ASKM 2/6–0.9/40 circular antenna array 0.9–40 GHz (two frequency sets)

Product components:

  • Antenna elements;
  • Units of the antenna-feeder path;
  • Radome;
  • Chassis for installing instrumentmodules.


ASKM 2/6-0.9/40 annular equispaced antenna array with 5 sets of frequencies is designed to receive signals from radio equipment with linear and circular polarization in the frequency range: of 0.9–18 GHz and 18–40 GHz in a circular azimuth coverage;

Recommended to be used as a direction-finding receiving antenna system of search and searchless robotic systems;

The antenna system is made in the form of two combined equispaced annular antenna arrays;

All-round field of view (360°) is ensured by six antenna components in the range of 0.9 to 18 GHz and six antenna components in the range of 18 to 40 GHz by electronical commutation of beams. Antenna arrays are offset relative to each other by 30 ° in the azimuth plane;

Antenna components are as follows:

– in the range of 0.9 to 18 GHz, АS8.33 spiral antennas;

– in the range of 18 to 40 GHz, АS8.37 spiral antennas;

Antenna system provides simultaneous spatial scanning in 2 or more independent channels;

Antenna system design provides for the installation of 3U instrument modules;

The product may be equipped with multi-channel frequency converters, as required by the customer.

Frequency set


Directional diagram width at the level of minus 3 dB

0.9–18 GHz

-5.0 ÷ 2.0 dB

100 ÷ 60 deg.

18–40 GHz

-4.0 ÷ 2.0 dB

50 ÷ 90 deg.


Minimum frequency

0,9 GHz

Maximum frequency

40 GHz