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
) I) B* H% R3 e2 c& ]  r9 N9 X0 LM3 6 5 15 0 NMOS L=0.6U W=170U
9 f/ f% I! s* s  Z" r' `8 sM4 7 4 15 0 NMOS L=0.6U W=170U
' e) M5 Q9 _3 P5 KM5 14 18 13 0 NMOS L=0.6U W=277U
M6 15 19 13 0 NMOS L=0.6U W=277U
/ z% h7 u6 p/ R5 B* gM7 13 1 0 0 NMOS L=2U W=400U
R1 8 6 900
R2 8 7 1200
R3 4 11 10K
# q; R) ?5 D7 I* kR4 5 12 10K
* G2 @8 f& \* J% G7 [+ PR5 16 18 10K
( {2 U3 ~: y! sR6 17 19 10K
, [4 M' y" @6 b0 yVDD 8 0 5
Vref1 1 0 1.2
Vref2 11 0 2.8
; i' _0 n/ [, S4 yVref3 12 0 2.8
Vref4 16 0 1.8
; q- F$ j, H5 h& l, K% R3 tVref5 17 0 1.8
C1 9 4 1n
C2 10 5 1n
7 b2 N; r+ j  c: ]. y5 RC3 2 18 1n
, @0 p  K6 |9 J: w% OC4 3 19 1n
2 ?( `7 L2 P2 h# n. Z( P9 F+ D1 gc5 6 8 100p
6 F" P5 ~+ \5 T: _9 K) ec6 7 8 100p
7 c2 D9 ]+ T# p) {. B: _* wVLO1 9 0  SIN(0 0.8 50MEG 0 0 0)
  x/ _$ L, _5 ]- s6 s# _: H3 R/ CVLO2 10 0  SIN(0 0.8 50MEG 0 0 180)
3 t% `  L* B( s0 }% \1 KV1 2 0 SIN(0 30m 50.1MEG 0 0 0)
V2 3 0 SIN(0 30m 50.1MEG 0 0 180)
8 u: @# S( Y) P9 i" K8 y.MODEL NMOS NMOS(LEVEL=2 LD=0.250U TOX=365E-10
( A3 G# z* o  H) Y% g+NSUB=2.13818E+16 VTO=0.84898 KP=5.77900E-05
+GAMMA=0.8905 PHI=0.6 U0=610.8 UEXP=0.244555
+UCRIT=128615 DELTA=2.0298 VMAX=92227.9 XJ=0.250U
+LAMBDA=1.956049E-02 NFS=2.307838E+12 NEFF=1
' j- |% h# M/ ]% P+NSS=1.0E+12 TPG=1.0 RSH=22.730 CGDO=3.54775E-10
+CGSO=3.54775E-10 CGBO=6.354506E-10 CJ=3.7740E-04
. {$ X6 L- l! f& d0 K7 z8 l  z" M+MJ=0.45890 CJSW=5.1360E-10 MJSW=0.36620 PB=0.800)
.TRAN 0.1u 100u 0 1n
! r  U, ~8 W9 s0 n* f1 X! n) R.PROBE
6 n- @3 h% p" x' _.OP
.END
& d. [0 Y& a* t, c! |
* f; A1 ^* Y/ ]7 i- 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