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

October 2004 Rev 1

ECP103

1 Watt, High Linearity InGaP HBT Amplifier

Product Information

Typical Device Data – ECP103G (Soic-8 Package)

0

0.5

1

1.5

2

2.5

Frequency (GHz)

Gain and 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

5.05GHz

Swp Min

0.05GHz

10.0

5.0

3.

0

4.

0

-0.

2

-0

.4

S22

Swp Max

5.05GHz

Swp Min

0.05GHz

Notes:

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 dashed red line.

The impedance loss plots are shown from 0.05 – 5.05 GHz, with markers placed in 0.5 GHz increments.

Freq (MHz)

S11 (dB)

S11 (ang)

S21 (dB)

S21 (ang)

S12 (dB)

S12 (ang)

S22 (dB)

S22 (ang)

50

-1.23

-177.95

24.07

122.55

-40.25

17.32

-1.26

-130.4

100

-1.01

178.17

19.55

116.55

-39.49

10.63

-1.33

-155.43

200

-1.01

172.63

15.55

112.97

-40.13

15.98

-1.17

-169.92

400

-1.03

163.72

12.03

98.68

-38.83

10.31

-0.93

179.61

600

-1.21

155.20

9.86

85.80

-39.30

-4.249

-0.66

173.43

800

-1.34

146.17

8.11

73.18

-37.70

-2.398

-0.83

168.67

1000

-1.52

136.69

6.92

61.43

-37.73

-16.27

-0.95

166.34

1200

-2.00

126.65

6.13

49.60

-37.14

-14.34

-1.05

165.13

1400

-2.65

115.04

5.80

37.55

-36.23

-28.50

-1.04

164.55

1600

-3.86

97.52

6.01

21.48

-36.45

-46.08

-1.11

166.24

1800

-6.72

86.05

6.17

1.700

-34.63

-68.99

-1.10

164.44

2000

-14.09

94.99

6.15

-23.83

-35.91

-100.68

-1.00

162.35

2200

-9.98

166.89

4.98

-52.92

-36.75

-147.66

-0.77

158.42

2400

-4.27

157.68

2.52

-80.08

-39.10

171.86

-0.79

154.12

2600

-2.13

142.95

-0.42

-100.8

-37.80

123.26

-0.81

149.03

2800

-1.24

130.88

-3.40

-116.44

-38.58

89.55

-0.84

144.09

3000

-0.82

120.68

-6.09

-128.99

-39.37

67.22

-0.92

138.4

Application Circuit PC Board Layout

Circuit Board Material: Top RF layer is .014” Getek, 4 total layers (0.062” thick) for mechanical rigidity

1 oz copper, Microstrip line details: width = .026”, spacing = .026”

The silk screen markers ‘A’, ‘B’, ‘C’, etc. and ‘1’, ‘2’, ‘3’, etc. are used as placemarkers for the input and output tuning shunt

capacitors – C8 and C9. The markers and vias are spaced in .050” increments.