求大神 2.4GHz混频器网格修改！！！急等！！！

446701197

MIXER CIRCUIT
1 |$ g* ~* c! f! _! F7 rM1 6 4 14 0 NMOS L=0.6U W=170U
M2 7 5 14 0 NMOS L=0.6U W=170U
) }$ N% x0 a# a' {! DM3 6 5 15 0 NMOS L=0.6U W=170U
M4 7 4 15 0 NMOS L=0.6U W=170U
# Q/ z. q7 Y" T( A8 x" }M5 14 18 13 0 NMOS L=0.6U W=277U
M6 15 19 13 0 NMOS L=0.6U W=277U
0 V# ]+ l' d* E1 n( o4 ?M7 13 1 0 0 NMOS L=2U W=400U
R1 8 6 900
1 [# T  S3 k  B$ ER2 8 7 1200
# U  G" p* h( F# q7 p8 NR3 4 11 10K
R4 5 12 10K
R5 16 18 10K
9 T, ?# k& L: E9 ER6 17 19 10K
4 `. y, Y) ]  @+ K2 v% G& y! q% ]VDD 8 0 5
Vref1 1 0 1.2
Vref2 11 0 2.8
1 v3 K+ m, H" x5 u1 N$ T% kVref3 12 0 2.8
6 W. b) [$ G' F8 E! E& I) s$ o5 DVref4 16 0 1.8
* h: Z# L! `% B$ i. J3 tVref5 17 0 1.8
; q- o+ H, S0 i% e3 P: W+ [C1 9 4 1n
. P: S7 J& M4 M$ ^: qC2 10 5 1n
9 C. ^; D7 b9 M6 Z. J. WC3 2 18 1n
; v; i% p4 [- X3 Q7 T; XC4 3 19 1n
c5 6 8 100p
; c0 x& b; e* _) M% ?# bc6 7 8 100p
( W  ~- E2 [: YVLO1 9 0  SIN(0 0.8 50MEG 0 0 0)
VLO2 10 0  SIN(0 0.8 50MEG 0 0 180)
) p- O7 b$ y. [" E3 Q* q. t2 zV1 2 0 SIN(0 30m 50.1MEG 0 0 0)
V2 3 0 SIN(0 30m 50.1MEG 0 0 180)
.MODEL NMOS NMOS(LEVEL=2 LD=0.250U TOX=365E-10
+NSUB=2.13818E+16 VTO=0.84898 KP=5.77900E-05
; Y- S7 S' o3 v) L" G5 l7 ?$ }+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
+NSS=1.0E+12 TPG=1.0 RSH=22.730 CGDO=3.54775E-10
1 ?6 k, _5 a. [8 }+ `$ l$ H+CGSO=3.54775E-10 CGBO=6.354506E-10 CJ=3.7740E-04
. p( M/ c- {3 r, @. W+MJ=0.45890 CJSW=5.1360E-10 MJSW=0.36620 PB=0.800)
1 w# y9 V; k$ j5 D. z% C" j.TRAN 0.1u 100u 0 1n
, F3 I% e, V: r& M& J% W: q.PROBE
.OP
5 L; R# `& u: L/ ?! H$ h2 M; [.END
/ e: l: r, l. M2 {% T: B

9 `7 i* r% I. b# X1 x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