BFR91A_08 Datasheet, PDF (5/8 Pages) Vishay Siliconix – Silicon NPN Planar RF Transistor

V_CE = 10 V, I_C = 10 mA, Z₀ = 50 Ω
S₁₁
j
j0.5
j2
j0.2
0
0.2
-j0.2
2.0 GHz
1.0 1
2
0.3
0.1
j5
5
∞
-j5
13 518
-j0.5
-j2
-j
Figure 5. Input Reflection Coefficient
S₂₁
120°
90°
60°
150°
180°
0.1
0.3
2.0 GHz ²⁰
30°
40 0°
-150°
13 520
-120°
-30 °
-60 °
-90 °
Figure 6. Forward Transmission Coefficient
BFR91A
Vishay Semiconductors
S₁₂
120 °
150 °
180 °
90° 2.0 GHz
1.5
60 °
1.0
0.5
0.1
0.08
30 °
0.16 0°
-150°
-30 °
13 519
-120°
-60 °
-90 °
Figure 7. Reverse Transmission Coefficient
S₂₂
j
j0.5
j2
j0.2
j5
0
0.2 0.5 1
2
5
∞
0.3
1.0
0.1
-j0.2
2.0 GHz
-j5
-j0.5
-j2
13 521
-j
Figure 8. Output Reflection Coefficient
Document Number 85031
Rev. 1.6, 08-Sep-08
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