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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, fo, MHz 10 to 100 Phase Shift Range at fo 360 min. Usable Bandwidth fo 5%
GENERAL SPECIFICATIONS
Insertion Loss: Impedance: VSWR: CW Power: Screw Drive: 1.75 dB max. 50 nom. 2.0:1 max 1 Watt max. 32 turns nom., plus toggle switch
For complete Model Number replace ***with desired Center Frequency, fo in MHz.
Package Outline
Control direction for increasing phase shift:Clockwise Weight, nominal: 1.5 oz. (42 g) Operating Temp: -- 55 to +85C 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 tM ERRI AC /41 Faifel Pl,W estCal el,NJ,07006 / 973o ur h r n o ma in o t c M ri d . dw l 5751300 /FAX 973- 0531 575-

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