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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
Drain Bias = +8 V, I
ds
= 250 mA, 25
°
C
Frequency
MHz
3400
3500
S21 – Gain
dB
12.6
13.0
S11 – Input Return Loss
dB
-15
-28
S22 – Output Return Loss
dB
-7.6
-7.9
Output P1dB
dBm
+30.9
+30.9
Output IP3
(+15 dBm / tone, 1 MHz spacing)
3600
12.9
-12
-9.1
+30.8
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
Frequency (GHz)
3.5
3.6
3.7
3.8
S-Parameters
-30
-20
-10
0
10
20
(
DB(|S[1,1]|)
DB(|S[2,1]|)
DB(|S[2,2]|)
RES
ID=
R=
6.2 Ohm
R2
CAP
ID=
C=
0.3 pF
C10
IND
ID=
L=
5.6 nH
L1
RES
ID=
R=
20 Ohm
R1
CAP
ID=
C=
22 pF
C1
CAP
ID=
C=
DNP pF
C2
IND
ID=
L=
15 nH
L2
CAP
ID=
C=
22 pF
C7
CAP
ID=
C=
1000 pF
C6
CAP
ID=
C=
1e4 pF
C8
CAP
ID=
C=
22 pF
C9
CAP
ID=
C=
0.7 pF
C5
CAP
ID=
C=
33 pF
C3
CAP
ID=
C=
1.1 pF
C4
IND
ID=
L=
2.7 nH
L3
1
2
SUBCKT
ID=
NET=
"FP2189"
Q1
PORT
P=
50 Ohm
Z=
1
PORT
P=
50 Ohm
Z=
2
-Vgg
Vds=8V @ 250 mA
14 mil GETEK
TM
ML200DSS (e
r
= 4.2)
The main microstrip line has a line impedance of 50 O.
Bill of Materials
Part style
Chip capacitor
Chip capacitor
Chip capacitor
Chip capacitor
1000 pF
0.1
μ
F
0.3 pF
5.6 nH
Multilayer chip inductor
15 nH
Multilayer chip inductor
2.7 nH
Multilayer chip inductor
20 O
Chip resistor
6.2 O
Chip resistor
FP2189
WJ 1W HFET
Do Not Place
Ref. Desig.
C1, C7, C9
C3
C4
C5
C6
C8
C10
L1
L2
L3
R1
R2
Q1
C2
Value
22 pF
33 pF
1.1 pF
0.7 pF
Size
0603
0805
0603
0603
0603
1206
0603
0603
0603
0603
0603
0603
SOT-89
Chip capacitor
Chip capacitor
Chip capacitor