AH118
¼ Watt, High Linearity InGaP HBT Amplifier
2140 MHz Application Circuit (AH118-89PCB2140)
Frequency
Gain
Input Return Loss
Output Return Loss
Output P1dB
Output IP3
(+11 dBm / tone, 1 MHz spacing)
2140 MHz
16.3 dB
15 dB
16 dB
+24.7 dBm
+40.5 dBm
+16.7 dBm
Vcc = +5 V
All passive components are of size 0603 unless otherwise noted.
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.
L3 - the 0 ohm resistor - can be removed (with a thru line) in the
final circuit layout.
ID=C1
C=1e5 pF
size 1206
ID=C3
C=1000 pF
size 0805
DIODE1
5.6 V
ID=C2
C=56 pF
ID=L1
L=18 nH
ID=C4
C=56 pF
ID=L2
C=1.5 pF
ID=L3
R=0 Ohm
ID=C5
C=56 pF
wCDMA Channel Power
(@-45 dBc ACLR, 3GPP, TM 1+64 DPCH)
NET="AH118"
Noise Figure
Device / Supply Voltage
Quiescent Current
4.8 dB
+5 V
160 mA
S21 vs. Frequency
ID=C6
C=1.8 pF
C6 should be placed at the silk screen
marker "F" on the WJ evaluation board.
The capacitor should be placed
32.6° @ 2.14GHz from pin 1 of the AH118
ID=C9
C=1.2 pF
C9 should be placed at the
silk screen marker '4' on the
WJ evaluation board.
The capacitor should be placed
20.5° @ 2.14GHz from pin 3
of the AH118.
ACLR vs. Channel Power
-35
-40
A C L R (d B c )
-45
-50
-55
3GPP W-CDMA, Test Model 1+64 DPCH, ±5 MHz offset, 2140 MHz
18
17
S 2 1 (d B )
16
15
14
+25°C
-40°C
+85°C
13
2110
-60
2130
2150
2170
12
13
14
15
16
17
18
Frequency (MHz)
S11 vs. Frequency
Output Channel Power (dBm)
S22 vs. Frequency
0
+25°C
-40°C
+85°C
0
-5
S 2 2 (d B )
-10
-15
+25°C
-40°C
+85°C
-5
S 1 1 (d B )
-10
-15
-20
2110
2130
2150
2170
-20
2110
2130
2150
2170
Frequency (MHz)
Frequency (MHz)
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
Page 5 of 8 December 2006
WJCI [ WJ COMMUNICATION. INC. ]
