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| QHDZ-2BH-0.15G QUAD HYBRID REV: 004, 10/16/06 TECHNICAL DESCRIPTION FEATURES * 130 - 174 MHz * LOW LOSS * HIGH ISOLATION * EXCELLENT PHASE/AMPLITUDE BALANCE * HIGH POWER HANDLING * SURFACE MOUNT APPLICATIONS * VHF LAND MOBILE RADIO BASE STATION POWER AMPLIFIERS The QHDZ-2BH-0.15G series is a member of the Multi-Mix QHDZ family of 3-dB 90 couplers for use in the 130-174 MHz range. The QHDZ-2BH-0.15G exhibits low insertion loss, low VSWR, and high isolation. Excellent phase and amplitude balance and high RF power handling capability make this series ideal for use in base station power amplifiers in particular and radio transceivers, receiver/antenna multicouplers and RF signal distribution and processing equipment in general. The construction of QHDZ quad hybrids is based on fusion bonded multiplayer stripline structures. The fusion bonding process yields homogeneous monolithic dielectric structures with reliability, ruggedness, and electrical and thermal performance that are superior to conventional adhesive bonding techniques. GENERAL SPECIFICATIONS FREQUENCY RANGE (MHz) 130-174 VSWR (MAX, ALL PORTS) 1.12:1 INSERTION LOSS (dB MAX) 0.35 AMPLITUDE BALANCE (dB MAX) 0.3 PHASE BALANCE 90 3 ISOLATION (dB MIN) 27 AVERAGE POWER (WATTS, MAX.) RF INTERFACE OPERATING TEMPERATURE -55 - +95 C 125 Leadless Surface Mount PACKAGE OUTLINE QHDZ-2BH-0.15G 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 QHDZ-2BH-0.15G Coupling Coupling -2 -2.2 -2.4 Isolation (dB) Coupling(dB) -2.6 -2.8 -3 -3.2 -3.4 -3.6 -3.8 -4 130 134 138 142 146 150 154 158 Frequency (MHz) 162 166 170 174 -50 -60 130 -20 -30 -40 -10 Isolation Direct 0 134 138 142 146 150 154 158 162 166 170 174 Frequency (MHz) VSWR Port1 1.3 Phase (degrees) 1.25 1.2 VSWR 1.15 1.1 1.05 1 130 Phase Balance Port3 Port4 -85 -86 -87 -88 -89 -90 -91 -92 -93 -94 -95 130 134 138 142 146 150 154 158 162 166 170 174 Port2 134 138 142 146 150 154 158 Frequency (MHz) 162 166 170 174 Frequency (MHz) 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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