PSM-2 Series
PHASE SHIFTERS, MANUAL
10 to 500 MHz / 0 to 90 / 10% Bandwidth / Multi-Turn Adjustment, High Resolution Manual Units
PRINCIPAL SPECIFICATIONS
Model
Number
PSM-2-***B
Center
Frequency,
f
o
, MHz
10 to 500
Usable
Bandwidth
f
o
±
5%
GENERAL SPECIFICATIONS
Phase Shift Range
90° min. @ fo
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
General Notes:
1. The PSM-2 series adjusts phase continuously with a
multi-turn screw from 0° to 90°.
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
15Feb96
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.
F rf t e if r to c n a t
M ERRI AC /41 Faifel Pl,W estCal el,NJ,07006 / 973-
o ur h r n o ma in o t c
M
ri d .
dw l
575-
1300 /FAX 973- 0531
575-
MERRIMAC [ MERRIMAC INDUSTRIES, INC. ]
