Dual-directional coupler, 1.90-4.0GHz

Manufacturer's part number :


Manufacturer Agilent Technologies

Keysight Technologies

Description :

The Keysight 777D is an economical dual-directional coupler designed for swept measurements in the 1.9 to 4.0 GHz range. Its high directivity and mean coupling accuracy of plus or minus 0.5 dB makes the Keysight 777D ideal for reflectometre applications. The auxiliary arms track very closely, making this coupler particularly useful for reflectometres driven by sweep oscillators.

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  • Nominal Coupling and Variation: 20 ±0.4 dB
  • Directivity: >30 dB
  • Maximum SWR: 1.2
  • Insertion Loss: <0.75 dB

Power Ratings

  • Power Rating Average, Peak: 50 W, 500 W


  • Dimensions: 225.4 mm L x 63.5 mm H x 28.6 mm W (8.88 in x 2.50 in x 1.13 in)
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