Directional Coupler
50Ω
Maximum Ratings
Operating Temperature
Storage Temperature
Coaxial
ZFDC-20-50+
20 to 2000 MHz
-55°C to 100°C
-55°C to 100°C
Features
Coaxial Connections
INPUT
OUTPUT
COUPLED
3
1
2
• very wideband, 20 to 2000 MHz
• excellent directivity, 25 dB typ.
• excellent mainline loss, 0.7 dB typ.
• rugged shielded case
CASE STYLE: K18
Connectors Model
SMA
ZFDC-20-50-S+
BRACKET (OPTION"B")
Price
$64.95
$2.50
Qty.
(1-9)
(1+)
Applications
• cellular
• GPS
• instrumentation
• communication receivers & transmitters
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix has been added in order to identify RoHS
Compliance. See our web site for RoHS Compliance
methodologies and qualifications.
Directional Coupler Electrical Specifications
Outline Drawing
FREQ.
RANGE
(MHz)
f
L
-f
U
20-2000
COUPLING*
(dB)
L
Nom.
19.5±0.5
Flatness
±0.8
MAINLINE LOSS
1
(dB)
M
U
L
DIRECTIVITY
(dB)
M
Min.
20
Typ.
25
Min.
20
Typ.
22
U
Min.
10
VSWR
(:1)
POWER
INPUT
(W)
L
MU
Max.
1.0
Max.
1.0
Typ. Max. Typ. Max. Typ. Max. Typ.
0.8
1.3
0.7
1.3
1.0
1.6
30
Typ.
1.25
L = low range [f
L
to 10 f
L
]
M = mid range [10 f
L
to f
U
/2]
U= upper range [f
U
/2 to f
U
]
1. Mainline loss includes theoretical power loss at coupled port.
* Above 1000 MHz, coupling flatness
±1
dB
Typical Performance Data
Frequency
(MHz)
20.00
50.00
80.00
100.00
300.00
1000.00
1200.00
1400.00
1600.00
1800.00
2000.00
at RF level of -10 dBm
Mainline Loss
(dB)
In-Out
0.82
0.65
0.65
0.60
0.66
0.86
1.00
1.09
1.27
1.34
1.46
ZFDC-20-50+
MAINLINE LOSS
Coupling
(dB)
In-Cpl
19.36
19.21
19.19
19.14
19.18
19.37
19.40
19.40
19.35
19.36
19.37
Directivity
(dB)
29.25
33.94
34.88
35.01
31.17
23.02
22.32
21.99
21.75
21.00
19.19
In
17.95
21.29
22.44
22.93
25.70
24.12
20.46
17.71
15.67
14.04
12.70
Return Loss
(dB)
Out
19.33
23.63
25.39
26.11
28.22
32.91
32.70
30.28
27.28
24.37
21.84
Cpl
21.82
24.42
25.30
25.66
28.13
28.50
24.27
21.55
19.50
17.79
16.24
Outline Dimensions (
inch
)
mm
A
1.25
31.75
B
1.25
31.75
C
.75
19.05
D
.63
16.00
E
.38
9.65
F
1.00
25.40
G
.125
3.18
H
1.000
25.40
J
--
--
K
--
--
L
.125
3.18
M
1.688
42.88
N
2.18
55.37
P
.75
19.05
Q
wt
.07 grams
70.0
1.78
ZFDC-20-50+
COUPLING & DIRECTIVITY
60
COUPLING & DIRECTIVITY
(dB)
50
40
30
20
10
0
0
400
800
1200
FREQUENCY (MHz)
1600
2000
at RF level of -10 dBm
2.0
MAINLINE LOSS (dB)
1.6
1.2
0.8
0.4
0.0
COUPLING
DIRECTIVITY
0
400
800
1200
FREQUENCY (MHz)
1600
2000
ZFDC-20-50+
RETURN LOSS
60
RETURN LOSS (dB)
50
40
30
20
10
0
0
400
800
1200
FREQUENCY (MHz)
1600
2000
at RF level of -10 dBm
IN
OUT
CPL
electrical schematic
Mini-Circuits
ISO 9001 ISO 14001
CERTIFIED
RF/IF MICROWAVE COMPONENTS
®
minicircuits.com
REV. B
M113397
ZFDC-20-50+
WZ/TD/CP/AM
070907
EW
ALL N
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661 For detailed performance specs & shopping online see Mini-Circuits web site
The Design Engineers Search Engine
Provides ACTUAL Data Instantly From MINI-CIRCUITS At:
www.minicircuits.com
Microcontroller MCU
京公网安备 11010802033920号
EEWORLD
