BFS17A Datasheet, PDF (7/11 Pages) NXP Semiconductors – NPN 3 GHz wideband transistor

W V_CE = 8 V, I_C = 25 mA , Z₀ = 50
BFS17A/BFS17AR/BFS17AW
Vishay Semiconductors
S₁₁
j
j0.5
j2
j0.2
j5
2.0 GHz
ÁÁÁÁÁÁ ₀
0.2 ^1.0
ÁÁ₁ÁÁÁÁ₂ÁÁÁÁ₅ÁÁ
1
0.3
–j0.2
0.1
–j5
–j0.5
–j2
13 550
–j
S₂₁
Figure 5. Input reflection coefficient
90°
120°
60°
0.1
150°
30°
0.3
180°
2.0 GHz ¹⁰
20 0°
–150°
–30°
13 552
–120°
–60°
–90°
Figure 6. Forward transmission coefficient
S₁₂
120°
150°
180°
90°
2.0 GHz
1.5
1.0
0.5
0.1
0.08
30°
0.16 0°
–150°
–30°
13 551
–120°
–60°
–90°
Figure 7. Reverse transmission coefficient
S₂₂
j
j0.5
j2
j0.2
j5
0 ^{ÁÁÁÁ}0.2^{ÁÁÁÁ}0.5 ^{ÁÁÁÁ}1
ÁÁÁÁ _{0.8 5}
1
2.0 GHz
0.1
–j0.2
–j5
–j0.5
–j2
13 553
–j
Figure 8. Output reflection coefficient
Document Number 85039
Rev. 4, 20-Jan-99
www.vishay.com
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