PSM-4E Series PHASE SHIFTERS, MANUAL 10 to 100 MHz / 0 to 180 Continuous Plus 180 Switch / 10% Bandwidth / SMA Connectors PRINCIPAL SPECIFICATIONS GENERAL SPECIFICATIONS Model Number Center Frequency, fo, MHz Phase Shift Range at fo Usable Bandwidth PSM-4E-**B 10 to 100 360° min. fo ± 5% For complete Model Number replace ***with desired Center Frequency, fo in MHz. Package Outline 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 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 ForfurtherinformationcontactM ERRIM AC /41 Fairfield Pl.,W estCaldw ell,NJ,07006 / 973-575-1300 /FAX 973-575-0531