05
+GAMMA=0.8905 PHI=0.6 U0=610.8 UEXP=0.244555
. y2 p2 m& K8 H1 @+UCRIT=128615 DELTA=2.0298 VMAX=92227.9 XJ=0.250U
+LAMBDA=1.956049E-02 NFS=2.307838E+12 NEFF=1
, {/ r  q7 P% P( c5 o' D) v# i3 d+NSS=1.0E+12 TPG=1.0 RSH=22.730 CGDO=3.54775E-10
& Y8 {9 T% R: a" m+CGSO=3.54775E-10 CGBO=6.354506E-10 CJ=3.7740E-04
( U  L  W+ d  I( ^) S6 w+MJ=0.45890 CJSW=5.1360E-10 MJSW=0.36620 PB=0.800)
4 B4 G0 _- }. E+ q8 n" g.TRAN 0.1u 100u 0 1n
$ l+ C& N: C* _; S.PROBE
.OP
.END
0 _" {5 k5 ^% c! ~8 D
1 h3 ?1 u7 k* G  ~* i
- p$ T; u4 \  T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