PSM-4E Series
PHASE SHIFTERS, MANUAL
10 to 100 MHz / 0 to 180 Continuous Plus 180 Switch / 10% Bandwidth / SMA Connectors
PRINCIPAL SPECIFICATIONS
Model
Number
PSM-4E-**B
Center
Frequency,
f
o,
MHz
10 to 100
Phase
Shift
Range at f
o
360° min.
Usable
Bandwidth
f
o
±
5%
GENERAL SPECIFICATIONS
Insertion Loss:
Impedance:
VSWR:
CW Power:
Screw Drive:
1.75 dB max.
50
Ω
nom.
2.0:1 max
1 Watt max.
32 turns nom., plus
toggle switch
For complete Model Number replace ***with desired Center Frequency, f
o
in MHz.
Package Outline
Control direction for
increasing phase shift:Clockwise
Weight, nominal:
1.5 oz. (42 g)
Operating Temp:
-- 55° to +85°C
Typical Performance
NOTES:
1. Tolerance on 3 place decimals
±
.020(.51) except as noted.
2. Dimensions in inches over millimeters.
General Notes:
1. The PSM-4E series of Phase Shifters provides continuously variable phase shift across the range of 0° to 180°. An additional 180° phase shift
can be switched in to provide a total range of 360°.
2. To realize variable phase shifts, these models employ a lumped element quadrature hybrid with a matched pair of L-C networks acting as
sliding short circuits on the outputs. The electrical length of the short effectively delays the reflected signal that appears at the isolated port of the
quadrature hybrid.
3. Merrimac phase shifters are designed for high reliability and can be supplied screened for specific applications.
15Feb96
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. ]
