CWM-R Series
DIRECTIONAL COUPLERS
0.5 to 26.5 GHz / Ultra-Broadband / 10, 16, 20 dB Coupling / High-Perf. Stripline / 25 W / SMA
PRINCIPAL SPECIFICATIONS
Frequency Coupling,¤ Frequency Directivity, *Insertion
VSWR Max., Outline
Main Coupled Ref.
Model
Number
Range,
GHz
dB,
Nom.
Sensitivity,
dB, Max.
dB,
Min.
Loss,
dB, Max. Line
Line Dim.
CWM-20R-9.2G
0.5 - 18.0
0.5 - 20.0
20 ±1.0
±1.0
±1.0
14
14
1.3
1.3
1.40:1
1.35:1
1.50:1
1.35:1
1
1
CWM-10R-10.2G
CWM-16R-10.2G
10 ±1.0
16 ±1.0
CWM-10R-10.8G
CWM-16R-10.8G
1.7 - 20.0
0.5 - 26.5
1.7 - 26.5
6.0 - 26.5
18.0 - 26.5
10 ±1.0
16 ±1.0
±0.55
±1.0
±0.6
±0.5
±0.5
15
12
14
14
14
1.2
0.9
1.35:1
1.50:1
1.45:1
1.50:1
2
1
2
3
3
CWM-10R-13.2G
CWM-16R-13.2G
10 ±1.0
16 ±1.0
2.0
1.6
CWM-10R-13.8G
CWM-16R-13.8G
10 ±1.0
16 ±1.0
1.5
1.0
1.40:1
1.35:1
1.50:1
1.45:1
CWM-10R-16G
CWM-20R-16G
10 ±1.0
20 ±1.0
1.0
0.7
1.45:1
1.45:1
CWM-10R-22G
CWM-20R-22G
10 ±1.0
20 ±1.0
1.0
0.7
1.45:1
1.45:1
¤Coupling is referenced to the output
* Insertion Loss above Coupling Loss
POWER SPECIFICATIONS
GENERAL SPECIFICATIONS
Coupled ‘‘Loss’’:
10 dB units:
16 dB units:
20 dB units:
30 dB units:
0.46 dB
0.08 dB
0.044 dB
Impedance:
50 W nom.
Operating Temp: -- 55° to +85°C
Available Options:
0.004 dB
Peak Power:
Input Power (Forward):
3 kW max.
Connectors:
Frequencies: Available to 65 GHz.
Higher Power : With N connectors
TNC & N type available
25 Watts max.
5 Watts max.
50 Watts max.
Reflected Power:
10/16 dB units:
20/30 dB units:
Coupling:
30 dB available
General Notes:
1. The CWM-R series of directional couplers consists of three port devices utilizing stripline technology in a connectorized package. Each unit is
a multi-section quarter wave coupler designed to cover a very broad band of frequencies. They are ideally suited for monitoring forward or reflected
power in EW and similar wideband systems with minimal perturbation to the main line signal.
2. Similar directional couplers may be custom ordered with coupling values up to 35 dB and covering frequency bands up to 26.5 GHz.
3. These units comply with MIL-C-15370 and may be supplied screened for compliance with additional specifications you designate for military
and aerospace applications requiring the highest reliability.
22Feb96
For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531