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

September 2004

FP1189

½ - Watt HFET

Product Information

Application Circuit: 870 – 960 MHz (FP1189-PCB900S)

The application circuit is matched for output power.

Typical RF Performance

Frequency

MHz

870

915

960

S21 – Gain

dB

20.9

20.6

19.8

S11 – Input Return Loss

dB

-10

-13

-10

S22 – Output Return Loss

dB

-5.2

-6.0

-7.6

Output P1dB

dBm

+27.5

+27.4

+27.5

Output IP3

(+12 dBm / tone, 1 MHz spacing)

dBm

+39.9

Noise Figure

dB

2.7

2.7

2.6

IS-95 Channel Power

@ -45 dBc ACPR

dBm

+21

RES

R=

ID=

10 Ohm

R2

IND

L=

ID=

12 nH

L4

CAP

C=

ID=

3.9 pF

C13

IND

L=

ID=

47 nH

L1

RES

R=

ID=

20 Ohm

R1

CAP

C=

ID=

68 pF

C1

CAP

C=

ID=

18 pF

C2

CAP

C=

ID=

68 pF

C3

CAP

C=

ID=

1000 pF

C4

CAP

C=

ID=

DNP pF

C10

RES

R=

ID=

0 Ohm

L2

CAP

C=

ID=

DNP pF

C12

IND

L=

ID=

47 nH

L3

CAP

C=

ID=

18 pF

C6

CAP

C=

ID=

68 pF

C7

CAP

C=

ID=

1000 pF

C8

CAP

C=

ID=

1e5 pF

C11

CAP

C=

ID=

DNP pF

C5

CAP

C=

ID=

68 pF

C9

1

2

SUBCKT

NET=

ID=

"FP1189"

Q1

PORT

Z=

P=

50 Ohm

1

PORT

Z=

P=

50 Ohm

2

-Vgg

Vds = 8 V @ 125 mA

14 mil GETEK

The main microstrip line has a line impedance of 50 O.

Bill of Materials

Ref. Desig.

Value

Part style

Size

C1, C3, C7, C9

68 pF

Chip capacitor

0603

C2, C6

18 pF

Chip capacitor

0603

C4, C8

1000 pF

Chip capacitor

0603

C11

0.1

µF

Chip capacitor

1206

C13

3.9 pF

Chip capacitor

0603

L1, L3

47 nH

Multilayer chip inductor

0603

L2

0 O

Chip resistor

0603

L4

12 nH

Multilayer chip inductor

0603

R1

10 O

Chip resistor

0603

R2

20 O

Chip resistor

0603

Q1

FP1189

WJ 0.5W HFET

SOT-89

C5, C12, C10

Do Not Place