900MHz的的SiGe ，高IP3 ，
低噪声放大器
MAX2642/MAX2643
表3. MAX2642 / MAX2643典型散射参数
(R
BIAS
= 1.1kΩ ，高增益模式下，V
CC
= + 3.0V ，T
A
= +25°C.)
频率
（兆赫）
500
600
700
800
820
840
860
880
900
920
940
960
980
1000
1100
1200
1300
1400
1500
S11 MAG
0.878512
0.86813
0.834311
0.793611
0.783644
0.774329
0.767016
0.762463
0.753622
0.748921
0.743011
0.737437
0.733572
0.729122
0.710864
0.688941
0.668471
0.655478
0.638124
S11相
（度）
-66.0475
-79.0081
-91.9431
-102.384
-104.098
-105.921
-107.766
-109.461
-111.254
-113.148
-114.988
-116.709
-118.379
-119.87
-127.286
-134.781
-141.275
-146.685
-152.12
S21 MAG
1.445864
2.398259
3.218232
3.544617
3.563583
3.546937
3.529998
3.500193
3.463616
3.419726
3.36768
3.309045
3.261195
3.203007
2.970843
2.789044
2.637086
2.491515
2.352013
S11相
（度）
-114.652
-131.281
-155.869
179.1002
174.4488
170.1934
165.871
161.8438
158.0655
154.6982
151.2749
148.0373
145.4087
142.5148
130.8328
120.5809
111.4044
103.3737
94.07729
S12 MAG
0.011049
0.01977
0.033312
0.038594
0.040112
0.038383
0.04004
0.041375
0.043587
0.043975
0.045614
0.044426
0.046581
0.048343
0.055616
0.061803
0.065281
0.073887
0.077901
S12相
（度）
175.9688
166.0087
149.3926
131.9641
131.6111
128.1902
126.4807
124.4402
123.8527
123.9237
121.0385
118.9012
118.374
116.9249
115.1579
105.9973
100.6171
96.84646
90.34502
S22 MAG
0.882121
0.745577
0.502282
0.223248
0.173175
0.126351
0.086328
0.049822
0.020398
0.024778
0.04661
0.070736
0.092621
0.110062
0.183756
0.238134
0.289607
0.335752
0.381179
S22相
（度）
-73.97408
-100.0799
-129.8978
-160.5161
-166.8809
-173.2415
178.6352
167.1237
128.5957
48.71712
18.5372
10.02515
4.197083
-0.293905
-10.46082
-16.81635
-21.34393
-27.6725
-33.81158
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