19.5 dB Bi-Directional Coupler,
0.5 - 400 MHz
CH-/CHS-137
RH-1 (CH-137)
V 4.00
Features
n
Low Cost
n
Convenient Plug-In Mounting
n
Fully Hermetic Package (CHS-137)
n
MIL-STD-202 Screening Available
Description
Bi-Directional Couplers offer the ability to couple the
power in two directions while maintaining directivity.
SF-1 (CHS-137)
Pin Configuration (CHS-137)
Pin No.
Function
Pin No.
Function
1
C
3
A
2
B
4
D
Pin Configuration (CH-137)
Pin No.
Function
Pin No.
Function
1
5
GND
2
GND
6
3
7
GND
4
8
GND
19.5 dB Bi-Directional Coupler, 0.5 - 400 MHz
CH-/CHS-137
V 4.00
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s)
or information contained herein without notice. M/A-COM makes no warranty,
representation or guarantee regarding the suitability of its products for any
particular purpose, nor does M/A-COM assume any liability whatsoever arising out
of the use or application of any product(s) or information.
Visit www.macom.com for additional data sheets and product information.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
2
Electrical Specifications
1
: T
A
= -55C to +85C
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
Coupling
Input to Output
0.5 - 200 MHz
200 - 400 MHz
dB
dB
19.0
19.0
19.5
20.0
20.0
21.0
VSWR
All Ports
5 - 200 MHz
0.5 - 400 MHz
Ratio
Ratio
--
--
--
--
1.2:1
1.5:1
Directivity
Both Directions
0.5 - 50 MHz
50 - 200 MHz
200 - 400 MHz
dB
dB
dB
30
20
15
--
--
--
--
--
--
Main Line Loss
2
--
0.5 - 50 MHz
50 - 200 MHz
200 - 400 MHz
dB
dB
dB
--
--
--
--
--
--
0.5
0.4
0.6
Input Power
--
--
Watt
--
--
3.0
1. All specifications apply with 50 ohm source and load impedance.
2. Includes theoretical power split.
Functional Diagram (CH-137)
Functional Diagram (CHS-137)
P2, P5, P7 and P8 Ground
Coupled Arm
0
Coupled Arm
180
6
3
1
4
Isolated
Main Line
Main Line
0
180
C
A
D
B
19.5 dB Bi-Directional Coupler, 0.5 - 400 MHz
CH-/CHS-137
V 4.00
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s)
or information contained herein without notice. M/A-COM makes no warranty,
representation or guarantee regarding the suitability of its products for any
particular purpose, nor does M/A-COM assume any liability whatsoever arising out
of the use or application of any product(s) or information.
Visit www.macom.com for additional data sheets and product information.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
3
Typical Performance Curves
Directivity
Main Line Loss
Coupling
Ordering Information
Part Number
Package
CH-137 PIN
RH-1
CHS-137 PIN
SF-1
0.2
0.3
0.4
0.5
0.6
0.5
1.0
2.0
5.0
10.0
20.0
50.0
100.0 200.0 400.0
Frequency (MHz)
Main Line Loss (dB
)
10
20
30
40
50
0.5
1.0
2.0
5.0
10.0
20.0
50.0
100.0
200.0
400.0
Frequency (MHz)
D
i
r
ectivity (dB
)
19.0
19.5
20.0
20.5
21.0
0.5
1.0
2.0
5.0
10.0
20.0
50.0
100.0
200.0
400.0
Frequency (MHz)
C
oupl
i
ng (
d
B
)
C
H
S
-
1
3
7
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