![](http://datasheet.mmic.net.cn/330000/FLL21E090IK_datasheet_16397311/FLL21E090IK_3.png)
3
High Voltage - High Power GaAs FET
FLL21E090IK
S-Parameters @V
DS
=28V, I
DS
=700mA, f=1.7 to 3 GHz
S11
S22
2.0GHz
25
Ω
50
Ω
2.2
2.1
2.2
2.1
2.0GHz
0
∞
+10j
+25j
+50j
+100j
+250j
-10j
-25j
-50j
-100j
-250j
100
Ω
10
Ω
S12
S21
0.4
-90°
0.3
8
±180°
Scale for |S
21
|
0°
+90°
S
S
1
|
2.0GHz
6
2.1
2.2
!freq(GHzS11(mag S11(ang) S21(mag S21(ang) S12(mag S12(ang) S22(mag S22(ang)
0.1
0.973
175.6
0.958
161.9
0.2
0.953
171.7
1.370
136.9
0.3
0.934
169.7
1.433
95.6
0.4
0.932
167.0
1.182
61.6
0.5
0.940
164.2
0.890
33.5
1
0.947
147.8
0.390
-31.8
1.1
0.952
143.8
0.381
-41.2
1.2
0.958
139.8
0.394
-50.1
1.3
0.948
135.8
0.423
-59.3
1.4
0.951
131.5
0.480
-69.3
1.5
0.952
126.7
0.571
-80.6
1.6
0.935
121.3
0.715
-93.2
1.7
0.924
114.9
0.952
-108.0
1.8
0.896
107.1
1.356
-126.3
1.9
0.866
96.5
2.101
-150.4
1.95
0.832
89.8
2.692
-165.2
2
0.775
80.9
3.492
176.7
2.05
0.675
67.3
4.599
153.2
2.1
0.478
46.0
5.845
123.1
2.11
0.422
40.4
6.094
115.8
2.12
0.360
34.3
6.273
108.9
2.13
0.293
27.1
6.451
101.3
2.14
0.222
18.7
6.549
93.5
2.15
0.149
6.2
6.559
85.9
2.16
0.083
-18.5
6.563
78.2
2.17
0.052
-87.3
6.512
70.6
2.18
0.100
-139.9
6.332
63.2
2.19
0.166
-156.8
6.214
56.0
2.2
0.228
-166.8
6.005
49.2
2.25
0.479
166.4
4.860
18.9
2.3
0.624
151.2
3.765
2.35
0.710
141.0
2.960
-22.9
2.4
0.764
133.4
2.395
-38.2
2.5
0.822
121.6
1.673
-62.5
2.6
0.848
112.1
1.293
-83.3
2.7
0.858
103.8
1.066
-101.3
2.8
0.860
96.0
0.936
-119.0
2.9
0.856
88.1
0.866
-137.8
3
0.846
78.8
0.849
-157.1
0.000
0.001
0.003
0.003
0.002
0.003
0.003
0.004
0.004
0.004
0.005
0.007
0.008
0.010
0.012
0.014
0.016
0.017
0.020
0.020
0.020
0.020
0.020
0.021
0.020
0.020
0.019
0.020
0.019
0.016
0.015
0.015
0.014
0.013
0.011
0.011
0.011
0.012
0.012
34.8
94.1
50.0
12.2
3.7
18.2
14.1
7.2
7.5
13.5
-1.2
-19.0
-35.4
-48.1
-78.7
-102.2
-121.5
-152.8
161.6
151.9
141.1
130.2
123.6
111.2
97.2
88.0
72.8
69.5
53.5
0.711
0.876
0.931
0.922
0.908
0.928
0.921
0.922
0.921
0.910
0.893
0.857
0.820
0.776
0.692
0.631
0.553
0.454
0.352
0.338
0.327
0.323
0.325
0.333
0.347
0.364
0.385
0.403
0.425
0.513
0.577
0.626
0.665
0.723
0.767
0.790
0.818
0.825
0.829
-168.4
-175.4
174.7
167.3
162.4
137.9
132.4
126.4
120.0
112.6
104.1
94.5
83.3
69.2
50.7
38.1
21.5
-3.0
-45.7
-57.6
-70.7
-84.5
-98.7
-112.3
-125.6
-137.7
-148.7
-158.2
-167.4
160.9
141.9
127.9
116.9
98.1
80.6
63.4
45.2
25.3
8.9
-4.5
-20.0
-45.9
-65.6
-95.6
-118.3
-142.2
-154.2
-174.4
168.1
3.5