6

ATF-331M4 Typical Scattering Parameters,

Freq.

MSG/MAG

GHz

Mag.

Ang.

dB

Mag.

Ang.

dB

Mag.

Ang.

Mag.

Ang.

dB

0.5

0.82

-91.90

22.10

12.74

127.90

-27.13

0.044

53.30

0.40

-163.10

24.62

0.8

0.79

-119.10

18.85

8.76

112.80

-25.19

0.055

46.70

0.47

-169.67

22.02

1.0

0.78

-132.10

18.06

8.00

106.00

-24.44

0.060

44.70

0.49

-173.83

21.25

1.5

0.76

-151.40

14.75

5.46

93.73

-22.73

0.073

42.73

0.53

177.77

18.74

1.8

0.75

-159.60

13.55

4.76

88.20

-21.72

0.082

42.13

0.53

173.73

17.64

2.0

0.74

-163.60

13.36

4.65

85.00

-21.31

0.086

41.93

0.54

171.27

17.33

2.5

0.72

-170.70

10.33

3.29

77.97

-20.09

0.099

41.33

0.53

165.20

15.21

3.0

0.69

-174.30

9.60

3.02

71.83

-18.12

0.124

40.57

0.55

162.60

13.86

4.0

0.71

163.10

6.62

2.14

53.23

-17.20

0.138

30.30

0.56

138.03

10.77

5.0

0.73

150.00

4.98

1.77

41.60

-16.65

0.147

24.97

0.56

134.30

9.25

6.0

0.71

140.90

3.94

1.57

28.80

-16.08

0.157

17.23

0.57

115.73

7.71

7.0

0.73

123.90

2.92

1.40

14.70

-15.39

0.170

7.10

0.57

109.93

6.97

8.0

0.74

112.90

2.77

1.38

6.70

-15.04

0.177

2.57

0.58

108.90

6.98

9.0

0.76

97.70

2.60

1.35

-4.77

-14.99

0.178

-6.27

0.59

93.03

6.78

10.0

0.79

83.60

2.00

1.26

-18.20

-14.75

0.183

-17.47

0.59

78.30

6.54

11.0

0.86

61.90

0.08

1.01

-32.50

-14.80

0.182

-29.77

0.58

66.00

6.03

12.0

0.87

62.10

-0.71

0.92

-37.90

-14.33

0.192

-33.90

0.65

59.73

5.63

13.0

0.88

51.90

-1.54

0.84

-49.90

-14.89

0.180

-44.67

0.69

49.07

5.20

14.0

0.88

44.60

-2.09

0.79

-58.90

-15.44

0.169

-52.47

0.73

40.13

5.04

15.0

0.91

38.70

-4.00

0.63

-67.70

-15.81

0.162

-60.63

0.75

30.57

4.34

16.0

0.93

33.30

-5.66

0.52

-74.80

-18.71

0.116

-67.27

0.78

24.73

4.04

17.0

0.93

28.40

-5.68

0.52

-80.50

-17.86

0.128

-73.07

0.79

18.67

4.02

18.0

0.92

25.20

-6.58

0.47

-84.00

-17.99

0.126

-77.40

0.81

13.87

3.03

Freq

Γ

opt

Γ

opt

GHz

dB

Mag.

Ang.

dB

0.50

0.37

0.39

0.6

0.07

21.16

0.90

0.41

0.381

26.3

0.06

18.36

1.00

0.41

0.38

32.9

0.06

18.19

1.50

0.46

0.38

63.6

0.05

15.96

1.80

0.48

0.385

80

0.05

15.43

2.00

0.5

0.39

90.1

0.05

14.56

2.50

0.54

0.407

112.8

0.04

13.29

3.00

0.59

0.431

132

0.04

12.18

4.00

0.67

0.492

161.3

0.03

10.4

5.00

0.76

0.565

-179

0.02

8.94

6.00

0.85

0.638

-166

0.02

7.96

7.00

0.93

0.702

-156.9

0.04

7

8.00

1.02

0.747

-148.9

0.07

6.16

9.00

1.11

0.762

-139

0.11

5.8

10.00

1.19

0.737

-124.5

0.18

4.89

Notes:

1. The Fmin values are based on a set of 16 noise figure measurements made at 16 different impedances using an ATN NP5 test system. From these

measurements Fmin is calculated. Refer to the noise parameter measurement section for more information.

2. S and noise parameters are measured on a microstrip line made on 0.010 inch thick alumina carrier assembly. The input reference plane is at the end of

the gate pad. The output reference plane is at the end of the drain pad.

Typical Noise Parameters,

Frequency at 2 V , 40 mA.

MSG

MAG

FREQUENCY (GHz)

020

10

515

40

30

20

10

0

-10

2