Freescale Semiconductor, Inc.
+j1
+j0.5
+j2
+j0.2
1.0
V
= 6.0 V
= 5.0 mA
CE
I
C
— AREA OF INSTABILITY
21
20
19
f (GHz) NF OPT (dB) ΓMS NF OPT
0.5 1.0 0.43 30°
R
K
N
18
0.58
2.0
–j0.2
18
3.0
4.0
5.0
–j2
–j0.5
–j1
Figure 16. MMBR941LT1, T3 Constant Gain and Noise Figure Contours
(f = 0.5 GHz)
+j1
+j0.5
+j2
INPUT
OUTPUT
+j0.2
V
= 6.0 V
= 5.0 mA
CE
I
C
1.5
— AREA OF INSTABILITY
16
f (GHz) NF OPT (dB) ΓMS NF OPT
1.0 1.5 0.22 64°
R
K
N
15
13
0.93
2.0
14
–j0.2
13
3.0
4.0
5.0
–j2
–j0.5
–j1
Figure 17. MMBR941LT1, T3 Constant Gain and Noise Figure Contours
(f = 1.0 GHz)
MOTOROLA RF DEVICE DATA
MMBR941 MRF947 SERIES
11
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