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.
Sinuous antennas provide wide bandwidth, dual polarisation and wide beamwidths
Our range 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.
Steatite’s standard and custom-built sinuous antennas are ideal for direction finding, ELINT, RWR (Radar Warning Receivers) and ESM (Electronic Support Measures) applications.
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.
QMS CODE | CATALOGUE NUMBER | DESCRIPTION | FREQUENCY | GAIN | BEAMWIDTH (3DB) | VSWR | POWER (C.W) | CONNECTOR | DATASHEET |
QMS-00015 | QSI-DL-2-18-S-SG | 2 - 18 GHz Dual Linearly Polarised Sinuous Antenna fitted with SMA type Connectors | 2 to 18 GHz | -4.4 to 5 dBi | 64 to 109 | < 3.2:1 Typical | 1W | 2 x SMA type jack |  |
QMS-00035 | QSI-DL-0.2-2-S-SG | 0.2 - 2 GHz Dual Linearly Polarised Sinuous Antenna fitted with SMA type Connectors | 0.2 to 2 | -4.2 to 3.6 dBi | 69 to 92 | < 2.4:1 Typical | 10W | 2 x SMA jack | |
QMS-00036 | QSI-DL-0.2-2-N-SG | 0.2 - 2 GHz Dual Linearly Polarised Sinuous Antenna fitted with N type Connectors | 0.2 to 2 | -4.2 to 3.6 dBi | 69 to 92 | < 2.4:1 Typical | 10W | 2 x N type jack | |
QMS-00037 | QSI-DL-0.4-2-N-SG-R | 0.4 - 2GHz Dual Linearly Polarised Sinuous Antenna fitted with N type Connectors and a Radome | 0.4 to 2 | 1.3 to 6.4 dBi | 62 to 84 | < 3.6:1 Typical | 4W | 2 x N type jack | |
QMS-00040 | QSI-DL-0.7-4-S-SG | Dual Linearly Polarised Sinuous Antenna | 0.7 to 4 | 0 to 4.1 dBi | 55 to 94 | < 2.6:1 Typical | 10W | 2 x SMA type jack | |
QMS-00043 | QSI-DC-0.7-4-S-SG | 0.7 - 4 GHz Dual Circularly Polarised Sinuous Antenna | 0.7 to 4 | -1 to 2.2 dBiC | 55 to 102 | < 1.4 : 1 Typical | 2W | 2 x SMA jack | |
QMS-00044 | QSI-DC-2-18-S-SG-L | 2 - 18 GHz Dual Circularly Polarised Sinuous Antenna fitted with SMA type Connectors and Lensed Radome | 2 to 18 | -5.2 to 2.6 dBiL | 43 to 95 | < 2 :1 Typical | 2W | 2 x SMA type jack | |
QMS-00045 | QSI-DC-2-18-S-SG | 2 - 18 GHz Dual Circularly Polarised Sinuous Antenna fitted with SMA type Connectors | 2 to 18 | -7 to -0.3 dBiL | 62 to 89 | < 2 :1 Typical | 2W | 2 x SMA Jack (Port A LHCP, Port B RHCP) | |
QMS-00338 | QSI-DL-2-18-S-SG-L | 2 - 18 GHz Dual Linearly Polarised Sinuous Antenna fitted with an SMA type Connector and Lensed Radome | 2 to 18 | -2.5 to 6 dBiL | 42.4 to 111 degrees | < 2.4:1 Typical | 1W | 2 x SMA type jack | |
QMS-00360 | QSI-DL-0.5-3-S-SG-R | 0.5 - 3 GHz Dual Linearly Polarised Sinuous Antenna fitted with SMA type Connectors and Radome | 0.5 to 4 | -0.6 to 6 dBi | 56 to 96 | 2:1 Typical | 2W | 2 x SMA type jack | |
QMS-00487 | QSI-DL-2-24-S-SG-R | 2 - 24 GHz Dual Linearly Polarised Sinuous Antenna fitted with SMA type Connector and a Radome | 2 to 18 | -3.5 to 3.7 dBi | 56 to 125 | < 3.0:1 Typical | 5W | 2 x SMA jack | |
QMS-00488 | QSI-DL-2-24-S-SG | 2 - 24 GHz Dual Linearly Polarised Sinuous Antenna fitted with SMA type Connectors | 2 to 24 | -6.4 to 4.0 dBi | 56 to 139 | < 3.0:1 Typical | 5W | 2 x SMA jack | |
