
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
August 2004
ECP052
Watt, High Linearity InGaP HBT Amplifier
Product Information
The Communications Edge
TM
Typical Device Data
S-Parameters (V
cc
= +5 V, I
cc
= 250 mA, T = 25
°
C, unmatched 50 ohm system)
0
0.2
0.4
Frequency (GHz)
0.6
0.8
1
Gain / Maximum Stable Gain
0
5
10
15
20
25
30
35
40
G
DB(|S[2,1]|)
DB(GMax)
0
1
1
-
1
10.0
-
5
5.0
-
-
2
2.0
-
3
3.0
-
4
4.0
0
0
-0.2
0
0
-0.4
0
0
-.
0
0
-8
S11
Swp Max
1GHz
Swp Min
0.05GHz
0
1
1
-
1
10.0
-
5
5.0
-
-
2
2.0
-
3
3.0
-
4
4.0
0
0
-0.2
0
0
-0.4
0
0
-.
0
0
-8
S22
Swp Max
1GHz
Swp Min
0.05GHz
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 – 1000 MHz, with markers placed at 0.2 – 1 GHz in 0.1 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)
S21 (dB)
S21 (ang)
50
-2.72
24.16
133.35
100
-2.25
20.33
124.95
200
-2.31
17.23
119.37
400
-3.08
15.63
98.28
600
-5.79
15.58
69.70
800
-19.72
15.22
25.60
1000
-6.06
11.91
-22.67
1200
-2.34
6.92
-56.59
1400
-1.28
2.28
-78.59
1600
-0.91
-1.17
-96.56
1800
-0.71
-4.40
-112.20
2000
-0.60
-6.78
-128.36
2200
-0.58
-8.70
-146.80
2400
-0.55
-9.87
-169.80
2600
-0.51
-10.59
160.74
2800
-0.51
-11.66
128.82
3000
-0.54
-13.08
95.01
S12 (dB)
-36.72
-35.31
-34.90
-33.62
-32.10
-31.19
-33.26
-38.16
-41.14
-42.62
-40.78
-40.27
-37.79
-39.90
-37.66
-35.78
-35.88
S12 (ang)
29.75
13.96
2.32
-16.36
-37.73
-78.95
-129.67
176.95
132.98
113.65
98.57
74.44
53.03
53.88
41.18
31.88
27.61
S22 (dB)
-2.23
-3.08
-3.32
-3.48
-2.87
-2.27
-1.40
-1.49
-1.96
-2.53
-2.92
-3.29
-3.72
-3.96
-3.25
-1.97
-1.09
S22 (ang)
-102.97
-137.03
-159.63
-172.70
-176.25
-179.74
173.15
165.12
160.84
160.80
157.57
155.77
155.24
158.19
160.80
158.05
149.64
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
.