![](http://datasheet.mmic.net.cn/280000/HBFP-0405-BLK_datasheet_16063159/HBFP-0405-BLK_3.png)
3
HBFP-0405 Typical Scattering Parameters,
V
CE
= 2 V, I
C
= 2 mA, T
C
= 25
°
C
S
11
GHz
Mag
Ang
0.1
0.910
-4.2
0.5
0.889
-21.2
0.9
0.855
-37.6
1.0
0.841
-41.4
1.5
0.774
-60.9
1.8
0.730
-72.0
2.0
0.701
-79.4
2.5
0.634
-96.0
3.0
0.570
-112.3
3.5
0.521
-127.0
4.0
0.477
-141.2
4.5
0.443
-154.7
5.0
0.412
-168.7
5.5
0.386
177.1
6.0
0.372
162.2
6.5
0.369
147.7
7.0
0.366
130.7
7.5
0.370
116.2
8.0
0.387
102.9
8.5
0.405
91.4
9.0
0.421
80.9
9.5
0.437
70.5
10.0
0.454
60.3
Freq.
S
21
Mag
6.665
6.496
6.101
5.993
5.484
5.164
4.964
4.450
3.996
3.620
3.320
3.047
2.829
2.646
2.493
2.371
2.258
2.141
2.042
1.937
1.834
1.753
1.669
S
12
Mag
0.003
0.017
0.030
0.033
0.048
0.055
0.059
0.068
0.073
0.077
0.080
0.082
0.084
0.087
0.089
0.093
0.096
0.100
0.103
0.105
0.109
0.112
0.115
S
22
dB
16.5
16.3
15.7
15.6
14.8
14.3
13.9
13.0
12.0
11.2
10.4
9.7
9.0
8.5
7.9
7.5
7.1
6.6
6.2
5.7
5.3
4.9
4.4
Ang
176.2
160.6
146.0
142.5
125.9
116.8
110.9
97.0
84.7
73.4
62.9
53.6
44.2
34.9
25.6
16.8
8.1
-1.3
-9.8
-18.3
-26.6
-35.2
-43.7
dB
-49.6
-35.6
-30.4
-29.5
-26.4
-25.1
-24.5
-23.4
-22.7
-22.3
-21.9
-21.8
-21.5
-21.3
-21.0
-20.7
-20.4
-20.0
-19.8
-19.5
-19.3
-19.0
-18.8
Ang
88.5
80.5
71.9
69.6
57.5
50.6
46.4
37.0
28.7
21.7
15.6
10.7
6.0
1.6
-2.1
-7.0
-10.7
-14.7
-19.2
-23.6
-27.9
-32.4
-37.0
Mag
0.995
0.982
0.951
0.937
0.880
0.843
0.817
0.758
0.708
0.669
0.634
0.613
0.591
0.571
0.550
0.525
0.496
0.471
0.444
0.425
0.411
0.398
0.385
Ang
-2.2
-10.5
-18.8
-20.9
-30.8
-36.4
-39.8
-47.8
-54.9
-60.9
-66.4
-71.5
-76.4
-80.8
-86.1
-90.5
-95.2
-100.2
-106.7
-113.9
-121.3
-127.7
-133.5
HBFP-0405 Noise Parameters:
V
CE
= 2 V, I
C
= 2 mA
Freq.
GHz
F
min
dB
Γ
opt
R
N
/50
20.9
20.6
19.2
18.5
18.0
16.6
15.6
14.2
13.0
12.1
10.9
10.5
10.4
10.2
11.0
12.0
13.7
15.9
18.6
22.3
26.3
G
a
dB
Mag
Ang
0.9
1.0
1.5
1.8
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
1.07
1.09
1.19
1.25
1.29
1.39
1.48
1.57
1.70
1.78
1.87
2.00
2.10
2.18
2.29
2.35
2.50
2.65
2.76
2.93
2.94
0.569
0.558
0.504
0.474
0.456
0.423
0.391
0.352
0.318
0.290
0.257
0.215
0.179
0.157
0.125
0.116
0.140
0.163
0.191
0.226
0.254
9.3
11.6
22.0
28.7
33.6
48.2
59.3
72.1
83.1
93.9
107.3
118.3
133.7
153.1
-179.2
-154.8
-123.4
-104.1
-89.2
-73.4
-61.4
23.46
22.67
19.64
18.28
17.50
15.91
14.39
13.29
12.29
11.43
10.71
10.03
9.47
8.97
8.50
7.98
7.63
7.21
6.81
6.51
6.16
S and noise parameters are measured
on a microstrip line made on
0.025 inch thick alumina carrier. The
input reference plane is at the end of
the base lead, the output reference
plane is at the end of the collector
lead. S and noise parameters include
the effect of four plated through via
holes connecting emitter landing pads
on the top of test carrier to the
microstrip ground plane on the
bottom side of the carrier. Two
0.020 inch diameter via holes are
placed within 0.010 inch from each
emitter lead contact point, one via on
each side of that point.