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
Directional Coupler 1.421.66 GHz
Features
s
Low Cost
s
Low Profile
s
Available in Small SOT-6 Lead Package
s
Tape & Reel
DC15-73
Description
The DC15-73 is a monolithic directional coupler tailored
to the 1.421.66 GHz band. It offers low loss, good
isolation, good input/output matching and exceptional
coupling repeatability. It is available in the SOT-6 lead
surface mount package.
Parameter
Min.
Typ.
Max.
Unit
Frequency
1.42
1.66
GHz
Insertion Loss
0.2
0.3
dB
Isolation
30
34
dB
Input VSWR
1.1:1
1.3:1
Output VSWR
1.1:1
1.3:1
Coupling
19.4
18.4
17.4
dB
Coupled Port VSWR
1.1:1
1.3:1
Electrical Specifications at 25°C
IN
GND
COUPLED
OUT
GND
GND
12
3
65
4
DC15
Pin Out
Out
Coupled
In
Block Diagram
Directional Coupler 1.421.66 GHz
DC15-73
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
-0.5
-0.4
-0.3
-0.2
-0.1
-0.0
I
n
s
e
r
t
i
o
n
L
o
s
s
(
d
B
)
Insertion Loss vs. Frequency
1.40
1.45
1.50
1.55
1.60
1.65
1.70
Frequency (GHz)
1.40
1.45
1.50
1.55
1.60
1.65
1.70
Frequency (GHz)
-40
-30
-20
-10
0
I
s
o
l
a
t
i
o
n
(
d
B
)
Isolation vs. Frequency
1.40
1.45
1.50
1.55
1.60
1.65
1.70
Frequency (GHz)
1.0
1.1
1.2
1.3
1.4
1.5
O
u
t
p
u
t
V
S
W
R
Output VSWR vs. Frequency
1.40
1.45
1.50
1.55
1.60
1.65
1.70
Frequency (GHz)
1.0
1.1
1.2
1.3
1.4
1.5
C
o
u
p
l
e
d
P
o
r
t
V
S
W
R
Coupled Port VSWR vs. Frequency
1.40
1.45
1.50
1.55
1.60
1.65
1.70
Frequency (GHz)
1.0
1.1
1.2
1.3
1.4
1.5
I
n
p
u
t
V
S
W
R
Input VSWR vs. Frequency
1.40
1.45
1.50
1.55
1.60
1.65
1.70
Frequency (GHz)
-22
-21
-20
-19
-18
-17
-16
C
o
u
p
l
i
n
g
(
d
B
)
Coupling vs. Frequency
Typical Performance Data
Directional Coupler 1.421.66 GHz
DC15-73
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
4.0 W CW
Operating Temperature
-40°C to +85°C
Storage Temperature
-65°C to +150°C
Absolute Maximum Ratings
1. When operating with a 2.0:1 maximum VSWR on all ports.
Recommended Board Layout
Material is 10 mil FR4
,,,,,,
,,,,,,
,,,,,,
,,,,
,,,,
,,,,
,,,,
,,,,
,,,,
,,,
,,,
,,,
,,,,,,
,,,,,,
,,,,,,
,,,,,,
,,,,,,
,,,,,,
,
y
0.075
0.015 TYP.
0.020 DIA.
VIA 3 PLACES
0.039 TYP.
0.018 TYP.
0.020
D
C
1
5
SOT-6
0.074
(1.90 mm REF.)
0.071 (1.80 mm)
0.052 (1.30 mm)
0.037 (0.95 mm) REF.
0.122 (3.10 mm)
0.106 (2.70 mm)
0.006
(0.15 mm)
0.000
(0.00 mm)
0.057 (1.45 mm)
0.035 (0.90 mm)
0.020 (0.51 mm)
0.014 (0.350 mm)
0.126 (3.20 mm)
0.087 (2.20 mm)
PIN 6
PIN 1
PIN 1
INDICATOR
0.022 (0.61 mm)
0.004 (0.10 mm)
0.014
(0.26 mm)
0.004
(0.10 mm)
0.012
(0.30 mm)
TYP.
5.0° ± 1°
5.0° ± 1°
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