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ASKM 5/8–-0.9/18 circular antenna array 0.9–18 GHz (five frequency sets)

Product components:

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

ASKM 5/8-0.9/18 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 to 18 GHz in a circular azimuth coverage;

To increase the energy potential and direction finding accuracy, the operating range of the antenna system is divided into 5 frequency sets: 0.9–2 GHz, 2–4 GHz, 48 GHz, 8–12 GHz, 12–18 GHz;

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 a five-tier annular antenna array;

All-round field of view (360°) is ensured:

  • in the range of 0.9 to 2 GHz, by АS8.33 spiral antennas (8 pcs.);
  • in the range of 2 to 4 GHz, by cophasal antenna array (8 pcs.) based on AS4.89 log-periodic antennas (2 pcs.);
  • in the range of 4 to 8 GHz, by cophasal antenna array (8 pcs.) based on AS4.89 log-periodic antennas (2 pcs.);
  • in the range of 8 to 12 GHz, by AS6.56.3 broadband antennas (8 pcs.);
  • — in the range of 12 to 18 GHz, by AS6.56.4 broadband antennas (8 pcs.)

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

Gain

Directional diagram width at the level of minus 3 dB

0.9–2 GHz

-5.0 ÷ -3.0 dB

100 ÷ 90 deg.

2–4 GHz

6.0 ÷ 8.0 dB

60 ÷ 47 deg.

4–8 GHz

6.0 ÷ 8.0 dB

60 ÷ 40 deg.

8–12 GHz

11.5 ÷ 12.5 dB

40 ÷ 45 deg.

12–18 GHz

9.0 ÷ 11.5 dB

40 ÷ 47 deg.

Minimum frequency

0,9 GHz

Maximum frequency

18 GHz