Agilent / HP 355F
Coaxial Step Attenuator
Description
This unit provides precision step attenuation in 10dB steps from 0 to 120dB.
It's attenuator sections are inserted and removed by cam actuated micro switches which keep lead lengths short.
This units design minimizes stray capacitances and inductances, and keeps phase shift to a minimum.
This is a compact and rugged unit in which the component parts are rigidly positioned and well shielded so that neither stray pickup nor signal leakage is a problem.
It may be connected with the 355E in series to provide precision attenuation in 1dB steps from 0 to 132dB.
Either terminal may be connected as input or output.
Remote programming with rapid switching is simple via a 7 pin connector.
Key Points
+/- 3.0dB Accuracy
0.5W Average Power Handling Capable
Low insertion loss
Low SWR
7-pin connector
Specifications
Frequency range: DC to 1GHz
Attenuation range: 0 to 120dB, 10dB steps
Insertion loss at 0dB: 0.2dB + 2.3dB/GHz
Maximum SWR: 1.2 to 250MHz, 1.3 to 500MHz, 1.5 to 1GHz
Repeatability life: 0.03dB maximum, 0.5 million cycles per section.
Maximum RF input power: 0.5W (average), 350W (peak)
Connector type: BNC female
Programming connector: 7 pin.