Precision Variable Waveguide Phase Shifters any type

Polytechnic Research & Development Co, Inc. (PRD); Brooklyn, NY

Datos
Foro
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  • Año
  • 1944 ??
  • Categoría
  • Aparato de medida y servicio (Equipo de laboratorio).
  • Radiomuseum.org ID
  • 252119

 Especificaciones técnicas

  • Gama de ondas
  • Bandas de recepción puestas en notas.
  • Altavoz
  • - - No hay salida de sonido.
  • Material
  • Metálico
  • de Radiomuseum.org
  • Modelo: Precision Variable Waveguide Phase Shifters [any type] - Polytechnic Research &
  • Anotaciones

  • Microwave Phase Shifter: a dielectric element in the waveguide increases the electrical length. The physical length is maintained.
    Advantage: fixed mounting of waveguides.

    Disadvantage: usually slightly higher insertion loss than by the mechanical type.

    Differs from mechanical Phase Shifters, where by telescopic move the length of both physical and electical dimension is modified.

    phase shifting element is metalized glass, moved by the knob shown in photo, total travel of the element on this specific guide is just over .4 inches.

    Waveguide material is brass, silver plated.  based on 22X47mm waveguide internal dimesons, the photo shows an S band waveguide in a frequency range used for maritime communications.

     

     

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