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X281A Coaxial Waveguide Adapter, Type-N (f), 8.2 to 12.4 GHz

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Starting From US$ 507

Typical Configuration  

Typical Configuration

X281A Coaxial to Waveguide Adapter, Type-N female to WR-90, 8.2 to 12.4 GHz

  • R-51B-001-C Return to Keysight Warranty - 1 year


Prices for: United States

* Prices are subject to change without notice. Prices shown are Manufacturer's Suggested Retail Prices (MSRP). Prices shown are exclusive of taxes.

Key Features & Specifications


  • Frequency Range: 8.2 - 12.4 GHz

Superior RF performance

  • Maximum SWR: 1.25


  • Waveguide designator: EIA WR-90 MIL-W-85/1-078
  • Flange designator: UG-135/U MIL-F-3922/54C-008
  • Coaxial connector: Type-N female


The Keysight X281A adapter transforms waveguide transmission line into 50-ohm coaxial line. Power can transmitted in either direction, and each adapter covers the full frequency range of its waveguide band with SWR less than 1.3.