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 AMPLITUDE BALANCE (dB MAX) PHASE BALANCE 0.35 ± 0.3 90 ± 3° FREQUENCY RANGE (MHz) INSERTION LOSS (dB MAX) 130-174 ISOLATION (dB MIN) VSWR (MAX, ALL PORTS) AVERAGE POWER (WATTS, MAX.) RF INTERFACE 27 1.12:1 125 Leadless Surface Mount OPERATING TEMPERATURE -55° - +95° C PACKAGE OUTLINE QHDZ-2BH-0.15G THE MULTI-MIX MICROTECHNOLOGY® 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: [email protected] / www.merrimacind.com Coupling Coupling Isolation Direct 0 -2 -2.2 -10 Isolation (dB) Coupling(dB) -2.4 -2.6 -2.8 -3 -3.2 -20 -30 -40 -3.4 -50 -3.6 -3.8 -4 130 -60 130 134 138 142 146 150 154 158 Frequency (MHz) 162 166 170 134 138 142 Port1 146 174 150 154 158 162 166 170 174 158 162 166 170 174 Frequency (MHz) VSWR Phase Balance Port2 Port3 Port4 -85 1.3 -86 -87 Phase (degrees) 1.25 1.2 VSWR QHDZ-2BH-0.15G TYPICAL PERFORMANCE 1.15 1.1 -88 -89 -90 -91 -92 -93 -94 1.05 1 130 -95 130 134 138 142 146 150 154 158 Frequency (MHz) 162 166 170 134 138 142 174 146 150 154 Frequency (MHz) MOUNTING CONFIGURATION Ground plane of unit should be soldered to ground plane of circuit board for optimum performance TRUTH TABLE 1 2 3 4 1 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: [email protected] / www.merrimacind.com