CWM-20M-10G SQ
DIRECTIONAL COUPLERS
REV: 001, 09/10/04
• SPACE QUALIFIED
• 2 - 18 GHz DIRECTIONAL COUPLER
SERIES 05
TECHNICAL DESCRIPTION / APPLICATION
The CWM-20M-10G SQ Directional Coupler covers 2 - 18 GHz with a stripline design. This offers low
transmission and excellent VSWR. This unit has been designed, manufactured and qualified per Merrimac
document CENG-0001, “Standard Design Requirements for Space Qualified Devices”.
GENERAL SPECIFICATIONS
MODEL NUMBER
FREQUENCY RANGE
GHz
CWM-20M-10G SQ
VSWR
COUPLED, MAX.
1.40:1
2 - 18
COUPLING
dB
20.0 +/- 1.0
INSERTION LOSS
dB
MAX.
1.0
DIRECTIVITY
dB
MIN.
2 - 12.4 GHz
12.4 - 18 GHz
15.0
12.0
WEIGHT
MAX.
1.70 oz.
VSWR
MAIN, MAX.
1.35:1
FREQUENCY SENSITIVE
dB
+/- 0.50 NOM., ± 0.80 MAX.
CW POWER RATING
MAIN LINE
25 WATTS
PACKAGE OUTLINE
.250
[6.35]
1.590
[40.39]
.650 MAX.
.700±.030
[17.78±0.76]
.260
[6.60]
CPL
[16.51]
IN
.550
[13.97]
1.000±.015
[25.40±0.38]
2.090±.030
[53.09±0.76]
OUT
3X .400 MAX.
[10.16]
.500±.030
[12.70±0.76]
4X .250
[6.35]
3X CONNECTOR, RECEPTACLE,
FEMALE, SMA TYPE, MATES
WITH CONNECTOR PLUG, MALE,
SMA PER MIL-PRF-39012
NOTES:
1. TOLERANCE ON 3 PLACE DECIMALS TO
BE ±.020 [.51] EXCEPT AS NOTED.
2. DIMENSIONS IN INCHES [mm].
.550
[13.97]
1.000±.015
[25.40±0.38]
(MOUNTING SURFACE)
4X #2-56UNC-2B
X .120 [3.05] DEEP
50 OHM TERMINATION
Merrimac Industries, RF & Microwave Products Division / 41 Fairfield Place, West Caldwell, NJ 07006
Tel: 973.575.1300 / Fax: 973.575.0531 / Internet: www.Merrimacind.com
.340
[8.64]
[8.64]
.340
MERRIMAC [ MERRIMAC INDUSTRIES, INC. ]
