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QHD-2H-0.9G
QUAD HYBRID
REV: 017, 04/22/05
TECHNICAL DESCRIPTION
FEATURES * 0.8 - 1.0 GHz * LOW LOSS * HIGH ISOLATION * EXCELLENT PHASE/AMPLITUDE BALANCE * SURFACE MOUNT * TAPE & REEL AVAILABLE The Multi-Mix(R) 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 800 - 1000 815 - 960 INPUT POWER (CW @ 1.2:1 OUTPUT VSWR) 100 W INSERTION LOSS (dB MAX) 0.25 0.23 AMPLITUDE BALANCE (dB MAX) 0.30 0.25 PHASE BALANCE 90 2 ISOLATION (dB MIN) 20 22
VSWR (ALL PORTS) 1.25:1 1.18:1
SIZE (INCHES) 0.56 x 0.35 x 0.075
WEIGHT (OZ./GRAMS) 0.03 / 0.8
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
"A"
"A" B0
.350 [8.89]
QHD-2H-0.9G
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
.075 [1.91]
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: crm@merrimacind.com / www.merrimacind.com
TYPICAL PERFORMANCE QHD-2H-0.9G
Coupling (Includes Fixture loss) -3.00 -3.10 Coupling (dB) -3.20 -3.30 -3.40 -3.50 0.80 0.00 -0.10 -0.20 -0.30 -0.40 -0.50 1.00 Loss (dB)
VSWR
1.30 1.25 1.20 VSWR 1.15 1.10 1.05 1.00 0.80
0.82
0.84
0.86
0.88
0.90
0.92
0.94
0.96
0.98
0.82
0.84
Port 1
0.86
0.88
Port 2
0.90
0.92
0.94
0.96
0.98
Port 4
1.00
Frequency (GHz) Direct Coupled Insertion Loss
Frequency (GHz)
Port 3
Isolation
-20 -22 Isolation (dB) -24 -26 -28 -30 0.8 0.82 0.84 0.86 0.88 0.9 0.92 0.94 0.96 0.98 1 Frequency (GHz)
Phase Balance
-87 -88 Phase (Degrees) -89 -90 -91 -92 -93 0.80
0.82
0.84
0.86
0.88
0.90
0.92
0.94
0.96
0.98
1.00
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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