ELINT Spinning DF Antennas

COTS and custom designed 0.5 to 40 GHz direction finding and omni-directional high performance spinning antenna subsystems.

The antennas are mounted on high speed rotating direct-drive positioners with complex scan control and are housed in RF-transparent, low-loss radomes. Cylindrical paraboloid reflectors are used, which provide a narrow azimuth beamwidth with broad elevation coverage. Suitable for ELINT, EW and Spectrum Management antennas applications.

Frequency (GHz)QEL-ST-0.5-18-N-SGQEL-ST-1-18-N-HGQEL-ST-2-18-N-SG-R
Gain (dBi) -2 to 22.1 – DF & -2.4 to 6.4 – Omni10 to 2313 to 24
Antenna TypeReflector and Omni-directionalCylindrical paraboloidCylindrical paraboloid
PolarisationSlant linear 45°Slant linear 45°Slant linear 45°
Azimuth beamwidtdh°
3.3 to 873 to 334 to 30
Elevation beamwidth °
15.3 to 81 – DF & 11 to 102 – Omni42 to 2020 to 35
Angular resolution °<0.1<0.1<0.1
VSWR (Typical)<2.5:1 – DF & <3.6:1 – Omni<2:1<2.5:1
Rotational Velocity200 rpm max200 rpm max200 rpm max

To find out more about Steatite Antennas or discuss specific requirements please contact on +44(0)1568 617920, or email sales.antennas@steatite.co.uk