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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
Bi-Directional Coupler Electrical Specifi cations
Maximum Ratings
Coaxial Connections
Features
GPS
PCS
LAB use
INPUT
J1
OUTPUT
J2
COUPLED (forward)
J4
COUPLED (reverse)
J3
wide frequency range, 1270 to 2575 MHz
good coupling fl atness, 0.1 dB typ over 1700-2200 MHz
high directivity, 30 dB typ.
very good VSWR, 1.05:1 typ.
high power, 20W
Applications
Operating Temperature
-55C to 100C
Storage Temperature
-55C to 100C
Outline Drawing
Outline Dimensions ( )
inch
mm
ZBDC25-2575W+
MAINLINE LOSS
0.15
0.2
0.25
0.3
0.35
0.4
1200
1400
1600
1800
2000
2200
2400
2600
FREQUENCY (MHz)
M
A
I
N
LI
NE LO
SS (
d
B)
at RF level of -10 dBm
ZBDC25-2575W+
COUPLING & DIRECTIVITY
23
27
31
35
39
43
1200
1400
1600
1800
2000
2200
2400
2600
FREQUENCY (MHz)
COUP
LING &
DIRE
CTIV
ITY
(d
B
)
COUPLING IN-CPL FWD
DIRECTIVITY IN-CPL REV
at RF level of -10 dBm
ZBDC25-2575W+
ZBDC25-2575W+
RETURN LOSS
20
25
30
35
1200
1400
1600
1800
2000
2200
2400
2600
FREQUENCY (MHz)
RETURN LO
SS (
d
B)
IN
OUT
CPL FWD
CPL REV
at RF level of -10 dBm
electrical schematic
CPL
FORWARD
CPL
REVERSE
IN
OUT
50
, 25dB Coupling,
1270 to 2575 MHz
Bi-Directional Coupler
REV. OR
M104965
ED-12228/2
ZBDC25-2575W+
HY/LC/CP/AM
060511
Coaxial
CASE STYLE: HT1180
Connectors Model
Price
Qty.
SMA
ZBDC25-2575W-S+ $299.95
(1-9)
Frequency
(MHz)
Mainline Loss
(dB)
Coupling
(dB)
Return Loss
(dB)
In
Cpl Fwd
Out
In-Cpl Fwd
Out-Cpl Rev
Directivity
(dB)
Cpl Rev
Out-Cpl Fwd In-Cpl Rev
In-Out
FREQ.
(MHz)
COUPLING
(dB)
MAINLINE LOSS
1
(dB)
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT
(W)
Nom.
Flatness
Typ.
Max.
Typ.
Min.
Typ.
Max.
1270-2575
24.91.1
0.8
0.3
0.50
28
20
1.05
20
1700-2200
24.30.5
0.3
0.3
0.45
30
24
1.05
20
1270.00
0.23
25.70
25.71
25.63
26.48
27.91
27.32
30.41
28.47
1450.00
0.24
25.11
25.13
27.14
28.26
29.10
28.76
30.05
28.31
1600.00
0.26
24.78
24.79
28.20
30.37
30.28
29.78
30.32
28.69
1750.00
0.27
24.58
24.59
29.08
33.25
30.99
30.43
30.52
29.43
1850.00
0.28
24.51
24.53
29.48
35.31
31.05
30.69
31.09
30.11
1950.00
0.29
24.50
24.53
29.90
37.88
31.08
30.44
31.41
30.80
2100.00
0.30
24.59
24.61
29.04
41.38
29.61
29.12
31.92
31.77
2250.00
0.31
24.81
24.82
27.73
41.01
27.68
27.97
31.58
32.17
2400.00
0.32
25.17
25.16
26.36
37.32
25.83
26.47
30.79
32.08
2575.00
0.34
25.77
25.75
24.33
33.99
23.84
24.15
29.24
30.72
A
B
C
D
E
F
3.75
1.56
.70
.125
3.500
.780
5.25
39.62
17.78
3.18
88.90
19.81
G
H
J
K
wt
.44
.60
.97
2.78
grams
1.18
15.24
24.64
70.61
130.0
1. Mainline loss includes theoretical power loss at coupled port.
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffi x identifi es RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifi cations.
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