CRZ-B Series WIDEBAND DIRECTIONAL COUPLERS 10 to 1000 MHz / 4-Port / Miniature MMIC Compatible Design / Minimal Size and Weight / Case-Free PRINCIPAL SPECIFICATIONS Model Number Coupling, dB RF Bandwidth CRZ-11B-500 CRZ-20B-500 11 ±1 20 ±1 10 to 1000 MHz 10 to 1000 MHz Coupling Value is referred to Input Port B-size Outline GENERAL SPECIFICATIONS Impedance: 50 Ω nom. Frequency Sensitivity: ±1 dB, max. Insertion Loss (above Coupling Value): 10 to 500 MHz: 1 dB max. 500 to 1000 MHz: 1.5 dB max. Directivity: 10 to 300 MHz: 20 dB min. 300 to 800 MHz: 15 dB min. 800 to 1000 MHz: 13 dB min. VSWR: 10 to 500 MHz: 1.5:1 max. 500 to 1000 MHz: 1.8:1 max. CW Input: 1 W max. Weight, Nominal: 0.007 oz. (200 mg) Operating Temperature: -- 55° to +85° General Notes: 1. Bi-directional couplers in the CRZ-B CaseFree series are size and process compatible with MMIC and other similar sub-miniature components. Their low 0.130" profile facilitates integration with hermetic packages using silver epoxy, solder or wire bonding attachment methods. 2. Similarly constructed couplers are available in the CBZ-B series with the "reverse coupled port" terminated for use as a 3-port directional coupler. NOTES: 1. Tolerance on 3 place decimals ±.010(.25) except as noted. 2. Max. is largest dimension allowed. 3. Dimensions in inches over millimeters. Pad 1 2 3 4 Function Main Output Main Input Forward Coupled Port Reverse Coupled Port 3. Applications of directional couplers include monitoring of incident and reflected power, signal sampling for control loops and test signal injection devices in BITE. 03May96 For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531