High Power
SYBD-18-172HP+
Bi-Directional Coupler
50Ω 18dB Coupling DC Pass 1400 to 1750 MHz
Maximum Ratings
Operating Temperature
Storage Temperature
DC Current
Features
CASE STYLE: JB1233
• high power handling, 25 watts typ.
• low mainline loss 0.1 dB typ.
• excellent VSWR, 1.1:1 typ.
• excellent directivity, 28 dB typ.
• wideband frequency, 1400 to 1750 MHz
-55°C to 100°C
-55°C to 100°C
2A
+RoHS Compliant
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications
Permanent damage may occur if any of these limits are exceeded.
Pin Connections
Applications
• GPS
• instrumentation
• defense communications
• federal communications
INPUT
1
2
4
3
5
OUTPUT
COUPLED (forward)
COUPLED (reverse)
GROUND
Bi-Directional Coupler Electrical Specifications
MAINLINE LOSS1
(dB)
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT
(W)
Outline Drawing
FREQ.
(MHz)
COUPLING
(dB)
fL-fU
Nom.
Flatness
Typ.
Max.
Typ. Min.
Typ.
Max.
1400-1750
1400-1580
1580-1750
0.10
0.10
0.12
0.35
0.30
0.35
28
28
30
18
18
18
1.10
1.10
1.05
19.5 0.7
18.5 0.7
0.7
0.ꢀ
50
25
1. Mainline loss includes theoretical power loss at coupled port.
Typical Performance Data
Frequency Mainline Loss
Coupling
(dB)
Directivity
(dB)
Return Loss
(dB)
(MHz)
(dB)
In-Out
In-Cpl Fwd
Out-Cpl Rev Out-Cpl Fwd In-Cpl Rev
In
Out
Cpl Fwd
Cpl Rev
1400.00
1440.00
1480.00
1520.00
1580.00
0.09
0.09
0.10
0.11
0.10
20.22
20.00
19.80
19.59
19.29
20.2ꢀ
20.05
19.84
19.ꢀ3
19.33
27.ꢀ7
28.01
28.35
28.8ꢀ
29.70
28.84
29.49
29.81
30.5ꢀ
31.92
28.48
28.94
29.44
30.03
31.34
27.90
28.32
28.82
29.41
30.ꢀ0
32.21
32.71
33.10
33.8ꢀ
35.70
32.39
32.94
33.27
34.17
35.73
PCB Land Pattern
1ꢀ20.00
1ꢀꢀ0.00
1700.00
1740.00
1750.00
0.11
0.12
0.11
0.12
0.13
19.11
18.92
18.74
18.58
18.57
19.15
18.97
18.78
18.ꢀ1
18.58
29.91
30.98
31.ꢀ8
31.49
30.54
32.58
34.03
35.3ꢀ
35.ꢀ7
34.47
32.35
33.79
35.4ꢀ
37.37
38.33
31.44
32.99
34.ꢀ2
3ꢀ.34
37.11
3ꢀ.32
38.29
40.80
42.30
43.29
3ꢀ.ꢀ4
38.ꢀ0
40.38
42.58
43.72
SYBD-18-172HP+
MAINLINE LOSS
SYBD-18-172HP+
COUPLING & DIRECTIVITY
Suggested Layout,
Tolerance to be within .002
0.3
50
40
30
20
10
0
inch
Outline Dimensions (
)
mm
0.2
0.1
0.0
A
.70
B
C
D
E
F
G
.32
.13 .060 .100 .500 .022
17.78 8.13 3.30 1.52 2.54 12.70 0.56
H
J
K
L
M
wt
grams
0.68
COUPLING IN-CPL FWD
DIRECTIVITY IN-CPL-REV
.060 .040 .360 .670 .175
1.52 1.02 9.14 17.02 4.45
1400
1470
1540
1610
1680
1750
1400
1470
1540
1610
1680
1750
Demo Board MCL P/N: TB-398
Suggested PCB Layout (PL-260)
FREQUENCY (MHz)
FREQUENCY (MHz)
SYBD-18-172HP+
RETURN LOSS
Electrical Schematic
60
50
40
30
20
10
IN
OUT
CPL-FWD
CPL-REV
1400
1470
1540
1610
1680
1750
FREQUENCY (MHz)
Notes
A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.
B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled
to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp
REV. B
M151107
®
ED-12713/3
SYBD-18-172HP+
WZ/CP/AM
Mini-Circuits
www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
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