QHD-2H-1.85G QUAD HYBRID REV: 003, 04/26/05 TECHNICAL DESCRIPTION FEATURES • 1.5 - 2.2 GHz • LOW LOSS • HIGH ISOLATION • EXCELLENT PHASE/AMPLITUDE BALANCE • SURFACE MOUNT • TAPE & REEL AVAILABLE APPLICATIONS • DCS 1800 BASE STATION RF SUBSYSTEMS • PCS 1900 BASE STATION RF SUBSYSTEMS • MILITARY COMMUNICATIONS • TELEMETRY The Multi-Mix® QHD series provides a 3 dB 90° coupling with low insertion loss, low VSWR, and high isolation. Accurate phase and amplitude balance make this series ideal for use in IQ networks, power amplifiers, radio transceivers, receiver multicouplers and RF signal distribution and processing equipment. QHD quad hybrids are fusion bonded multilayer stripline devices. The fusion bonding process yields a homogeneous monolithic dielectric structure with reliability, ruggedness, and electrical performance that is superior to conventional adhesive bonding techniques. GENERAL SPECIFICATIONS FREQUENCY RANGE MHz INSERTION LOSS (dB MAX) 1700 - 2000 1500 - 2200 0.20 INPUT POWER (CW @ 1.2:1 LOAD VSWR) 150 W VSWR (ALL PORTS) 1.15:1 1.18:1 AMPLITUDE BALANCE (dB MAX) PHASE BALANCE ISOLATION (dB MIN) ± 0.25 ± 0.35 90 ± 2.5° 24 21 SIZE (INCHES) WEIGHT (OZ./GRAMS) RF INTERFACE OPERATING TEMPERATURE 0.56 x 0.35 x 0.075 0.03 / 0.8 Surface Mount -55° - +85° C PACKAGE OUTLINE / TAPE & REEL ORIENTATION DIRECTION OF FEED .560 [14.22] PORT 2 PORT 1 .050 [1.27] P0 PAD 1 P 0 "A" .350 [8.89] K 1 "A" B0 W QHD-2H-1.85G MARKED SIDE UP PORT 3 .024 [0.61] PORT 4 A0 SECTION "A"-"A" W P1 P0 A0 B0 K0 ENGLISH (in) 1.2598 0.6299 0.1575 0.3598 0.5697 0.0799 METRIC (mm) 32.00 .075 [1.91] 16.00 4.00 9.14 14.47 2.03 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 VSWR Port 1 Coupled -2.00 1.30 -2.20 1.27 -2.40 1.24 -2.60 1.21 -2.80 1.18 VSWR Coupling (dB) Direct -3.00 Port 2 Port 3 Port 4 1.15 -3.20 1.12 -3.40 1.09 -3.60 1.06 -3.80 1.03 -4.00 1500 1570 1640 1710 1780 1850 1920 1990 2060 2130 1.00 1500 2200 1570 1640 1710 1780 Frequency (MHz) 1850 1920 1990 2060 2130 2200 1990 2060 2130 2200 Frequency (MHz) Isolation Phase Balance 0 -85.00 -5 -86.00 -10 -87.00 -15 -88.00 -20 Phase (degrees) Isolation (dB) QHD-2H-1.85G TYPICAL PERFORMANCE -25 -30 -89.00 -90.00 -91.00 -35 -92.00 -40 -93.00 -45 -94.00 -50 1500 1570 1640 1710 1780 1850 1920 1990 2060 2130 -95.00 1500 2200 1570 1640 1710 1780 Frequency (MHz) 1850 1920 Frequency (MHz) 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] 0.351 [8.91] GROUND VIAS PLATED THRU 0.050 [1.28] 0.250 [6.35] 0.0630 [1.60] GROUND PLANE 0.068 [1.73] 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