3SK318 Datasheet, PDF (6/8 Pages) Hitachi Semiconductor – Silicon N-Channel Dual Gate MOS FET UHF RF Amplifier

3SK318
S Parameter
Freq.
(MHz)
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
S11
MAG.
ANG.
1.000
–2.8
0.998
–5.8
0.997
–9.1
0.994
–12.2
0.994
–15.1
0.986
–18.5
0.978
–21.3
0.972
–24.1
0.969
–27.0
0.954
–29.7
0.955
–32.8
0.941
–35.7
0.932
–38.3
0.924
–41.3
0.919
–44.1
0.905
–46.9
0.896
–49.2
0.884
–52.4
0.880
–54.7
0.866
–57.7
S21
MAG.
ANG.
2.41
176.3
2.41
171.9
2.39
167.6
2.38
163.7
2.37
159.8
2.35
155.5
2.30
151.4
2.28
147.6
2.26
143.6
2.23
140.0
2.19
135.9
2.17
132.2
2.14
128.6
2.09
125.0
2.07
121.5
2.03
117.9
2.00
114.7
1.96
110.4
1.93
107.1
1.89
103.8
(V_DS = 3.5V, V_G2S = 3V, I_D = 10mA, Zo = 50Ω)
S12
S22
MAG.
ANG.
MAG.
ANG.
0.00068
89.1
0.999
–2.2
0.00176
88.5
0.996
–4.5
0.00223
80.7
0.996
–6.7
0.00303
76.6
0.994
–8.7
0.00365
79.1
0.991
–11.0
0.00414
75.4
0.988
–13.2
0.00484
75.0
0.983
–15.3
0.00533
78.0
0.980
–17.4
0.00588
71.6
0.976
–19.6
0.00617
69.5
0.971
–21.7
0.00666
71.5
0.966
–23.7
0.00672
70.6
0.960
–25.6
0.00694
69.0
0.955
–27.8
0.00709
71.4
0.948
–29.9
0.00689
69.0
0.942
–31.8
0.00699
68.9
0.937
–33.8
0.00644
74.2
0.930
–35.8
0.00633
75.5
0.923
–37.6
0.00585
77.8
0.917
–39.8
0.00605
82.1
0.910
–41.9
Rev.2.00 Aug 10, 2005 page 6 of 7