PSM-2A Series
PHASE SHIFTERS, MANUAL
10 to 500 MHz / 0 to 90 / 10% Bandwidth / Multi-Turn Adjustment, High Resolution Units
PRINCIPAL SPECIFICATIONS
Model
Number
PSM-2A-60
PSM-2A-**B
Center
Frequency,
f
o
, MHz
60
10 to 500
Usable
Bandwidth,
MHz
57 - 63
f
o
±
5%
GENERAL SPECIFICATIONS
Phase Shift Range:
90° min. @ f
o
Insertion Loss:
1.5 dB max.
Impedance:
50
Ω
nom.
VSWR:
1.6:1 max.
Screw Drive:
Multi-Turn
Turns for maximum phase shift:
10 MHz to 125 MHz: 32 turns nom.
125 MHz to 500 MHz: 18 turns nom.
CW Power:
0.5 Watts max.
Weight, nominal:
2 oz (58 g)
Operating Temp:
-- 55° to +85°C
For complete Model Number replace ** with desired Center Frequency, f
o
in MHz.
Typical Performance Data
General Notes:
1. The PSM-2A series provides continuous phase shift in
the range of 0° to 90° using a multi-turn adjustment screw.
2. These phase shifters employ lumped element
quadrature hybrids with capacitor tuned LC networks
acting as sliding short circuits on the outputs. The
electrical length of the short effectively delays the reflected
signal which appears at the isolated port of the quadrature
hybrid.
Package Outline
22Feb96
NOTES:
1. Tolerance on 3 place decimals
±
.020(.51) except as noted.
2. Insertion phase increases with clockwise rotation of screw.
3. Dimensions in inches over millimeters.
For further information contact
MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531
Analogue and Mixed Signal
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