�½ Watt, High Linearity InGaP HBT Amplifier
S-Parameters (V
cc
= +5 V, I
cc
= 250 mA, T = 25 C T = 25 C, calibrated to device leads)
35
30
25
G ain (dB)
20
10.0
0.2
0.4
0.6
0.8
1.0
2.0
3.0
4.0
0.2
AH115
The Communications Edge
TM
Product Information
¢
Typical Device Data
0. 8
6
0.
6
0.
Gain and Maximum Stable Gain
0.
4
Swp Max
5.05GHz
2.
0
1.0
0.8
1.0
0
3.
0
4.
10.0
15
10
5
0
0
0.5
1
1.5
Frequency (GHz)
2
2.5
5.0
0
10.0
0.2
0.4
0.6
0.8
1.0
2.0
3.0
4.0
5.0
0
.4
-0
.4
-0
.
-2
-0
.6
-0
.6
.0
-2
0
-0.8
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 return loss plots are shown from 50 – 5050 MHz, with markers placed at 0.5 – 5.05 GHz in 0.5 GHz increments.
S-Parameters (V
cc
= +5 V, I
cc
= 250 mA, T = 25 C, unmatched 50 ohm system, calibrated to device leads)
Freq (MHz)
S11 (dB)
S11 (ang)
S21 (dB)
S21 (ang)
£
Swp Min
0.05GHz
-0 .8
-1.0
S12 (dB)
S12 (ang)
S22 (dB)
-1.0
S22 (ang)
50
100
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
-2.11
-1.59
-1.51
-1.45
-1.58
-1.78
-1.96
-2.46
-3.30
-4.70
-8.15
-19.01
-9.59
-4.09
-1.99
-1.12
-0.72
-172.90
-178.94
173.71
163.84
153.68
144.31
134.21
123.44
111.21
92.57
78.58
93.29
177.56
159.30
141.65
127.57
116.11
25.10
21.15
17.75
15.23
13.69
12.77
11.94
11.36
11.17
11.39
11.64
11.51
10.35
7.87
4.95
1.97
-0.88
133.84
126.67
124.19
111.50
98.94
84.57
69.70
55.57
40.93
22.80
1.64
-25.24
-55.97
-83.78
-105.90
-122.86
-136.93
-36.03
-35.22
-34.29
-34.45
-33.58
-32.84
-32.77
-31.79
-31.12
-30.30
-29.47
-29.31
-30.51
-32.59
-33.96
-34.68
-35.64
31.44
15.04
7.30
-2.16
-2.99
-12.80
-18.76
-30.73
-45.14
-61.92
-83.99
-112.79
-150.45
177.62
137.14
109.27
81.83
-2.06
-2.73
-2.80
-2.73
-1.96
-1.68
-1.85
-2.14
-2.30
-2.52
-2.43
-1.84
-1.22
-1.06
-1.07
-1.19
-1.44
-105.55
-138.75
-160.44
-174.00
-179.13
172.00
166.98
164.05
163.07
164.84
164.25
162.38
155.68
147.58
139.74
132.15
125.05
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, 4 - 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 5
-4
.0
-5 .
0
-3
.0
-4
.0
-5.
0
2
-0.
2
-0 .
Sw p Min
0.05GHz
-10.0
0. 2
0
5.
0.
4
DB(GMax)
DB(|S[2,1]|)
2.
0
-1 0.0
-3
.0
¢
S11
S22
Sw p Max
5.05GHz
0
3.
0
4.
5. 0
10 .0
April 2006