5.85 GHz to 8.2 GHz Standard Gain Horn


Ships in 2-3 weeks if in stock
Waveguide Type:
Frequency, Min (GHz):
Frequency, Max (GHz):
CW Power Handling (Watts):
100 W
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Calculated at Checkout
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NSI-MI's standard gain horn (ANT-SGH) antennas are designed for reliable and precise gain measurements in antenna test range applications. Regardless of your specific application, we have a variety of sizes and shapes to suit the frequency range of 0.35 GHz to 110 GHz. Each horn is precision gain calibrated with low VSWR, comes with NRL curves for peak gain data, and has a robust welded mechanical design suitable for tough applications.


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


Model ANT-SGA-5.85-8.2
Frequency Range (GHz) 5.85–8.20
Material Aluminum
Waveguide Type WR-137
Nominal Gain (dBi) 22.6
VSWR <1.5:1
CW Power Handling (W) 100
RF Connector N-Female


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

Typical Measured Data

WR-137 SGH E-Plane

WR-137 SGH H-Plane