Product/Service

Model 267 Pulse/CW TWT Amplifier

Source: Applied Systems Engineering, Inc.
The Model 267 is a dual mode Pulse/CW TWT Amplifier which has been designed to operate TWT's up to 40 watts in the 18 to 26.5 and 26.5 to 40 GHz frequency ranges
The Model 267 is a dual mode Pulse/CW TWT Amplifier which has been designed to operate TWT's up to 40 watts in the 18 to 26.5 and 26.5 to 40 GHz frequency ranges. The RF output pulse is generated by the focus electrode (grid) pulse without the use of RF switches. RF output pulse is controlled by the input video 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 267 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:

  • Frequency 18-40 GHz
    Octave / Multioctave

  • Low Spurious Outputs

  • Phase and Amplitude Stability

  • RF Output Fidelity

  • Complete TWT Protection
    PRF Limit
    Helix Overcurrent
    Cathode Over/Undervoltage
    Collector Overvoltage
    Filament Low Voltage
    Overtemperature
    Input Energy Limit
    Reverse Power Monitor

  • 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
    Collector Voltage(s)
    Helix Current
    Filament and Operate Time

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

Applied Systems Engineering, Inc., 7510 Benbrook Parkway, P.O. Box 122987, Fort Worth, TX 76121. Tel: 817-249-4180; Fax: 817-249-3413.