Quad Ridged Feeds

Model: ANT-QRF
NSI-MI quad ridged feeds (ANT-QRF) are used in antenna test range applications, and have been designed to deliver a wideband frequency response. The feeds are available to cover the frequency range from 0.5 to 18 GHz. The ANT-QRF are a good candidate for a compact range feed or use in spherical near-field measurements.

  • Robust mechanical design
  • Dual linear polarization
  • Wideband antenna


Datasheet Buy Now
  • Specifications
  • Applications
  • Includes
  • Available Add-Ons
ANT-QRF-0.5-1.5
Frequency Range 0.5–1.50
Material Aluminum
Nominal Gain 22.4 dBi
RF Connector N-Female
VSWR 2.1:1
Port-to-port Isolation -28 dB
ANT-QRF-1-3
Frequency Range 1.0–3.0
Material Aluminum
Nominal Gain 8 dBi
RF Connector N-Female
VSWR 1.5:1
Port-to-port Isolation -29 dB
ANT-QRF-2-6
Frequency Range 2.0–6.0
Material Aluminum with gold plating
Nominal Gain 8 dBi
RF Connector 3.5 mm - Female
VSWR 1.87:1
Port-to-port Isolation -31 dB
ANT-QRF-6-18
Frequency Range 6.0–18.0
Material Aluminum
Nominal Gain 7 dBi
RF Connector 2.9 mm - Female
VSWR 2:1
Port-to-port Isolation -36 dB
  • ANT-QRF Quad Ridged Feed
  • User manual
  • Mounting plate and post*
  • Absorber*

*Available for ANT-QRF-2-6 and ANT-QRF-6-18