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QHD-2H-3.0G
QUAD HYBRID
REV: 003, 04/26/05
TECHNICAL DESCRIPTION FEATURES * 2.0 - 4.0 GHz * LOWEST LOSS * HIGHEST ISOLATION * EXCELLENT PHASE/AMPLITUDE BALANCE * SURFACE MOUNT * TAPE & REEL APPLICATIONS * UMTS PA * WIFI * WILAN
The Multi-Mix(R) QHD series provides a 3 dB coupler with low insertion loss, low VSWR, and high isolation. Accurate phase and amplitude balance make them ideal for applications involving IQ networks, power amplifiers, signal distribution and processing. QHD quad hybrids are fusion bonded multilayer stripline assemblies. 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 2000 - 4000 INPUT POWER (CW @ 1.2:1 OUTPUT VSWR) 100 W INSERTION LOSS (dB MAX) 0.35 AMPLITUDE BALANCE (dB MAX) 0.5 PHASE BALANCE 90 3 ISOLATION (dB MIN) 17
VSWR (ALL PORTS) 1.50:1
SIZE (INCHES) 0.56 x 0.35 x 0.075
WEIGHT (OZ./GRAMS) 0.01 / 0.3
RF INTERFACE Surface Mount
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
.350 [8.89]
QHD-2H-3.0G
"A" W
"A" B0
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 METRIC (mm) 32.00 16.00 4.00 9.14 14.47 2.03 W
.075 [1.91]
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
TYPICAL PERFORMANCE QHD-2H-3.0G
Coupling and Loss
(Includes Fixture Loss) -2.80 -2.90 -3.00 -3.10 -3.20 -3.30 -3.40 -3.50 -3.60 -3.70 -3.80 2.00 0.20 0.10 0.00 -0.10 -0.20 -0.30 -0.40 -0.50 -0.60 -0.70 -0.80 4.00
Phase Balance
95 Phase Balance (Degrees) 94 93 92 91 90 89 88 87 86 85 2.00 2.20 2.40 2.60 2.80 3.00 3.20 3.40 3.60 3.80 4.00
Coupling (dB)
2.20
2.40
2.60
2.80
3.00
3.20
3.40
3.60
3.80
Frequency (GHz)
Direct Coupled Insertion Loss
Loss (dB)
Frequency (GHz)
VSWR
1.50 1.40
Magnitude (dB) -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 2.00 2.20 2.40 2.60
Isolation
VSWR
1.30 1.20 1.10 1.00 2.00
2.20
2.40
2.60
2.80
3.00
3.20
3.40
3.60
3.80
4.00
Frequency (GHz)
Port 1 Port 2 Port 3 Port 4
2.80
3.00
3.20
3.40
3.60
3.80
4.00
Frequency (GHz)
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: crm@merrimacind.com / www.merrimacind.com

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