
A- Flatpack Outline
General Notes:
1. The QHF-2A series of Quadrature Hybrids covers 1 MHz to 1000 MHz using
special lumped element circuits to minimize parts count and size for applications
requiring an ultra-miniature package. High performance is achieved in the
0.385" by 0.5" flatpack housing that is ideally suited to aerospace applications
where inherent package reliability and hermeticity are essential.
PRINCIPAL SPECIFICATIONS
Center
Frequency,
f
o,
MHz
60
Usable
Bandwidth,
MHz
57 - 63
f
o
±
5%
Isolation,
dB,
Min.
23
23
Insertion
Loss,
dB, Max.
0.3
0.3
Phase
Tolerance,
Max.
90°
±
2°
90°
±
2°
Amplitude
Balance,
dB, Max.
0.75 dB
0.75 dB
CW
Input*,
W
1
1
Model
Number
QHF-2A-60
QHF-2A-***B 1 -1000 MHz
VSWR,
Max.
1.3:1
1.3:1
For complete Model Number replace *** with desired Center Frequency, f
o
in MHz.
*CW input power with 1.2:1 VSWR
out
GENERAL SPECIFICATIONS
Coupling:
Weight:
Impedance:
Operating Temperature:
-- 3 dB nom.
0.1 oz (2.8g) nom.
50
nom.
-- 55° to +85°C
QHF-2A Series
1 to 1000 MHz / 10% Bandwidth Standard / Low Insertion Loss / Low Profile Hermetic Package
90 POWER DIVIDERS / COMBINERS
For further information contact
MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531
NOTES:
±.
010(.25) except as noted.
1. Tolerance on 3 place decimals
20Feb96
Phasing Diagram - A
1
2
0
°
0
°
-- 90
°
Isol
Isol
-- 90
°
3
4
1
2
3
4
-- 90
°
Isol -- 90
°
Isol
0
°