Specifications and information are subject to change without notice
WJ Communications, Inc
Phone 1-800-WJ1-4401 FAX: 408-577-6621 e-mail: sales@wj.com Web site: www.wj.com, www.TriQuint.com
Page 2 of 8 January 2008
AH118
Watt, High Linearity InGaP HBT Amplifier
Typical Device Data
S-Parameters (VDevice = +5 V, ICC = 160 mA, 25 °C, unmatched 50 ohm system)
0
0.5
1
1.5
2
2.5
Frequency (GHz)
Gain / Maximum Stable Gain
-10
-5
0
5
10
15
20
25
30
35
40
Ga
in
(
d
B)
DB(|S[2,1]|)
DB(GMax)
0
1.
0
1.
0
-1
.
0
10
.0
10.0
-1
0.
0
5.
0
5.
0
-5
.0
2.
0
2
.
0
-
2
.
0
3.
0
3.
0
-3
.0
4.
0
4.
0
-4
.0
0.
2
0.
2
-0
.2
0.
4
0
.
4
-
0
.4
0.
6
0
.
6
-
0
.
6
0.
8
0
.
8
-
0
.
8
S11
Swp Max
6GHz
Swp Min
0.01GHz
0
1.
0
1.
0
-1
.
0
10
.
0
1 0.0
-1
0.
0
5.
0
5.
0
-5
.0
2.
0
2
.
0
-
2
.
0
3.
0
3.
0
-3
.0
4.
0
4.
0
-4
.0
0.
2
0.
2
-0
.2
0.
4
0
.
4
-0
.4
0.
6
0
.
6
-
0
.
6
0.
8
0
.
8
-
0
.
8
S22
Swp Max
6GHz
Swp Min
0.01GHz
Notes:
The gain for the unmatched device in 50 ohm system is shown as the trace in black color. For a tuned circuit for a particular frequency,
it is expected that actual gain will be higher, up to the maximum stable gain. The maximum stable gain is shown in the dashed red line.
The impedance plots are shown from 50 – 6000 MHz, with markers placed at 0.5 – 6.0 GHz in 0.5 GHz increments.
S-Parameters (VDevice = +5 V, ICC = 160 mA, 25 °C, unmatched 50 ohm system, calibrated to device leads)
Freq (MHz)
S11 (dB)
S11 (ang)
S21 (dB)
S21 (ang)
S12 (dB)
S12 (ang)
S22 (dB)
S22 (ang)
50
-2.69
-173.38
21.74
153.70
-31.02
11.24
-7.02
-148.17
100
-2.16
-177.19
19.63
150.82
-30.31
7.90
-5.57
-162.45
200
-1.91
178.30
18.22
148.19
-29.87
5.01
-5.06
-173.51
400
-1.77
172.47
17.13
135.41
-29.83
4.07
-4.77
177.87
600
-1.60
166.83
15.99
121.91
-29.49
2.79
-4.60
171.65
800
-1.45
161.09
14.97
109.02
-29.18
2.11
-4.44
166.08
1000
-1.40
155.39
13.84
97.28
-28.70
1.64
-4.26
160.40
1200
-1.25
149.59
12.76
86.83
-28.63
-0.09
-4.14
155.01
1400
-1.20
143.79
11.71
76.95
-28.30
-1.34
-3.97
149.63
1600
-1.17
137.57
10.63
68.15
-27.94
-4.47
-4.00
144.03
1800
-1.13
132.05
9.75
59.55
-27.63
-7.00
-3.86
139.02
2000
-1.11
126.72
8.88
52.22
-27.51
-8.43
-3.84
134.24
2200
-1.05
121.50
8.00
45.09
-27.06
-11.00
-3.62
129.30
2400
-0.99
115.58
7.31
37.40
-27.02
-14.19
-3.55
124.42
2600
-0.93
110.41
6.52
30.66
-26.78
-18.24
-3.46
119.42
2800
-0.95
105.30
5.73
23.51
-26.66
-20.10
-3.34
114.26
3000
-0.92
100.11
5.05
17.07
-26.61
-23.28
-3.30
109.29
Device S-parameters are available for download off of the website at: http://www.wj.com
Application Circuit PC Board Layout
Circuit Board Material: .062” total thickness with a .014” Getek top RF layer, 4 layers (other layers added for rigidity),
1 oz copper, Microstrip line details: width = .026”, spacing = .026”
The silk screen markers ‘A’, ‘B’, ‘C’, etc. and ‘1’, ‘2’, ‘3’, etc. are used as placemarkers for the input and output tuning.