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

FP2189

1 - Watt HFET

Product Information

Reference Design: 3400 – 3600 MHz

The application circuit is matched for output power.

Typical RF Performance

Frequency

MHz

3400

3500

3600

S21 – Gain

dB

12.6

13.0

12.9

S11 – Input Return Loss

dB

-15

-28

-12

S22 – Output Return Loss

dB

-7.6

-7.9

-9.1

Output P1dB

dBm

+30.9

+30.9

+30.8

Output IP3

(+15 dBm / tone, 1 MHz spacing)

dBm

+43.8

+43.6

+43.8

The 3.4 – 3.6 GHz Reference Circuit is shown for design purposes only. An

evaluation board is not readily available for this application. The reader can

obtain an FP2189-PCB2140S evaluation board and modify it with the circuit

shown to achieve the performance shown in this reference design.

3.2

3.3

3.4

3.5

3.6

3.7

3.8

Frequency (GHz)

S-Parameters

-30

-20

-10

0

10

20

DB(|S[1,1]|)

DB(|S[2,1]|)

DB(|S[2,2]|)

RES

R=

ID=

6.2 Ohm

R2

CAP

C=

ID=

0.3 pF

C10

IND

L=

ID=

5.6 nH

L1

RES

R=

ID=

20 Ohm

R1

CAP

C=

ID=

22 pF

C1

CAP

C=

ID=

DNP pF

C2

IND

L=

ID=

15 nH

L2

CAP

C=

ID=

22 pF

C7

CAP

C=

ID=

1000 pF

C6

CAP

C=

ID=

1e4 pF

C8

CAP

C=

ID=

22 pF

C9

CAP

C=

ID=

0.7 pF

C5

CAP

C=

ID=

33 pF

C3

CAP

C=

ID=

1.1 pF

C4

IND

L=

ID=

2.7 nH

L3

1

2

SUBCKT

NET=

ID=

"FP2189"

Q1

PORT

Z=

P=

50 Ohm

1

PORT

Z=

P=

50 Ohm

2

-Vgg

Vds=8V @ 250 mA

14 mil GETEK

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

Bill of Materials

Ref. Desig.

Value

Part style

Size

C1, C7, C9

22 pF

Chip capacitor

0603

C3

33 pF

Chip capacitor

0805

C4

1.1 pF

Chip capacitor

0603

C5

0.7 pF

Chip capacitor

0603

C6

1000 pF

Chip capacitor

0603

C8

0.1

µF

Chip capacitor

1206

C10

0.3 pF

Chip capacitor

0603

L1

5.6 nH

Multilayer chip inductor

0603

L2

15 nH

Multilayer chip inductor

0603

L3

2.7 nH

Multilayer chip inductor

0603

R1

20 O

Chip resistor

0603

R2

6.2 O

Chip resistor

0603

Q1

FP2189

WJ 1W HFET

SOT-89

C2

Do Not Place