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| QHD-2H-0.45G QUAD HYBRID REV: 003, 12/31/07 TECHNICAL DESCRIPTION FEATURES * 380 - 500 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 (400-500 MHz) The QHD-2H-0.45G series is a member of the Multi-Mix QHD family of 3-dB 90 couplers for use in the 380-500 MHz range. The QHD-2H-0.45G 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 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) 380 - 500 PHASE BALANCE (MAX) 90 5 INPUT POWER (CW, MAX) 100 W ISOLATION (dB MIN) 20 SIZE (INCHES) 0.56 x 0.35 x 0.155 INSERTION LOSS (dB MAX) 0.4 WEIGHT (GRAMS/OZ.) 1.5 / .053 VSWR (MAX) 1.20:1 RF INTERFACE Surface Mount AMPLITUDE BALANCE (dB MAX) 0.4 OPERATING TEMPERATURE -55 - +85 C PACKAGE OUTLINE / TAPE & REEL ORIENTATION .560 [14.22] PORT 2 PORT 1 P 0 P PAD 1 1 DIRECTION OF FEED .050 [1.27] K 0 "A" "A" B0 .350 [8.89] QHD-2H-0.45G W MARKED SIDE UP PORT 3 .024 [0.61] PORT 4 A0 SECTION "A"-"A" P P0 A0 B0 K0 1 ENGLISH (in) 1.2598 0.6299 0.1575 0.3598 0.5697 0.0799 W .155 [3.94] METRIC (mm) 32.00 16.00 4.00 9.14 14.47 2.03 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: MMFM@merrimacind.com / www.Multi-Mix.com TYPICAL PERFORMANCE QHD-2H-0.45G Coupling Coupled Direct Isolation 0 -5 -10 Magnitude (dB) -15 -20 -25 -30 -35 -40 -2 -2.2 -2.4 Magnitude (dB) -2.6 -2.8 -3 -3.2 -3.4 -3.6 -3.8 -4 380 400 420 440 Frequency (MHz) 460 480 500 380 400 420 440 Frequency (MHz) 460 480 500 VSWR Port 1 Port 2 Port 3 Port 4 Phase Balance -85 -86 -87 Phase (degrees) -88 -89 -90 -91 -92 -93 -94 1.25 1.20 1.15 1.10 1.05 1.00 380 VSWR -95 400 420 440 Frequency (MHz) 460 480 500 380 400 420 440 Frequency (MHz) 460 480 500 MOUNTING CONFIGURATION 50 OHM LINE .032 DIELECTRIC THICKNESS ER= 3.38 Ground plane of unit should be soldered to ground plane of circuit board for optimum performance 0.447 [11.35] 0.034 typ. [0.86] GROUND VIAS PLATED THRU 0.050 [1.28] 0.351 [8.91] 0.250 [6.35] 0.0630 [1.60] GROUND PLANE 0.068 [1.73] 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: MMFM@merrimacind.com / www.Multi-Mix.com |
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