18.0 GHz to -26.5 GHz Standard Gain Horn

Ships in 2-3 weeks if in stock
Waveguide Type
Frequency, Min (GHz)
Frequency, Max (GHz)
2.92 mm
CW Power Handling (Watts)
15 W
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Standard Gain Horns are used in antenna test range applications, and have been designed to deliver accurate and reliable antenna gain measurements. The horns are available to cover the frequency range from 18 to 26.5 GHz. They are designed and manufactured to provide many years of reliable utilization. NRL curves for peak gain are provided with each antenna.

  • Precision gain calibration standard
  • Robust welded mechanical design
  • Compliant with NRL-4433 standard
  • Linear polarization
  • Low VSWR


Model ANT-SGA-18-26.5
Frequency Range (GHz) 18.0–26.5
Material Aluminum
Waveguide Type WR-42
Nominal Gain (dBi) 24.6
VSWR <1.5:1
CW Power Handling (W) 15
RF Connector 2.92 mm


Our Standard Gain Horns are offered in six configurations. Model numbers with the prefix ANT-SGH are offered as a gain horn with a standard waveguide flange. Model numbers with the prefix ANT-SGA are offered as a complete assembly with a coax input port, mounting cage and optional absorber:

Model Configuration
ANT-SGH (Standard Gain Horn) Standard Gain Horn (SGH), Horn Only
SGH with Coax to Waveguide Adapter
ANT-SGA (Standard Gain Horn Assemblies) SGH with Mid-flange and Coax to Waveguide Adapter
SGH with Cage Only
SGH with Cage and Absorber
SGH with Cage and Large Absorber


See Terms & Conditions in footer.

Typical Measured Data

WR-42 SGH E-Plane

WR-42 SGH H-Plane