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0.9 - 20 GHz Omni-directional Antennas

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This omni-directional antenna provides operation over an extremely wide bandwidth from an incredibly small antenna size. This antenna has been previously used for communications to aircraft as the antenna has its peak gain in a slightly upward looking direction.

Model Number QOM0.9-20S



  • Compact size
  • Fully weather proof
  • Vertically Polarised
  • Extremely wide bandwidth
  • VSWR <1.7:1 over most of the band (3:1 max.)
  • Lightweight
  • An test report including gain against frequency is provided with each antenna
  • This is just one of the designs that we produce. We are happy to discuss any specific frequency band, polarisation, gain or beamwidth requirements


Contact us to discuss your particular needs



Frequency 0.9 - 20 GHz
Gain (Peak) 0 - 6.3 dBi 'peak gain above horizon'
Azimuth Gain Ripple +/- 1 dB
Antenna Factor (Peak) 29 - 52 dB/m
3dB Beamwidth Elevation
61° - 12°
Typical VSWR 1.7:1 max. VSWR 3:1
Construction Aluminium / Composite Material
Power Handling 40 Watts c.w.
Weight 0.26 kg
Dimensions - max 105 mm diameter x 120 mm tall
Mounting Customer Specified


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