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| QHD-2BH-0.9G QUAD HYBRID REV: 003, 06/19/06 TECHNICAL DESCRIPTION FEATURES * 800 - 1000 MHz * LOW LOSS * HIGH ISOLATION * EXCELLENT PHASE/AMPLITUDE BALANCE * SURFACE MOUNT APPLICATIONS * GSM 800 BASE STATION RF SUBSYSTEMS * GSM 900 BASE STATION RF SUBSYSTEMS * LAND MOBILE RADIO (LMR) SYSTEMS * RADAR COMMUNICATIONS RoHS Compliant * TV TRANSMITTERS The Multi-Mix(R) QHD series provides a 3 dB 90 coupling with low insertion loss, low VSWR, and high isolation. Accurate phase and amplitude balance make this series ideal for use in IQ networks, power amplifiers, radio transceivers, receiver multicouplers and RF signal distribution and processing equipment. QHD quad hybrids are fusion bonded multilayer stripline devices. The fusion bonding process yields a homogeneous monolithic dielectric structure with reliability, ruggedness, and electrical performance that is superior to conventional adhesive bonding techniques. GENERAL SPECIFICATIONS FREQUENCY RANGE (MHz) 815 - 900 800 - 1000 ISOLATION (dB MIN) 25 23 VSWR (MAX, ALL PORTS) 1.12:1 1.15:1 INSERTION LOSS (dB MAX) 0.12 0.15 AVERAGE POWER (WATTS, MAX.) AMPLITUDE BALANCE (dB MAX) PHASE BALANCE 0.15 90 2 RF INTERFACE OPERATING TEMPERATURE 450 Leadless Surface Mount -55 - +85 C PACKAGE OUTLINE QHD-2BH-0.9G THE MULTI-MIX MICROTECHNOLOGY(R) GROUP IS ISO 9001:2000 REGISTERED U.S. Patent 6,099,677 and other Patents Pending. Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006 Tel: 1.888.434.MMFM / Fax: 973.882.5990 / Email: crm@merrimacind.com / www.merrimacind.com TYPICAL PERFORMANCE QHD-2BH-0.9G Coupling -2 -2.2 -2.4 Coupling (dB) -2.6 -2.8 -3 -3.2 -3.4 -3.6 -3.8 -4 800 820 840 860 880 900 920 Frequency (MHz) 940 960 980 1000 -70 -80 800 Isolation (dB) Direct Coupled Isolation 0 -10 -20 -30 -40 -50 -60 820 840 860 880 900 920 Frequency (MHz) 940 960 980 1000 VSWR -85 1.3 1.25 Phase (degrees) 1.2 VSWR 1.15 1.1 1.05 1 800 Phase Balance Port 3 Port 4 -86 -87 -88 -89 -90 -91 -92 -93 -94 Port 1 Port 2 820 840 860 880 900 920 940 960 980 1000 -95 800 820 840 860 Frequency (MHz) 880 900 920 Frequency (MHz) 940 960 980 1000 MOUNTING CONFIGURATION Ground plane of unit should be soldered to ground plane of circuit board for optimum performance TRUTH TABLE 1 1 2 3 4 Input Iso -90 0 2 Iso Input 0 -90 3 -90 0 Input Iso 4 0 -90 Iso Input Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006 Tel: 1.888.434.MMFM / Fax: 973.882.5990 / Email: crm@merrimacind.com / www.merrimacind.com |
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