Product/Service

Model 177 10kW TWT Amplifier

Source: Applied Systems Engineering, Inc.

Model 177 10kW TWT Amplifier
The Model 177 TWT Amplifier has been designed specifically to operate pulsed traveling wave tubes up to 10 kW peak power
The Model 177 TWT Amplifier has been designed specifically to operate pulsed traveling wave tubes up to 10 kW peak power, 5% duty cycle and at frequencies up to 18 GHz. Particular emphasis has been placed on the generation of the output RF pulse shape without the use of RF switches. Pulse width control is with an external pulse.

Internal power supplies are DC-DC converter designs with fast loop response times so that output level variations are minimal for any PRF including a non-periodic or burst type PRF. The modular power supplies and grid pulse generator have very low ripple, with attendant low phase noise in the TWT Amplifier.

The modular design of the Model 177 provides convenient accessibility to all elements in the TWT amplifier. Plug-in PC boards are accessible through the front panel. The PC card cover contains a legend for PC card located test points and controls. High voltage modules are encapsulated, plug-in assemblies. There is no exposed high voltage. Modules are interchangeable between all units regardless of frequency.

FEATURES:

  • Low Spurious Outputs

  • Phase and Amplitude Stability

  • Complete TWT Protection

    Pulse Input Protection
    Helix Overcurrent
    Cathode HVPS Crowbar
    Cathode Over/Undervoltage
    Filament Low Voltage
    Overtemperature
    Input Energy Limit
    Reverse Power Monitor

  • Custom Requirements

  • Solid State Except for the TWT

  • Front Panel Voltage Adjustments

  • Front Panel Fault Isolation

  • Modular Construction

  • DC TWT Filaments

  • Four Line Display
    Operating Mode
    Cathode Voltage
    Helix Current
    Filament and Operate Time

  • Front Panel Controls
    Power On / Off
    Operate
    Standby
    Fault Reset
    Local / Remote

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