Coaxial
Bi-Directional Coupler
50Ω,
25dB Coupling,
1270 to 2575 MHz
Maximum Ratings
Operating Temperature
Storage Temperature
-55°C to 100°C
-55°C to 100°C
ZBDC25-2575W+
Features
•
•
•
•
•
wide frequency range, 1270 to 2575 MHz
CASE STYLE: HT1180
good coupling flatness, ±0.1 dB typ over 1700-2200 MHz
high directivity, 30 dB typ.
Connectors Model
Price
very good VSWR, 1.05:1 typ.
SMA
ZBDC25-2575W-S+ $299.95
high power, 20W
Qty.
(1-9)
Coaxial Connections
INPUT
OUTPUT
COUPLED (forward)
COUPLED (reverse)
J1
J2
J4
J3
Applications
• GPS
• PCS
• LAB use
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications.
Bi-Directional Coupler Electrical Specifications
FREQ.
(MHz)
COUPLING
(dB)
MAINLINE LOSS
1
(dB)
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT
(W)
Max.
20
20
Outline Drawing
Nom.
Flatness
Typ.
1270-2575
24.9±1.1
±0.8
0.3
1700-2200
24.3±0.5
±0.3
0.3
1. Mainline loss includes theoretical power loss at coupled port.
Max.
0.50
0.45
Typ.
28
30
Min.
20
24
Typ.
1.05
1.05
Typical Performance Data
Frequency
(MHz)
1270.00
1450.00
1600.00
1750.00
1850.00
1950.00
2100.00
2250.00
2400.00
2575.00
Mainline Loss
(dB)
In-Out
Coupling
(dB)
In-Cpl Fwd
Out-Cpl Rev
Directivity
(dB)
Out-Cpl Fwd In-Cpl Rev
In
Return Loss
(dB)
Out
Cpl Fwd Cpl Rev
Outline Dimensions (
inch
)
mm
A
B
C
3.75
1.56
.70
5.25 39.62 17.78
D
E
F
.125 3.500
.780
3.18 88.90 19.81
MAINLINE LOSS (dB)
0.23
0.24
0.26
0.27
0.28
0.29
0.30
0.31
0.32
0.34
25.70
25.11
24.78
24.58
24.51
24.50
24.59
24.81
25.17
25.77
25.71
25.13
24.79
24.59
24.53
24.53
24.61
24.82
25.16
25.75
25.63
27.14
28.20
29.08
29.48
29.90
29.04
27.73
26.36
24.33
26.48
28.26
30.37
33.25
35.31
37.88
41.38
41.01
37.32
33.99
27.91
29.10
30.28
30.99
31.05
31.08
29.61
27.68
25.83
23.84
27.32
28.76
29.78
30.43
30.69
30.44
29.12
27.97
26.47
24.15
30.41
30.05
30.32
30.52
31.09
31.41
31.92
31.58
30.79
29.24
28.47
28.31
28.69
29.43
30.11
30.80
31.77
32.17
32.08
30.72
ZBDC25-2575W+
MAINLINE LOSS
0.4
0.35
0.3
0.25
0.2
0.15
1200
at RF level of -10 dBm
ZBDC25-2575W+
COUPLING & DIRECTIVITY
COUPLING & DIRECTIVITY
(dB)
G
H
J
K
.44
.60
.97
2.78
1.18 15.24 24.64 70.61
wt
grams
130.0
43
39
35
31
27
at RF level of -10 dBm
COUPLING IN-CPL FWD
DIRECTIVITY IN-CPL REV
1400
1600
1800
2000
2200
2400
2600
FREQUENCY (MHz)
23
1200
1400
1600 1800 2000 2200
FREQUENCY (MHz)
2400
2600
ZBDC25-2575W+
RETURN LOSS
35
RETURN LOSS (dB)
at RF level of -10 dBm
electrical schematic
IN
OUT
30
25
IN
20
1200
1400
OUT
1600
1800
CPL FWD
2000
2200
CPL REV
2400
2600
CPL
FORWARD
CPL
REVERSE
FREQUENCY (MHz)
Mini-Circuits
®
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
ISO 9001 & ISO 14001
Certified
REV. OR
M104965
ED-12228/2
ZBDC25-2575W+
HY/LC/CP/AM
060511
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