Sinuous Spiral, Dual Polar Directional Antenna

14 August 2013

SSA0218RL/2044, Sinuous Spiral Antenna with Dual Circular PolarisationCobham Antenna Systems has developed a sinuous Spiral Antenna which is particularly suitable for Direction Finding, Electronic Warfare, security and surveillance applications. Its rugged, machined housing makes it ideal for use in harsh environments.

All development engineering and manufacture is carried out in the UK which means that the antenna is not subject to ITAR.

Ultra-wideband, frequency range is 2 to 18GHz. Directional, the Beamwidth is 65° to 95° in azimuth and elevation with a maximum Beam Squint of only ±4° to -3dB points across the band.

Dual circular (Right and Left Hand) polarisation over the entire band means that there is no likelihood of any frequency being missed at any polarisation. The good, consistent, monotonic radiation patterns enable Direction Finding (DF) systems to provide accurate Angle of Arrival data when using amplitude comparison techniques. Amplitude matched sets of antennas can be provided.

Dimensions 84mm (3.3"), by 67mm (2.6") diameter, weight 250 grams (8.8 ounces).

Model reference SSA0218RL/2044, Sinuous Spiral Antenna with Dual Circular Polarisation.

For more information or datasheets please contact us at, or call us on +44 (0)1638 732177.