CDM-M-G Series
DUAL DIRECTIONAL COUPLERS
500 MHz to 18 GHz / Stripline Octave Bandwidths / 10, 20, 30 dB Coupling / 50 W / Low Cost / SMA
PRINCIPAL SPECIFICATIONS
Frequency
Range,
GHz
Nominal
Coupling,¤ Sensitivity,
Frequency Directivity *Insertion
VSWR, Max.
Main Coupled Outline
Model
Number
dB,
Min.
Loss, dB,
Max.
dB
dB, Max.
Line
Lines
Ref.
CDM-10M-.75G 0.5 - 1.0
CDM-20M-.75G
CDM-30M-.75G
CDM-10M-1.5G 1.0 - 2.0
CDM-20M-1.5G
CDM-30M-1.5G
10 ±1.25
20 ±1.25
30 ±1.25
10 ±1.25
20 ±1.25
30 ±1.25
10 ±1.25
20 ±1.25
30 ±1.25
10 ±1.25
20 ±1.25
30 ±1.25
10 ±1.25
20 ±1.25
30 ±1.25
10 ±1.25
20 ±1.25
30 ±1.25
10 ±1.25
20 ±1.25
30 ±1.25
20 ±1.25
30 ±1.25
± 0.8
22
22
20
18
18
16
15
15
1.50
0.50
0.40
1.50
0.50
0.40
1.50
0.50
0.40
1.50
0.50
0.40
1.70
0.50
0.40
1.90
0.70
0.60
2.20
1.00
1.00
1.00
1.00
1.15:1
1.10:1
1
1
2
3
3
4
5
5
6
7
7
8
7
7
8
7
7
8
7
9
9
9
9
± 0.8
± 0.8
± 0.8
± 0.8
± 0.6
± 0.8
± 0.6
1.15:1
1.20:1
1.30:1
1.35:1
1.35:1
1.40:1
1.40:1
1.10:1
1.15:1
1.25:1
1.25:1
1.30:1
1.40:1
1.40:1
CDM-10M-3G
CDM-20M-3G
CDM-30M-3G
CDM-10M-4G
CDM-20M-4G
CDM-30M-4G
CDM-10M-6G
CDM-20M-6G
CDM-30M-6G
2.0 - 4.0
2.6 - 5.2
4.0 - 8.0
CDM-10M-10G 7.0 - 12.4
CDM-20M-10G
CDM-30M-10G
CDM-10M-12G 8.0 - 16.0
CDM-20M-12G
CDM-30M-12G
CDM-20M-15G 12.4 - 18.0
CDM-30M-15G
¤Coupling is referenced to the input and includes frequency sensitivity
* Insertion Loss including Coupling Loss
21Feb96
POWER SPECIFICATIONS
GENERAL SPECIFICATIONS
Coupled Power ‘‘Loss’’:
Impedance:
Operating Temperature: -- 55° to +85°C
SMA Connectors:
50 W nom.
10 dB section:
20 dB section:
30 dB section:
CDM-M-12G:
CDM-M-15G:
All Others:
0.46 dB
0.044 dB
0.004 dB
2 kW max.
1 kW max.
3 kW max.
50 Watts max.
Female, to meet the
interface rqts.
of MIL-C-39012.
see CDN-M series
Peak Power:
N type connectors:
Other frequency bands: Available option
Input Power (Forward):
For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531