求大神 2.4GHz混频器网格修改！！！急等！！！

446701197

MIXER CIRCUIT
M1 6 4 14 0 NMOS L=0.6U W=170U
M2 7 5 14 0 NMOS L=0.6U W=170U
0 W! ]4 d% u2 O. C* d9 \M3 6 5 15 0 NMOS L=0.6U W=170U
M4 7 4 15 0 NMOS L=0.6U W=170U
, J# n6 {5 I5 p# QM5 14 18 13 0 NMOS L=0.6U W=277U
5 m& s8 h4 o9 M0 G# c, tM6 15 19 13 0 NMOS L=0.6U W=277U
M7 13 1 0 0 NMOS L=2U W=400U
, D+ j. T3 y3 ]- {R1 8 6 900
9 G) s0 M/ D3 r6 \+ A+ pR2 8 7 1200
R3 4 11 10K
R4 5 12 10K
R5 16 18 10K
8 d! d, p' D( f. `# x) P6 MR6 17 19 10K
7 a( o' M- t! x; j; _VDD 8 0 5
Vref1 1 0 1.2
Vref2 11 0 2.8
" m& V& V9 D# k, G5 D  SVref3 12 0 2.8
* w# Y' P5 J4 r2 Z/ t+ u3 x7 _! Q* qVref4 16 0 1.8
0 z$ @. j2 i8 b9 O/ D+ ?Vref5 17 0 1.8
0 f; q3 T: R4 f8 {& nC1 9 4 1n
C2 10 5 1n
C3 2 18 1n
2 s$ O1 F! j% [& JC4 3 19 1n
4 ?- o. ^* k2 G8 B3 d7 i$ hc5 6 8 100p
c6 7 8 100p
VLO1 9 0  SIN(0 0.8 50MEG 0 0 0)
VLO2 10 0  SIN(0 0.8 50MEG 0 0 180)
V1 2 0 SIN(0 30m 50.1MEG 0 0 0)
; `/ ]$ |& H1 c2 wV2 3 0 SIN(0 30m 50.1MEG 0 0 180)
.MODEL NMOS NMOS(LEVEL=2 LD=0.250U TOX=365E-10
; S' g! T) ^5 h# r; Q& C" D3 c+NSUB=2.13818E+16 VTO=0.84898 KP=5.77900E-05
* t) s6 i# o: f3 e2 r$ U+GAMMA=0.8905 PHI=0.6 U0=610.8 UEXP=0.244555
2 Z$ f6 n% f* p% j+UCRIT=128615 DELTA=2.0298 VMAX=92227.9 XJ=0.250U
+LAMBDA=1.956049E-02 NFS=2.307838E+12 NEFF=1
: v* X+ J8 b  p9 K# N1 N+NSS=1.0E+12 TPG=1.0 RSH=22.730 CGDO=3.54775E-10
' q0 y* }( l2 Y( W6 T5 g& I& @+CGSO=3.54775E-10 CGBO=6.354506E-10 CJ=3.7740E-04
+MJ=0.45890 CJSW=5.1360E-10 MJSW=0.36620 PB=0.800)
/ }0 J& F' I3 o' @7 [# x.TRAN 0.1u 100u 0 1n
.PROBE
9 I0 g- l& D6 j  b. A- ?0 L.OP
; s% C1 j' Y6 s/ J  h8 m/ C; E  L.END

" |; b- [3 A6 n
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