BFR90 Datasheet, PDF (7/9 Pages) Vishay Siliconix – Silicon NPN Planar RF Transistor

W V_CE = 10 V, I_C = 14 mA , Z₀ = 50
S₁₁
j
j0.5
j2
j0.2
2.0 GHz
j5
0 ÁÁÁÁ0.2 ÁÁÁÁ0.5 ÁÁ0.8 1ÁÁÁÁ2ÁÁÁÁ5ÁÁ 1
0.3
–j0.2
0.1
–j5
–j0.5
–j2
13 506
–j
S₂₁
Figure 5. Input reflection coefficient
90°
120°
60°
150°
180°
2.0 GHz
0.3
0.1 20
30°
40 0°
–150°
–30°
13 508
–120°
–60°
–90°
Figure 6. Forward transmission coefficient
BFR90
Vishay Telefunken
S₁₂
90°
120°
60°
150°
180°
2.0 GHz
1.0
0.1
0.2
30°
0.4 0°
–150°
–30°
13 507
–120°
–60°
–90°
Figure 7. Reverse transmission coefficient
S₂₂
j
j0.5
j2
j0.2
j5
ÁÁÁÁÁÁÁÁÁÁ ₀
0.2 0.5 1
2
5
1
0.5
ÁÁÁÁÁÁÁÁÁÁ_0.1
–j0.2
2.0 GHz
–j5
–j0.5
–j2
13 509
–j
Figure 8. Output reflection coefficient
Document Number 85028
Rev. 3, 20-Jan-99
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