¼ Watt, High Linearity InGaP HBT Amplifier
S-Parameters (Vcc = +5 V, I
cc
= 160 mA, T = 25 C, unmatched 50 ohm system)
S11
1.0
EC1089
Gain / Maximum Stable Gain
The Communications Edge
TM
Product Information
Typical Device Data
0 .8
0.
2.
6
0.
0
25
6
0.8
1.0
20
0.2
3.
0
2.
0
4.
0
5.0
Gain (dB)
15
10.0
10.0
10
DB(|S(2,1)|)
DB(GMax())
10.0
0.4
0.6
0.8
1.0
2.0
3.0
4.0
5.0
0.2
0.8
0.2
0.4
0.6
1.0
2.0
3.0
4.0
5.0
0
0
.0
Swp Min
50MHz
-0 .8
-0
.6
-0
Frequency (MHz)
.6
-0.8
.0
-2
0
1000
2000
3000
-0
.4
.4
-0
-2
-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 (Vcc = +5 V, I
DS
= 160 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)
50
-5.84
-157.07
20.78
151.09
-25.69
17.37
-8.29
250
-3.36
-177.43
15.15
141.44
-23.57
6.90
-5.83
500
-3.07
173.83
13.70
131.20
-23.27
4.16
-5.74
750
-2.91
166.79
12.61
117.86
-22.95
2.86
-5.65
1000
-2.76
159.81
11.62
104.53
-22.54
1.07
-5.50
1250
-2.63
153.18
10.65
92.06
-22.35
-1.30
-5.41
1500
-2.55
146.03
9.64
80.38
-21.73
-2.45
-5.40
1750
-2.46
138.90
8.72
69.61
-21.47
-5.13
-5.32
2000
-2.44
132.69
7.92
59.90
-21.06
-7.78
-5.22
2250
-2.39
126.08
7.11
50.30
-20.91
-10.80
-5.19
2500
-2.33
119.55
6.30
41.62
-20.54
-17.68
-5.18
2750
-2.30
112.75
5.66
32.78
-19.62
-19.18
-5.19
3000
-2.27
105.55
5.02
23.64
-19.51
-24.29
-5.11
Device S-parameters are available for download off of the website at: http://www.wj.com
£
-1.0
S22 (ang)
-111.19
-168.30
177.63
169.68
161.89
155.53
148.42
141.74
135.43
128.63
122.48
115.64
108.85
Application Circuit PC Board Layout
Circuit Board Material: .014” Getek, 4 layers (other layers added for rigidity), .062” total thickness, 1 oz copper
Microstrip line details: width = .026”, spacing = .026”
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
-3
.0
-3
0
-4
.0
-5.
0
-5.
-4
0
5
-0.
2
-0.
2
Swp Min
50MHz
-10.0
0.
4
0.2
- 10. 0
.0
.0
¢
Swp Max
3000MHz
S22
Swp Max
3000MHz
0.
4
0
3.
4.
0
5.0
10.0
April 2006
WJCI [ WJ COMMUNICATION. INC. ]
