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Cobham Intros Ultra Wideband, Dual Polar, Sinuous Spiral Antenna
7 August 2013
CHEVELEY, United Kingdom - This newly developed
sinuous, spiral antenna is particularly suitable for security, surveillance
and EW applications. Its rugged, machined housing makes it ideal
for harsh environments.
development engineering and manufacture has been carried out in the
UK which means that the product is not subject to ITAR.
Ultra wideband, frequency covers 2 to 18 GHz.
Directional, the Beamwidth is 65° to 95° in azimuth and elevation, with
a maximum Beam Squint of only +/-4 degrees to -3 dB points across
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.
very good, consistent, monotonic radiation patterns enable Direction
Find (DF) systems to provide accurate Angle of Arrival data when using
amplitude comparison techniques. Amplitude-matched sets of antennas
can be provided.
Phase-matched sets of antennas can be
provided, with support radiation pattern data, to allow high resolution
Dimensions 84 mm (3.3”) by 67 mm (2.6”) diameter,
weight 250 grams (8.8 ounces).
SSA0218RL/2044, Sinuous Spiral Antenna with Dual Circular Polarisation.
This polar plot of the antenna's radiation pattern is measured
at 11 GHz. It shows the azimuth plot of the Left Hand
Circular polarisation and is an example of the excellent monotonic
This graph derived from the antenna's radiation pattern demonstrates
the peak gain performance over the 2 to 18 GHz frequency
The azimuth and elevation radiation patterns shown above in
X-Y format at 7 GHz demonstrate good stability in all cuts.
Full radiation pattern data is available.
in meeting the demand for data, connectivity and bandwidth in defense,
security and commercial environments. Offering a technically diverse
and innovative range of technologies and services, the Group protects
lives and livelihoods, responding to customer needs with agility that
differentiates it. The most important thing we build is trust. Employing
more than 10,000 people on five continents, the Group has customers
and partners in over 100 countries.
Contact for Technical
Head of Business Development, Cobham Antenna Systems, Microwave
Antennas, Newmarket, UK
+44 1638 732172
Posted August 7, 2013
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