A
B
C
D
E
F
G
2.00
2.00
.75
1.00
.25 1.500
.125
50.80 50.80 19.05 25.40
6.35 38.10
3.18
H
J
K
L
wt
.39
1.00
.50
1.00
grams
9.91 25.40 12.70 25.40
170.0
Frequency
(MHz)
Mainline Loss
(dB)
In-Out
Coupling
(dB)
In-Cpl
Directivity
(dB)
In
Return Loss
(dB)
Out
Cpl
INTERNET
http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
Distribution Centers NORTH AMERICA 800-654-7949 417-335-5935 Fax 417-335-5945 EUROPE 44-1252-832600 Fax 44-1252-837010
Mini-Circuits
Mini-Circuits ISO 9001 & ISO 14001 Certified
Typical Performance Data
Directional Coupler Electrical Specifications
Maximum Ratings
Coaxial Connections
INPUT
S
OUTPUT
1
COUPLED
2
Operating Temperature
-55C to 100C
Storage Temperature
-55C to 100C
Outline Drawing
Outline Dimensions ( )
inch
mm
ZADC-20-18-75
MAINLINE LOSS
0.0
0.2
0.4
0.6
0.8
1.0
800
990
1180
1370
1560
1750
FREQUENCY (MHz)
MAINLINE
LOSS
(dB)
at RF level of -10 dBm
ZADC-20-18-75
COUPLING & DIRECTIVITY
0
8
16
24
32
40
800
990
1180
1370
1560
1750
FREQUENCY (MHz)
C
O
U
P
L
I
N
G
&
D
I
R
E
C
T
I
V
I
T
Y
(
d
B
)
COUPLING
DIRECTIVITY
at RF level of -10 dBm
ZADC-20-18-75
ZADC-20-18-75
RETURN LOSS
10
18
26
34
42
50
800
990
1180
1370
1560
1750
FREQUENCY (MHz)
RETURN
LOSS
(dB)
IN
OUT
CPL
at RF level of -10 dBm
electrical schematic
INPUT
OUTPUT
COUPLED
75 800 to 1750 MHz
Directional Coupler
REV. B
M93848
ED-7273/1
ZADC-20-18-75
WZ/TD/CP
060727
Coaxial
CASE STYLE: F14
Connectors Model
Price
Qty.
BNC
ZADC-20-18-75
$54.95 ea. (1-9)
1. Mainline loss includes theoretical power loss at coupled port.
Features
wideband, 800 to 1750 MHz
excellent insertion loss, 0.4 dB typ.
excellent VSWR, 1.2:1 typ.
rugged shielded case
Applications
catv
GPS/cellular
instrumentation
FREQ.
RANGE
(MHz)
COUPLING
(dB)
MAINLINE LOSS
1
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT
(W)
f
L
-f
U
Nom.
Flatness
Typ. Max.
Typ. Min.
Typ.
Max.
800-1750
19.80.6
0.7
0.4
0.9
22
13
1.2
1.0
800.00
0.39
20.40
16.42
24.06
24.43
24.51
860.00
0.39
20.32
17.06
22.94
23.93
25.20
940.00
0.40
20.23
18.28
21.68
23.71
27.29
1040.00
0.42
20.19
20.17
21.34
24.73
28.36
1120.00
0.44
20.16
22.38
22.08
25.68
26.18
1220.00
0.48
20.11
26.29
23.42
25.91
24.97
1320.00
0.52
20.05
29.14
24.76
26.25
24.58
1435.00
0.57
19.95
24.27
25.05
26.85
24.31
1610.00
0.63
19.82
18.04
22.84
31.24
24.71
1750.00
0.70
19.75
15.32
20.01
24.63
24.61
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