COTS and custom designed Dual Linear and Dual Circular Polarised, sinuous antennas for direction finding, ELINT, RWR and ESM airborne, sea and ground-based applications.
The Steatite family of sinuous antennas simultaneously handle signals of any two orthogonal linear polarisations and simultaneous left and right-handed circular polarisations dependent on antenna design.
This provides intercept opportunities for a wide range of arbitrarily polarised signals, from devices also giving a wide bandwidth and broad beamwidth.
The sinuous antennas can also be used as feeds for reflector antennas where they give the advantage of a stable phase center across the frequency band.
As with other Steatite products, bespoke designs or modifications may be accommodated.
| Catalogue Number||Polarisation||Power|
|0.2 to 2||QSI-DL-0.2-2-S-SG||Dual Linear||10||<3.0:1||-4.2 to 3.6||91.6 to 69°||>35|
|0.4 to 2||QSI-DL-0.4-2-N-SG-R||Dual Linear||2||<3.6:1||1.3 to 6.4||62 to 48°||>34|
|0.5 to 3||QSI-DL-0.5-3-S-SG-R||Dual Linear||2||<2:1||-0.2 to 5.8||56 to 96°||>40|
|0.7 to 4||QSI-DL-0.7-4-S-SG||Dual Linear||10||<2.6:1||0 to 4.1||55 to 94°||>34|
|2 to 18||QSI-DL-2-18-S-SG||Dual Linear||1||<3.2:1||-3.8 to 4.4||64 to 109°||>32|
|2 to 24||QSI-DL-2-24-S-SG||Dual Linear||2||<3:1||-8 to 3||145 to 60°||>30|
|0.7 to 4||QSI-DC-0.7-4-S-SG||Dual Circular||2||<1.4:1||-1 to 2.2dBiC||102 to 56°||–|
|2 to 18||QSI-DC-2-18-S-SG-L||Dual Circular||2||<2:1||– 5.2 to 2.6dBiC||42.6 to 95°||–|