QHD-2Z-3.5G QUAD HYBRID REV: 005, 07/13/05 TECHNICAL DESCRIPTION FEATURES • 3.3 - 3.7 GHz • HIGH POWER…25 WATTS CW • LOW LOSS • LOW VSWR • SURFACE MOUNT • TAPE & REEL AVAILABLE APPLICATIONS • WIFI • WIRELESS LANS • POINT-TO-POINT RADIO • WiMAX The Multi-Mix® QHD-Z series provides a 3 dB, quadrature coupler with low insertion loss, high isolation, and high power handling in a small outline. Accurate phase and amplitude balance make them ideal for applications involving IQ networks, power amplifiers, signal distribution and processing. The QHD-Z series is an easy to install SMD designed specifically for the full spectrum of wireless applications. The high stability ceramic filled PTFE dielectrics utilized in these components are compatible with common substrates such as FR-4, G-10, and polyamide. The wrap around ground plane provides excellent EM shielding. GENERAL SPECIFICATIONS FREQUENCY RANGE GHz ISOLATION (dB MIN.) INSERTION LOSS (dB MAX) VSWR (MAX.) AMPLITUDE BALANCE (dB MAX.) 3.3 - 3.7 16 0.40 1.45:1 ±0.5 OPERATING TEMPERATURE PHASE BALANC E (MAX.) INPUT POWER (MAX.) SIZE (INCHES) WEIGHT (OZ.) RF INTERFACE 90 ± 3° 25 W 0.175 x 0.175 x 0.086 0.003 Surface Mount -55° - +85° C PACKAGE OUTLINE / TAPE & REEL ORIENTATION DIRECTION OF FEED P 0 0.175 PAD 1 K 0 MOUNTING ORIENTATION: MARKING DOT ON TOP SIDE 4 0.175 0.030 "A" "A" B0 0.054 1 3 W Ø0.031 P 1 MARKED SIDE UP SEE DETAIL A 2 TOP VIEW 0.007 .086 0.007 A 0 SECTION "A"-"A" NOTES: 1. ALL DIMENSIONS ARE IN INCHES. 2. TOLERANCES: -3 PLACE DECIMALS; ±.005. W ENGLISH (in) 0.4724 METRIC (mm) 12.00 P1 0.3150 8.00 P0 0.1575 4.00 A0 0.1949 4.95 B0 0.1988 5.05 K0 0.1083 2.75 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 -2 1.5 -2.25 1.45 1.4 -2.5 1.35 VSWR dB -2.75 S21 S41 -3 -3.25 1.2 1.1 -3.75 -4 3300 VSWR1 VSWR2 VSWR3 VSWR4 1.3 1.25 1.15 -3.5 1.05 3350 3400 3450 3500 3550 3600 3650 1 3300 3700 3350 3400 3450 F (MHZ) 3500 3550 3600 3650 3700 F (MHZ) Isolation Phase Balance 0 95 -5 94 -10 93 92 Degrees -15 -20 dB QHD-2Z-3.5G TYPICAL PERFORMANCE s31 -25 s42 -30 91 phase(IN 1) phase(IN 3) 90 89 -35 88 -40 87 86 -45 -50 3300 3350 3400 3450 3500 3550 3600 3650 85 3300 3700 3350 3400 3450 3500 3550 3600 3650 3700 F (MHZ) F (MHZ) MOUNTING GUIDELINES 0.1750 PLATED THROUGH HOLES TO GROUND PLANE Substrate Material = Rogers RO4003; 0.020" Thickness; 1 oz. Electrodeposited Copper Feed Transmission Lines = Grounded CPW; Line Width = 0.039" Line-Ground Spacing = 0.015" 0.1750 GROUND PLANE TRUTH TABLE 1 2 3 4 1 In 0 Isolated -90 2 0 In -90 Isolated 3 Isolated -90 In 0 4 -90 Isolated 0 In THE MULTI-MIX MICROTECHNOLOGY® GROUP IS ISO 9001:2000 REGISTERED Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006 Tel: 1.888.434.MMFM / Fax: 973.882.5990 / Email: [email protected] / www.merrimacind.com