Sinuous Antennas

COTS. Dual Linear. Dual Circular. Polarised.

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.

Sinuous Antennas Specification

QMS CODE

CATALOGUE NUMBER

DESCRIPTION

FREQUENCY

GAIN

BEAMWIDTH (3DB)

VSWR

POWER (C.W)

CONNECTOR

DATASHEET

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

HTML tutorial

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

HTML tutorial

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

HTML tutorial

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

HTML tutorial

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

HTML tutorial

QMS-00043

QSI-DC-0.7-4-S-SG

0.7 - 4 GHz Dual Circularly Polarised Sinuous Antenna
fitted with SMA type Connectors

0.7 to 4

-1 to 2.2 dBiC

55 to 102

< 1.4 : 1 Typical

2W

2 x SMA jack

HTML tutorial

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

HTML tutorial

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

HTML tutorial

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)

HTML tutorial

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

HTML tutorial

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

HTML tutorial

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

HTML tutorial

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Phone

01568 617 920