Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
1
Specifications subject to change without notice. 3/99A
Four-Way 0 Power Splitter
Combiner 1.711.99 GHz
Features
s
Low Cost
s
Low Profile
s
Available in Small MSOP-8 Package
s
Tape & Reel
PD4W18-59
Description
The PD4W18-59 is a monolithic four-way in-phase hybrid
junction tuned for the 1.711.99 GHz band. It offers low
loss, high isolation, good input/output matching and
exceptional phase/amplitude balance. It is available in the
MSOP-8 leaded surface mount package.
Parameter
Min.
Typ.
Max.
Unit
Frequency
1.71
1.99
GHz
Insertion Loss Less 6 dB Split
0.7
1.2
dB
Isolation
20
25
dB
Input VSWR
1.3:1
1.6:1
Output VSWR
1.3:1
1.6:1
Amplitude Balance
.3
.4
dB
Phase Balance
5.0
8.0
Deg.
Electrical Specifications at 25C
Block Diagram
IN/SUM
Port 2
Port 3
Port 1
Port 4
12
3
4
87
6
5
IN/SUM
GND
GND
Port 2
Port 1
Port 4
Port 3
GND
4W18
Pin Out
Four-Way 0 Power Splitter Combiner 1.711.99 GHz
PD4W18-59
2
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
Specifications subject to change without notice. 3/99A
Frequency (GHz)
I
n
s
e
r
t
i
o
n
L
o
s
s
(
d
B
)
Insertion Loss vs. Frequency
-6.40
-6.60
-6.80
-7.00
-7.20
-7.40
1.71
1.76
1.82
1.94
1.88
1.99
Port 3
Port 4
Port 1
Port 2
Frequency (GHz)
I
s
o
l
a
t
i
o
n
(
d
B
)
Isolation vs. Frequency
0
-5
-10
-15
-20
-25
-30
-35
-40
Port 34
Port 23
Port 14
Port 24
Port 12
Port 13
1.71
1.76
1.82
1.94
1.88
1.99
Frequency (GHz)
A
m
p
l
i
t
u
d
e
B
a
l
a
n
c
e
(
d
B
)
Amplitude Balance vs. Frequency
1.0
0.5
-0.5
-1.0
0.0
Port 34
Port 12
Port 24
Port 14
Port 13
Port 23
1.71
1.76
1.82
1.94
1.88
1.99
Frequency (GHz)
I
n
p
u
t
V
S
W
R
(
:
1
)
Input VSWR vs. Frequency
1.6
1.5
1.4
1.3
1.2
1.1
1.0
1.71
1.76
1.82
1.94
1.88
1.99
Frequency (GHz)
P
h
a
s
e
B
a
l
a
n
c
e
(
D
e
g
.
)
Phase Balance vs. Frequency
10
8
6
4
2
0
-2
-4
-6
-8
-10
1.71
1.76
1.82
1.94
1.88
1.99
Port 23
Port 24
Port 34
Port 12
Port 14
Port 13
Frequency (GHz)
O
u
t
p
u
t
V
S
W
R
Output VSWR vs. Frequency
1.5
1.4
1.3
1.2
1.1
1.0
1.71
1.76
1.82
1.94
1.88
1.99
Port 3
Port 2
Port 1
Port 4
Typical Performance Data
Four-Way 0 Power Splitter Combiner 1.711.99 GHz
PD4W18-59
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
3
Specifications subject to change without notice. 3/99A
Characteristic
Value
Input Power
1
+1.5 W CW
Input Power
2
+0.375 CW
Operating Temperature
-40C to +85C
Storage Temperature
-60C to +150C
Absolute Maximum Ratings
Material is 10 mil FR4
,,,,
,,,,
,,,
,,,
,,,
,,,
,,,
0.150
0.024 TYP.
0.018 TYP.
0.010
TYP.
0.020
DIA. VIA
0.010
DIA. VIA
,,,,,
,,,,,
,,,,,
,,,,,
,,,,
,,,,
,,,,
,,,,
,,,,
,,,,
4
W
1
8
Board Layout
1. When used as a power divider with a 2.0:1 Max. VSWR on all ports.
2. When used as a power combiner with 2.0:1 Max. VSWR on all ports.
MSOP-8
0.012 (0.30 mm)
PIN 1
PIN 1
INDICATOR
+ 0.006 (0.15 mm)
7.0
TYP.
0.038 (0.95 mm)
0.030 (0.75 mm)
0.017
(0.43 mm)
8.0
MAX.
0.028 (0.70 mm)
0.016 (0.40 mm)
0.007 (0.18 mm)
0.005 (0.12 mm)
0.006 (0.15 mm)
0.002 (0.05 mm)
- 0.002 (0.05 mm)
0.0256 (0.65 mm) TYP.
0.118 (3.00 mm)
0.004 (0.1 mm)
SQ.
0.193 (4.90 mm)
REF.
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