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| QHD-2N-0.56G QUAD HYBRID REV: 003, 06/16/06- TECHNICAL DESCRIPTION FEATURES * 450 - 700 MHz * LOW LOSS * HIGH ISOLATION * EXCELLENT PHASE/AMPLITUDE BALANCE * HIGH POWER HANDLING * SURFACE MOUNT APPLICATIONS * CDMA 450 BASE STATION POWER AMPLIFIERS * UHF LAND MOBILE RADIO BASE STATION POWER AMPLIFIERS * UHF RADAR The QHD-2N-0.56G series is a member of the Multi-Mix QHD family of 3-dB 90 couplers for use in the 450 - 700 MHz range. The QHD-2N-0.56G 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 radios for Homeland Security. The construction of QHD quad hybrids is based on fusion bonded multilayer 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) 450 - 700 PHASE BALANCE (MAX) 90 3 INPUT POWER (CW, MAX) 125 W ISOLATION (dB MIN) 20 SIZE (INCHES) 0.65 x 0.48 x 0.108 INSERTION LOSS (dB MAX) 0.25 WEIGHT (GRAMS/OZ.) 2.10 / .074 VSWR (MAX) 1.20:1 RF INTERFACE Surface Mount AMPLITUDE BALANCE (dB MAX) 0.3 OPERATING TEMPERATURE -55 - +85 C PACKAGE OUTLINE PORT 2 0.650 0.050 TYP. PORT 1 0.050 TYP. PORT 3 0.024 TYP. PORT 4 4X R. 0.0 52 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 0.480 QHD-2N-0.56G 0.108 TYPICAL PERFORMANCE QHD-2N-0.56G Coupling -2 -2.2 -2.4 Coupling (dB) -2.6 -2.8 -3 -3.2 -3.4 -3.6 -3.8 -4 450 475 500 525 550 575 600 Frequency (MHz) 625 650 675 700 -60 450 475 500 525 550 575 600 Frequency (MHz) 625 650 675 700 -50 Isolation (dB) -20 -30 -40 -10 Direct Coupled Isolation 0 VSWR -85 1.3 1.25 Phase (degrees) 1.2 VSWR 1.15 1.1 1.05 1 450 Phase Balance Port 3 Port 4 -86 -87 -88 -89 -90 -91 -92 -93 -94 Port 1 Port 2 475 500 525 550 575 600 625 650 675 700 -95 450 475 500 525 Frequency (MHz) 550 575 600 Frequency (MHz) 625 650 675 700 MOUNTING CONFIGURATION GROUND PLANE OF UNIT SHOULD BE SOLDERED TO GROUND PLANE OF CIRCUIT BOARD FOR OPTIMUM PERFORMANCE. 0.537 [13.64] GROUND PLANE S VIA H UND OUG GROD THR TE PLA 0.063 [1.60] 0.380 [9.65] 0.068 [1.73] 50 OHM LINE .032 DIELECTRIC THICKNESS ER = 3.38 TRUTH TABLE 1 1 2 3 4 Input Iso -90 0 2 Iso Input 0 -90 3 -90 0 Input Iso 0.034 TYP. [0.86] 0.050 [1.27] 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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