![](http://datasheet.mmic.net.cn/370000/FP31QF_datasheet_16689905/FP31QF_2.png)
WJ Communications, Inc
Phone 1-800-WJ1-4401
FAX: 408-577-6621
e-mail: sales@wj.com
Web site: www.wj.com
Specifications and information are subject to change without notice
November 2004
FP31QF
2-Watt HFET
Product Information
The Communications Edge
TM
Typical Device Data
S-Parameters (V
DS
= +9 V, I
DS
= 450 mA, T = 25
°
C, calibrated to device leads)
0
0.5
1
1.5
2
2.5
3
Frequency (GHz)
S21, Maximum Stable Gain vs. Frequency
0
10
20
30
S
DB(|S[2,1]|)
DB(MSG)
0
1
1
-
1
10.0
-
5
5.0
-
-
2
20
-
3
3.0
-
4
4.0
0
0
-0.2
0
0
-0.4
0
0
-.
0
0
-8
S11
Swp Max
6GHz
Swp Min
0.01GHz
0
1
1
-
1
10.0
-
5
5.0
-
-
2
20
-
3
3.0
-
4
4.0
0
0
-0.2
0
0
-0.4
0
0
-.
0
0
-8
S22
Swp Max
6GHz
Swp Min
0.01GHz
Note:
Measurements were made on the packaged device in a test fixture with 50 ohm input and output lines.
The S-parameters shown are the de-embedded data down to the device leads and represents typical performance of the device.
Freq (MHz)
S11 (mag)
S11 (ang)
S21 (mag)
50
0.985
-21.82
24.458
250
0.936
-88.63
17.968
500
0.913
-128.61
11.520
750
0.899
-148.43
8.132
1000
0.900
-160.54
6.225
1250
0.900
-169.15
4.988
1500
0.900
-176.01
4.125
1750
0.905
178.53
3.504
2000
0.909
172.99
3.046
2250
0.910
168.27
2.656
2500
0.914
164.14
2.349
2750
0.914
160.09
2.117
3000
0.915
156.76
1.897
3250
0.922
153.22
1.721
3500
0.926
149.22
1.563
3750
0.941
144.67
1.433
4000
0.943
140.45
1.318
Device S-parameters are available for download off of the website at: http://www.wj.com
Load-Pull Data at 1.96 and 2.14 GHz
(V
ds
= 8 V, I
ds
= 500 mA, 25°C, Z
S
= 50
, calibrated to device pins)
Freq (GHz)
ZS (
)
ZL (
)
1.96
5 + j0
8 - j2
2.14
5 - j2
8 - j3
P1dB
Swp Max
1.96GHz
1.96 GHz
r 8 Ohm
x -2 Ohm
S21 (ang)
166.25
128.52
104.42
90.03
79.35
70.50
62.56
55.28
47.93
41.65
34.95
28.98
23.31
17.69
11.97
6.20
0.98
S12 (mag)
0.006
0.020
0.025
0.026
0.026
0.025
0.025
0.024
0.023
0.022
0.021
0.021
0.022
0.026
0.034
0.058
0.102
S12 (ang)
76.01
43.34
22.03
10.75
4.56
0.35
-2.975
-4.91
-5.54
-4.44
-1.12
5.24
12.75
23.36
32.54
34.08
23.74
S22 (mag)
0.096
0.329
0.431
0.465
0.490
0.514
0.532
0.560
0.587
0.606
0.629
0.656
0.671
0.695
0.720
0.734
0.768
S22 (ang)
-110.34
-135.13
-151.01
-158.3
-162.14
-163.92
-166.86
-168.72
-170.95
-172.86
-175.13
-177.13
-179.41
177.36
175.05
171.21
165.82
Gain (dB)
18.5
18.0
P1dB (dBm) OIP3 (dBm)
+34
+34
PAE (%)
49
50
+48
+48
Output IP3
0
1
1
-
1
10.0
-
5
5.0
-
-
2
20
-
3
3.0
-
4
4.0
0
0
-0.2
0
0
-0.4
0
0
-.
0
0
-8
Swp Min
1e-009GHz
33
32
31
30
29
28
27
0
1
1
-
1
10.0
-
5
5.0
-
-
2
2.0
-
3
3.0
-
4
4.0
0
48
0
-0.2
0
0
-0.4
0
0
-.
0
0
-8
Swp Max
1.96GHz
Swp Min
1e-009GHz
1.96 GHz
r 8 Ohm
x -2 Ohm
47
46
45
44
43
42
41
P1dB max (1.96 GHz) = +34 dBm at Z
L
= 8 - j2
OIP3 max (1.96 GHz) = +48 dBm at Z
L
= 8 - j2
1
2
3
4
5
6
1
2
3
4
5
6