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

May 2004

AH118

¼ Watt, High Linearity InGaP HBT Amplifier

Product Information

The Communications Edge

TM

2140 MHz Application Circuit (AH118-89PCB2140)

Typical RF Performance at 25

°C

Frequency

2140 MHz

S21 – Gain

16.3 dB

S11 – Input Return Loss

-15 dB

S22 – Output Return Loss

-16 dB

Output P1dB

+24.7 dBm

Output IP3

(+17 dBm / tone, 1 MHz spacing)

+40.5 dBm

Channel Power

(@-45 dBc ACPR, IS-95 9 channels fwd)

+16.7 dBm

Noise Figure

4.8 dB

Device / Supply Voltage

+5 V

Quiescent Current

160 mA

CAP

C=

ID=

100 pF

C4

CAP

C=

ID=

100 pF

C5

CAP

C=

ID=

1 pF

C9

DIODE1

ID=D1

CAP

C=

ID=

56 pF

C3

CAP

C=

ID=

1000 pF

C2

CAP

C=

ID=

1e5 pF

C1

IND

L=

ID=

18 nH

L1

RES

R=

ID=

0 Ohm

L3

CAP

C=

ID=

1.8 pF

C6

CAP

C=

ID=

1.5 pF

L2

SUBCKT

NET=

ID=

"AH118"

U1

PORT

Z=

P=

50 Ohm

1

PORT

Z=

P=

50 Ohm

2

Vcc = +5 V

5.6 V

C6 should be placed at the silk screen

marker "F" on the WJ evaluation board.

All passive components are of size 0603 unless otherwise noted.

C9 should be placed at the

WJ evaluation board.

size 1206

size 0805

The capacitor should be placed

26.2° @ 2.14GHz from pin 3

The capacitor should be placed

32° @ 2.14GHz from pin 1 of the AH118

silk screen marker '5' on the

size 0805

The diode D1 is used as over-voltage protection on the evaluation

boards. It is not specifically required in the final circuit layout in

a system using a DC regulator.

of the AH118.

configuration.

Component R1 is shown in the silkscreen but is not used for this

Gain

13

14

15

16

17

18

2110

2130

2150

2170

Frequency (MHz)

ReturnLoss

-25

-20

-15

-10

-5

0

2110

2130

2150

2170

Frequency (MHz)

S11

S22

ACLRvs. Channel Power

3GPPW-CDMA, Test Model 1+64 DPCH, ±5 MHz offset, 2140 MHz

-60

-55

-50

-45

-40

-35

12

13

14

15

16

17

18

Output Channel Power (dBm)