
Package Outline
PSAM Series
500 to 2500 MHz / 0 to 180 and 0 to 360 / 10% Bandwidth / Voltage Controlled / SMA
PHASE SHIFTERS, ANALOG
For further iformatin contact
MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531
GENERAL SPECIFICATIONS
Bandwidth:
Insertion Loss:
PSAM-3 series@ 1 GHz:
10% of f
o
3 dB typ.
@ 2.5 GHz: 4 dB typ.
PSAM-4 series@ 1 GHz:
4 dB typ.
@ 2.5 GHz: 6 dB typ.
Modulation Rate:
Impedance:
VSWR:PSAM-3 series:
PSAM-4 series:
Input Power:
Control Voltage for
full range:
Connectors:
Weight, nominal:
Phase Stability, typical:
PSAM-3 series:
PSAM-4 series:
Operating Temp:
*Unit may be operated at +10 dBm in reduced control range
of 1.5 - 15 V. (+30 V no damage)
1% of f
o
nom.
50
nom.
2.0:1 max.
2.5:1 max.
0 dBm max.*
0.5 to +30 V
max.
SMA Female
4 oz. (112 g)
0.1° per °C
0.2° per °C
-- 55° to +85°C
OPTIONAL SPECIFICATIONS
Lower Frequencies:
Flatpack Version:
see PSEM series
see PEF series
PRINCIPAL SPECIFICATIONS
Center
Frequency,
f
o
, GHz
0.5 to 2.5
0.5 to 2.5
Phase
Shift
Range
180° at f
o
360° at f
o
Model
Number
PSAM-3-***B
PSAM-4-***B
For complete Model Number replace *** with desired Center Frequency, f
o
in MHz.
General Notes:
1. The PSAM series of voltage controlled analog phase shifters controls phase shift using a voltage of 0 to +30V. On PSAM-3 models the full
range is from 0° to 180° and on PSAM-4 this is extended to 0° to 360° by cascading two similar 180° phase shifters.
2. Each phase shifter element employs Filmbrid
quadrature hybrids with matched pairs of varactor tuned LC networks acting as sliding short
circuits on the outputs. The electrical length of short effectively delays the reflected signal which appears at the isolated port of each quadrature
hybrid.
3. Similar phase shifters are available in a variety of packages including catalog models in flatpacks and Meri-Pacs.
4. Merrimac phase shifters are designed for high reliability and can be supplied screened to meet specific military and space applications.
15Feb96
NOTES:
±
.020(.51) except as noted.
1. Tolerance on 3 place decimals