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 CWM-20M-10G SQ FREQUENCY RANGE COUPLING INSERTION LOSS DIRECTIVITY VSWR GHz dB dB MAX. dB MIN. MAIN, MAX. 2 - 18 20.0 +/- 1.0 1.0 2 - 12.4 GHz 12.4 - 18 GHz 15.0 12.0 1.35:1 VSWR FREQUENCY SENSITIVE CW POWER RATING WEIGHT COUPLED, MAX. dB MAIN LINE MAX. 1.40:1 +/- 0.50 NOM., ± 0.80 MAX. 25 WATTS 1.70 oz. PACKAGE OUTLINE .650 MAX. .550 [13.97] .340 OUT [8.64] .260 [6.60] .700±.030 [17.78±0.76] CPL IN 1.000±.015 [25.40±0.38] 2.090±.030 [53.09±0.76] .500±.030 [12.70±0.76] 3X .400 MAX. [10.16] [16.51] 1.590 [40.39] .250 [6.35] 4X .250 [6.35] .550 [13.97] 1.000±.015 [25.40±0.38] .340 [8.64] 3X CONNECTOR, RECEPTACLE, FEMALE, SMA TYPE, MATES WITH CONNECTOR PLUG, MALE, SMA PER MIL-PRF-39012 (MOUNTING SURFACE) NOTES: 1. TOLERANCE ON 3 PLACE DECIMALS TO BE ±.020 [.51] EXCEPT AS NOTED. 2. DIMENSIONS IN INCHES [mm]. 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