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

November 2004

FP31QF

2-Watt HFET

Product Information

The Communications Edge

TM

FP31QF-PCB2140 Application Circuit Performance Plots

S11 vs. Frequency

-30

-25

-20

-15

-10

-5

0

2110

2130

2150

2170

Frequency (MHz)

-40c

+25c

+85c

S21 vs. Frequency

10

11

12

13

14

15

2110

2130

2150

2170

Frequency (MHz)

-40c

+25c

+85c

S22 vs. Frequency

-30

-25

-20

-15

-10

-5

0

2110

2130

2150

2170

Frequency (MHz)

-40c

+25c

+85c

P1dBvs. Frequency

26

28

30

32

34

36

2110

2130

2150

2170

Frequency (MHz)

-40C

+25C

+85C

Noise Figure vs. Frequency

0

1

2

3

4

5

6

2110

2130

2150

2170

Frequency (MHz)

-40C

+25C

+85C

ACPRvs. Channel Power

3GPPW-CDMA, Test Model 1 + 64 DPCH, ±5 MHz offset

-60

-55

-50

-45

-40

-35

22

23

24

25

26

27

Output Channel Power (dBm)

-40 C

+25C

+85 C

freq =2140 MHz

OIP3 vs. Temperature

40

42

44

46

48

50

-40

-15

10

35

60

85

Temperature (°C)

freq = 2140, 2141 MHz

+18 dBm/ tone

IMDproducts vs. Output Power

fundamental frequency = 2140, 2141 MHz; Temp =+25° C

-100

-80

-60

-40

3

6

9

1215

1821

Output Power (dBm)

IMD_Low

IMD_High

OIP3 vs. Output Power

fundamental frequency =2140, 2141 MHz; Temp =+25° C

30

35

40

45

50

3

6

9

1215

1821

Output Power (dBm)

Output Power / Gain vs. Input Power

frequency = 2140 MHz, Temp = -40° C

4

6

8

10

12

14

2

6

10

14

18

22

26

Input Power (dBm)

16

20

24

28

32

36

Output Power

Gain

Output Power / Gainvs. Input Power

frequency = 2140 MHz, Temp= +25° C

4

6

8

10

12

14

2

6

10

14

18

22

26

Input Power (dBm)

16

20

24

28

32

36

Output Power

Gain

Output Power / Gainvs. Input Power

frequency = 2140 MHz, Temp= +85° C

4

6

8

10

12

14

2

6

10

14

18

22

26

Input Power (dBm)

16

20

24

28

32

36

Output Power

Gain