QUAD HYBRID REV: 004, 05/22/07 TECHNICAL DESCRIPTION · 1.7 - 2.0 GHz

QUAD HYBRID REV: 004, 05/22/07 TECHNICAL DESCRIPTION · 1.7 - 2.0 GHz · LOW LOSS · HIGH ISOLATION ·

QHD-2X-1.95G QUAD HYBRID REV: 004, 05/22/07 TECHNICAL DESCRIPTION · 1.7 - 2.0 GHz · LOW LOSS · HIGH ISOLATION · EXCELLENT PHASE/AMPLITUDE BALANCE · SURFACE MOUNT · TAPE & REEL AVAILABLE 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. 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 INSERTION LOSS (dB MAX) FREQUENCY RANGE GHz ISOLATION (dB MIN) 1.7 - 1.8 1.8 - 2.0 18 0.25 1.28:1 VSWR (MAX) AMPLITUDE BALANCE (dB MAX) PHASE BALANCE (MAX) INPUT POWER (CW, MAX) RF INTERFACE OPERATING TEMPERATURE ± 0.40 ± 0.30 90±3° 30 W Surface Mount -55° - +85° C PACKAGE OUTLINE / TAPE & REEL ORIENTATION PORT 2 0.250 DIRECTION OF FEED PORT 1 0.020 0.200 P 0 P 1 PAD 1 K 0 QHD-2X-1.95G "A" W "A" B0 Top View PORT 4 PORT 3 MARKED SIDE UP 0.04 A 0 SECTION "A"-"A" Side View 0.058 REF. ENGLISH (in) METRIC (mm) W 0.6299 16.00 P1 0.3150 8.00 P0 0.1575 4.00 A0 0.213 5.41 B0 0.2708 6.88 K0 0.0649 1.65 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: crm@merrimacind.com / www.merrimacind.com Coupling VSWR Port 1 Port 2 Port 3 Port 4 Direct 1.5 Coupled -2 -2.25 1.4 Coupling (dB) VSWR -2.5 1.3 1.2 -2.75 -3 -3.25 -3.5 1.1 -3.75 1 1700 1725 1750 1775 1800 1825 1850 1875 Frequency (MHz) 1900 1925 1950 1975 -4 1700 1725 1750 1775 2000 1800 1825 1850 1875 1900 1925 Frequency (MHz) 1950 1975 2000 Isolation Phase Balance 0 -85 -86 -5 Isolation (dB) -87 Phase (degrees) QHD-2X-1.95G TYPICAL PERFORMANCE -88 -89 -90 -91 -10 -15 -20 -92 -93 -25 -94 -30 1700 -95 1700 1725 1750 1775 1800 1825 1850 1875 Frequency (MHz) 1900 1925 1950 1975 2000 1725 1750 1775 1800 1825 1850 1875 Frequency (MHz) 1900 1925 1950 1975 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 0.180 [4.57] GROUND VIAS PLATED THRU 0.034 TYP. [0.86] 0.200 [5.08] 0.100 [2.54] 0.050 [1.27] 0.063 [1.60] 0.068 [1.73] GROUND PLANE TRUTH TABLE 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: crm@merrimacind.com / www.merrimacind.com 2000