WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com

March 2002

Application Circuit: 900 MHz

Frequency (MHz)

600

700

800

900

1000

1100

S-Parameters vs Frequency

20

10

0

-10

-20

-30

Typical Specifications

Frequency

900 MHz

S21 (dB)

13.9 dB

S11 (dB)

-17.4 dB

S22 (dB)

-16.5 dB

IP3

46.2 dBm

Noise Figure

3.1 dB

Bias

9.0 V

GETEK Board Layout

Schematic Diagram

S21

S11

S22

RF OUT

RF IN

9 V

RF

0603

L = 22 nH

1206

C = 1.0

µF

0805

C = 1000pF

0603

C = 56 pF

0603

C = 56 pF

0603

C = 56 pF

By-Pass

DC Block

PIN 3

PIN 1

PIN 2, 4

L1

C1

C1

C1 = 3.3 pF

L1 = 6.8 nH

L1

DC Block

Match

Frequency (MHz)

600

700

800

900

1000

1100

Noise Figure vs Frequency

6

5

4

3

1

2

0

AH102

DC Bias