QHD-2H-1.9G
QUAD HYBRID
REV: 016, 04/26/05
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
AMPLITUDE
FREQUENCY RANGE
MHz
PHASE
BALANCE
ISOLATION
(dB MIN)
INSERTION LOSS
BALANCE
(dB MAX)
(dB MAX)
1930 - 1990
1700 - 2000
0.23
0.25
± 0.15
± 0.25
90 ± 2°
23
INPUT POWER
RF
OPERATING
VSWR
(CW @ 1.2:1
SIZE
WEIGHT
INTERFACE
TEMPERATURE
(ALL PORTS)
OUTPUT VSWR)
(INCHES)
(OZ./GRAMS)
1.17:1
1.18:1
100 W
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 1
PORT 2
.050 [1.27]
PAD 1
P
1
P
K
0
0
"A"
"A"
B
0
W
QHD-2H-1.9G
.024 [0.61]
.350 [8.89]
MARKED SIDE UP
PORT 4
PORT 3
A
0
SECTION "A"-"A"
W
P
1
P
0
A
B
K
0
0
0
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
.075 [1.91]
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