AH312
40
35
30
25
Gain (dB)
20
15
10
The Communications Edge
TM
Product Information
2 Watt, High Linearity InGaP HBT Amplifier
S-Parameters (V
CC
= +5 V, I
CC
= 800 mA, T = 25
°C,
calibrated to device leads)
Typical Device Data
S11
1.0
0.8
1.0
2.
0
2.
0
DB(|S[2,1]|)
DB(GMax)
0.
4
6
0.
6
0.
0.8
Gain / Maximum Stable Gain
S22
Swp Max
3GHz
Swp Max
3GHz
0
3.
0
4.
10.0
10.0
0.2
0.4
0.6
0.8
1.0
2.0
3.0
4.0
5.0
.0
-2
-0
.6
-0
.6
0
0.5
-0.8
-0.8
-1.0
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 – 3000 MHz, with markers placed at 0.5 – 3.0 GHz in 0.5 GHz increments.
S-Parameters (V
CC
= +5 V, I
CC
= 800 mA, T = 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
100
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
-0.86
-0.64
-0.68
-0.76
-0.93
-1.15
-1.50
-2.39
-4.47
-11.96
-8.66
-2.76
-1.21
-0.68
-0.43
-0.32
-0.29
-178.06
178.18
172.85
164.33
155.56
146.04
134.58
121.66
104.01
86.06
-179.11
159.91
142.90
130.93
121.91
114.61
108.16
27.55
22.16
16.13
10.61
7.46
5.78
4.87
4.74
5.33
5.96
4.41
0.53
-3.21
-7.27
-10.41
-13.28
-15.94
113.72
98.81
89.06
77.31
67.94
57.62
46.90
32.96
14.01
-17.55
-56.78
-89.86
-107.99
-123.14
-134.93
-143.22
-149.93
-45.75
-45.46
-42.65
-43.96
-41.17
-41.65
-40.36
-40.22
-38.97
-38.96
-39.35
-43.55
-41.56
-42.46
-39.71
-40.99
-39.65
30.91
12.80
6.09
4.69
6.70
-5.78
-7.84
-16.51
-48.82
-86.32
-144.53
145.94
104.25
73.64
64.28
58.20
48.40
-0.38
-0.38
-0.48
-0.48
-0.61
-0.66
-0.71
-0.80
-0.76
-0.60
-0.52
-0.41
-0.54
-0.68
-0.73
-0.73
-0.79
-1.0
1
1.5
Frequency (GHz)
2
2.5
.0
-2
-10
.4
-0
.4
-0
Swp Min
0.05GHz
-130.98
-157.30
-172.51
177.51
173.63
170.49
169.31
168.22
167.91
170.63
167.41
164.50
160.11
157.84
154.66
151.14
147.52
Device S-parameters are available for download off of the website at: http://www.wj.com
Application Circuit PC Board Layout
Circuit Board Material: .014” Getek, single layer, 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
shunt capacitors – C8 and C9. The markers and vias are spaced in .050” increments.
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
Page 2 of 7 March 2006
-3
.0
-3
.0
-5
Swp Min
0.05GHz
-4
.0
-5.
0
-4
.0
-5.
0
0
2
-0.
2
-0.
-10.0
-10.0
5
0
10.0
0.2
0.4
0.6
0.8
1.0
2.0
3.0
4.0
5.0
0
0.2
5.0
0.
4
0
3.
0
4.
5.0
0.2
10.0
WJCI [ WJ COMMUNICATION. INC. ]
