BFQ67 Datasheet, PDF (9/12 Pages) NXP Semiconductors – NPN 8 GHz wideband transistor

W V_CE = 8 V, I_C = 15 mA , Z₀ = 50
S₁₁
j
j0.5
j2
j0.2
j5
3.0 GHz
0
ÁÁÁÁ_0.2 ÁÁ
2.0
1.0
ÁÁ₁ÁÁÁÁ₂ÁÁÁÁ₅ÁÁ
1
–j0.2
0.3
0.1
–j5
–j0.5
–j2
12 998
–j
S₂₁
Figure 5. Input reflection coefficient
90°
120°
60°
150°
180°
0.1
0.3
1.0
20
3.0 GHz
30°
40 0°
–150°
–30°
13 000
–120°
–60°
–90°
Figure 6. Forward transmission coefficient
BFQ67/BFQ67R/BFQ67W
Vishay Telefunken
S₁₂
90°
120°
60°
150°
180°
2.0
1.0
0.1
3.0 GHz
0.2
30°
0.4 0°
–150°
–30°
12 999
–120°
–60°
–90°
Figure 7. Reverse transmission coefficient
S₂₂
j
j0.5
j2
j0.2
0 ÁÁÁÁ0.2ÁÁÁÁ0.5 ÁÁÁÁ1
3.0 GHz
–j0.2
j5
ÁÁÁÁ _{0.8 5}
1
1.0
–j5
–j0.5
–j2
13 501
–j
Figure 8. Output reflection coefficient
Document Number 85022
Rev. 3, 20-Jan-99
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