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 11 May 2007 ver 1

AP602

High Dynamic Range 4W 28V HBT Amplifier

Typical Device Data

0

0.5

1

1.5

2

2.5

Frequency (GHz)

Gain / Maximum Stable Gain

-10

-5

0

5

10

15

20

25

30

35

40

DB(|S(2,1)|)

DB(GMax())

10.0

5.

0

3.

0

4.

0

-0

.2

-

0

.

4

S11

Swp Max

3GHz

Swp Min

0.01GHz

10.0

5.

0

3.

0

4.

0

-0

.2

-

0

.

4

S22

Swp Max

3GHz

Swp Min

0.01GHz

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 marked 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.

Freq (MHz)

S11 (dB)

S11 (ang)

S21 (dB)

S21 (ang)

S12 (dB)

S12 (ang)

S22 (dB)

S22 (ang)

50

-5.48

-168.66

24.61

162.66

-43.82

67.14

-0.84

-15.48

100

-4.19

-163.72

23.51

148.99

-38.73

56.38

-1.30

-32.29

200

-2.36

-165.46

21.20

127.42

-35.02

38.63

-3.13

-55.32

400

-1.26

-173.46

16.82

105.39

-33.36

20.55

-5.71

-79.41

600

-0.93

-177.48

13.69

94.60

-33.10

12.05

-6.44

-91.66

800

-0.75

-179.37

11.52

87.62

-33.19

7.47

-6.28

-99.86

1000

-0.85

179.64

9.60

80.64

-32.66

16.69

-5.87

-104.18

1200

-0.77

178.55

8.33

75.01

-32.18

8.35

-5.44

-108.62

1400

-0.76

177.13

7.34

69.98

-31.99

4.86

-4.84

-110.75

1600

-0.85

174.34

6.75

64.38

-31.49

1.88

-4.22

-113.24

1800

-1.05

169.72

6.43

57.00

-30.96

-2.23

-3.65

-116.25

2000

-1.30

162.94

6.31

47.79

-30.28

-8.68

-3.15

-120.21

2200

-1.64

154.66

6.25

36.49

-29.50

-16.71

-2.64

-125.79

2400

-2.14

146.42

6.13

23.29

-28.80

-28.08

-2.11

-133.06

2600

-2.67

140.28

5.83

6.95

-28.30

-42.09

-1.57

-142.48

2800

-2.98

139.19

5.31

-11.57

-28.16

-59.43

-1.07

-154.01

3000

-2.77

142.63

4.53

-33.00

-28.51

-80.88

-0.83

-165.99

Device S-parameters are available for download off of the website at: http://www.wj.com