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-SG QEL-ST-1-18-N-HG QEL-ST-2-18-N-SG-R
Gain (dBi)  -2 to 22.1 – DF & -2.4 to 6.4 – Omni 10 to 23 13 to 24
Antenna Type Reflector and Omni-directional Cylindrical paraboloid Cylindrical paraboloid
Polarisation Slant linear 45° Slant linear 45° Slant linear 45°
Azimuth beamwidtdh°
3.3 to 87 3 to 33 4 to 30
Elevation beamwidth °
15.3 to 81 – DF & 11 to 102 – Omni 42 to 20 20 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 Velocity 200 rpm max 200 rpm max 200 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