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| QHDZ-2BH-0.33G QUAD HYBRID REV: 004, 09/21/06 TECHNICAL DESCRIPTION FEATURES * 225 - 400 MHz * LOW LOSS * HIGH ISOLATION * EXCELLENT PHASE/AMPLITUDE BALANCE * HIGH POWER HANDLING * SURFACE MOUNT APPLICATIONS * BASE STATION POWER AMPLIFIERS The QHDZ-2BH-0.33G series is a member of the Multi-Mix QHDZ family of 3-dB 90 couplers for use in the 225-400 MHz range. The QHDZ-2BH-0.33G 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) 225 - 400 VSWR (MAX, ALL PORTS) 1.20:1 INSERTION LOSS (dB MAX) 0.20 AMPLITUDE BALANCE (dB MAX) 0.4 PHASE BALANCE 90 3 ISOLATION (dB MIN) 20 AVERAGE POWER (WATTS, MAX.) RF INTERFACE OPERATING TEMPERATURE -55 - +95 C 125 Leadless Surface Mount PACKAGE OUTLINE / TAPE & REEL ORIENTATION DIRECTION OF FEED 0.070 P 0 P PAD 1 K 1 0 1.000 0.080 TYP. PORT 2 0.080 TYP. PORT 1 "A" W "A" B0 0.500 QHDZ-2BH-0.33G 0.050 TYP. MARKED SIDE UP PORT 3 0.050 TYP. PORT 4 A0 SECTION "A"-"A" W ENGLISH (in) 1.732 P 1 0.63 P0 A0 0.157 0.512 13.00 B0 1.012 25.70 K0 0.144 3.67 METRIC (mm) 44.00 16.00 4.00 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-0.33G Coupling -2 -2.2 -2.4 Isolation (dB) Coupling (dB) -2.6 -2.8 -3 -3.2 -3.4 -3.6 -3.8 -4 225 242.5 260 277.5 295 312.5 330 Frequency (MHz) 347.5 365 382.5 400 -40 225 242.5 260 277.5 295 312.5 330 Frequency (MHz) 347.5 365 382.5 400 Direct Coupled Isolation 0 -5 -10 -15 -20 -25 -30 -35 VSWR Port 1 1.3 1.25 1.2 VSWR 1.15 1.1 1.05 1 225 Phase Balance -85 Port 2 Port 3 Port 4 -86 -87 Phase (degrees) -88 -89 -90 -91 -92 -93 -94 -95 225 242.5 260 277.5 295 312.5 330 Frequency (MHz) 347.5 365 382.5 400 242.5 260 277.5 295 312.5 330 Frequency (MHz) 347.5 365 382.5 400 MOUNTING CONFIGURATION 50 OHM LINE .032 DIELECTRIC THICKNESS ER= 3.38 .845 .055 TYP. .505 .345 .080 Ground plane of unit should be soldered to ground plane of circuit board for optimum performance .074 .074 GROUND PLANE 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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