WR90 | WG16 | R100 Waveguide

WR90 | WG16 | R100 – Rectangular Waveguide Size

WR90 | WG16 | R100 Waveguide Size

  • EIA Standard:WR90
  • RSCS Standard (British Military):WG16
  • IEC Standard:R100

WR90 Specifications

  • Recommended Frequency Band:8.20 to 12.40 GHz
  • Cutoff Frequency of Lowest Order Mode:6.557 GHz
  • Cutoff Frequency of Upper Mode:13.114 GHz
  • Dimension:0.9 Inches [22.86 mm] x 0.4 Inches [10.16 mm]

Commonly Used for Microwave Link Bands

  • 10GHz
  • 10.5GHz
  • 11GHz (though see WR75 used in preference)
Microwave Waveguide WR90
Microwave Waveguide

Other Names:

UBR100, PBR100

These are  different flange types.  U = Unpressurised, P = Pressurised

What is a Waveguide?

A waveguide is an electromagnetic feed line that is used for high frequency signals. Waveguides conduct microwave energy at lower loss than coaxial cables and are used in microwave communications, radars and other high frequency applications.

The waveguide must have a certain minimum cross section, relative to the wavelength of the signal to function properly. If wavelength of the signal is too long (Frequency is too low) when compared to the cross section of the waveguide, the electromagnetic fields cannot propagate. The lowest frequency range at which a waveguide will operate is where the cross section is large enough to fit one complete wavelength of the signal.

For Further Information

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