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
1
OUTPUT
2
COUPLED
3
Operating Temperature
-55C to 100C
Storage Temperature
-55C to 100C
Power input
3W Max.
ZNDC-20-2G
MAINLINE LOSS
0.0
0.2
0.4
0.6
0.8
1.0
800
1000
1200
1400
1600
1800
2000
FREQUENCY (MHz)
M
A
I
N
L
I
N
E
L
O
S
S
(
d
B
)
at RF level of -10 dBm
ZNDC-20-2G
COUPLING & DIRECTIVITY
15
17
19
21
23
25
800
1000
1200
1400
1600
1800
2000
FREQUENCY (MHz)
COUPLING
DIRECTIVITY (dB)
10
20
30
40
50
60
COUPLING
DIRECTIVITY
at RF level of -10 dBm
ZNDC-20-2G
ZNDC-20-2G
RETURN LOSS
0
10
20
30
40
50
800
1000
1200
1400
1600
1800
2000
FREQUENCY (MHz)
RETURN LOSS (dB)
IN
OUT
CPL
at RF level of -10 dBm
electrical schematic
INPUT
OUTPUT
COUPLED
50 20dB 800 to 2000 MHz
Directional Coupler
REV. OR
M91182
ED-6521/3
ZNDC-20-2G
WZ/TD/CP
060807
Coaxial
Frequency
(MHz)
Mainline Loss
(dB)
In-Out
Coupling
(dB)
In-Cpl
Directivity
(dB)
In
Return Loss
(dB)
Out
Cpl
FREQ.
RANGE
(MHz)
COUPLING
(dB)
MAINLINE LOSS
1
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT
(W)
f
L
-f
U
Nom.
Max.
Flatness
Typ. Max.
Typ. Min.
Typ.
Max.
800-2000
800-1000
20.00.5
0.3
0.35
0.6
25
17
1.15
3
1000-1700 19.80.5
0.4
0.5
0.9
25
18
1.15
3
1700-2000 19.80.5
0.5
0.6
1.1
20
14
1.15
3
Features
excellent insertion loss, 0.5 dB typ.
excellent VSWR, 1.15:1 typ.
very flat coupling 0.2 dB typ.
Applications
cellular
PCS
ISM
CASE STYLE: FM587
Connectors Model
Price
Qty.
SMA
ZNDC-20-2G-S
$49.95
(1-9)
800.00
0.33
20.04
24.78
24.68
24.07
20.57
900.00
0.35
19.95
26.10
26.07
25.28
20.84
1000.00
0.37
19.87
27.15
27.09
25.57
21.21
1100.00
0.39
19.81
27.62
26.98
25.04
21.54
1300.00
0.46
19.73
28.22
24.33
22.51
22.23
1500.00
0.53
19.74
28.44
21.90
20.25
23.28
1700.00
0.60
19.82
26.05
20.70
18.83
24.03
1800.00
0.64
19.90
25.11
20.34
18.32
24.40
1900.00
0.69
19.99
24.05
20.25
17.90
24.43
2000.00
0.73
20.11
21.74
20.57
17.76
24.12
Outline Drawing
Outline Dimensions ( )
inch
mm
A
B
C
D
E
F
2.00
1.25
0.75
0.17
1.656
0.15
50.80
31.75
19.05
4.32
42.06
3.81
G
H
J
K
wt
0.14
0.63
0.44
0.38
grams
3.56
16.00
11.18
9.65
57.0
PDF 
ZIP