10

ATF-35143 Typical Noise Parameters

Freq.



opt

GHz

dB

Mag.

Ang.

-

dB

0.5

0.12

0.87

4.7

0.21

20.0

0.9

0.16

0.82

13.2

0.19

19.0

1.0

0.17

0.81

15.3

0.19

18.8

1.5

0.22

0.75

25.9

0.17

17.8

1.8

0.26

0.71

32.3

0.16

17.2

2.0

0.28

0.68

36.5

0.16

16.7

2.5

0.33

0.62

47.7

0.14

15.9

3.0

0.39

0.57

59.6

0.13

15.1

4.0

0.49

0.49

85.4

0.10

13.7

5.0

0.60

0.43

113.6

0.08

12.5

6.0

0.71

0.38

143.7

0.05

11.4

7.0

0.81

0.36

175.6

0.05

10.4

8.0

0.92

0.34

-151.3

0.07

9.6

9.0

1.03

0.34

-117.3

0.12

8.9

10.0

1.13

0.35

-82.7

0.21

8.4

FREQUENCY (GHz)

020

510

15

MSG

MAG

30

25

20

15

10

5

0

-5

Notes:

calculated. Refer to the noise parameter application section for more information.

2. S and noise parameters are measured on a microstrip line made on 0.025 inch thick alumina carrier. The input reference plane is at the end

of the gate lead. The output reference plane is at the end of the drain lead. The parameters include the effect of four plated through via holes

connecting source landing pads on top of the test carrier to the microstrip ground plane on the bottom side of the carrier. Two 0.020 inch

diameter via holes are placed within 0.010 inch from each source lead contact point, one via on each side of that point.

Freq.

MSG/MAG

GHz

Mag.

Ang.

dB

Mag.

Ang.

dB

Mag.

Ang.

Mag.

Ang.

dB

0.50

0.99

-18.76

16.07

6.36

164.73

-32.77

0.023

76.79

0.65

-13.67

24.42

0.75

0.97

-29.12

15.97

6.29

155.93

-29.37

0.034

70.22

0.63

-19.08

22.70

1.00

0.95

-38.28

15.79

6.16

148.37

-27.13

0.044

64.53

0.62

-25.28

21.46

1.50

0.91

-55.52

15.34

5.85

133.87

-24.01

0.063

54.04

0.59

-37.48

19.68

1.75

0.88

-63.78

15.09

5.68

126.95

-22.97

0.071

49.13

0.57

-43.28

19.00

2.00

0.86

-71.79

14.82

5.51

120.22

-22.05

0.079

44.06

0.56

-49.01

18.43

2.50

0.81

-87.55

14.27

5.17

107.29

-20.82

0.091

34.85

0.52

-59.84

17.55

3.00

0.75

-103.15

13.71

4.85

95.00

-19.83

0.102

25.98

0.49

-69.88

16.77

4.00

0.66

-134.65

12.56

4.25

71.95

-18.71

0.116

9.56

0.42

-87.88

15.63

5.00

0.60

-165.16

11.45

3.74

50.50

-18.13

0.124

-5.10

0.35

-105.14

14.79

6.00

0.58

166.12

10.43

3.32

30.44

-17.79

0.129

-19.00

0.29

-122.61

14.11

7.00

0.56

137.25

9.44

2.97

10.91

-17.65

0.131

-32.32

0.23

-141.22

13.55

8.00

0.57

111.11

8.51

2.66

-7.80

-17.59

0.132

-43.61

0.18

-162.07

12.81

9.00

0.60

87.10

7.51

2.38

-26.05

-17.65

0.131

-55.14

0.13

172.01

10.75

10.00

0.64

66.58

6.64

2.15

-43.52

-17.65

0.131

-65.42

0.10

139.11

9.98

11.00

0.68

47.31

5.76

1.94

-61.59

-17.65

0.131

-76.27

0.11

93.44

9.32

12.00

0.71

28.18

4.81

1.74

-79.58

-17.72

0.130

-87.47

0.16

57.88

8.54

13.00

0.74

9.02

3.71

1.53

-96.96

-17.99

0.126

-98.60

0.23

35.32

7.59

14.00

0.77

-4.82

2.61

1.35

-112.95

-18.34

0.121

-107.41

0.29

13.11

6.76

15.00

0.82

-15.65

1.60

1.20

-128.77

-18.56

0.118

-116.63

0.35

-4.62

6.79

16.00

0.82

-28.00

0.51

1.06

-145.23

-18.71

0.116

-126.02

0.42

-19.61

5.79

17.00

0.84

-40.11

-0.55

0.94

-160.01

-18.71

0.116

-136.14

0.49

-29.62

5.54

18.00

0.86

-55.87

-1.68

0.82

-176.05

-19.25

0.109

-146.13

0.55

-41.92

5.05