Compact Direction Finding Antenna System


The DFS-A0250 direction finding antenna system covers a frequency range of 400 MHz to 6000 GHz. The full-size elements on all bands give excellent DF sensitivity. Ultimate angular resolution for strong signals is well under 1° for most of the frequency range. Dipole elements provide good crosspolarization rejection, and fair performance for signals arriving from up to 15° above or below the horizon. This DF antenna is designed to be used either a 5- or 2-channel phase-sensitive receiver, and correlative algorithm. Characterization of the antenna can be performed on request.

Additional information

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Frequency range 400 - 6000 MHz
Polarisation Vertical
Nominal input impedance 50 O
Antenna type 5-element DF interferometer
Channels per band 5
Input VSWR < 2.5:1
Gain 8 ± 2 dB
Noise figure < 10 dB
OIP3 (typical) 30 dBm
Maximum input level 30 dBm CW
Power supply 19 - 36 V DC
Control interface EIA-485 (RS-485)
Switching time < 50 µS
Time to receive control byte (RS-485 115.2 kbps)
Total switching time < 150 µS

    Product Applications

    Signals Intelligence
  • Radio Direction Finding
  • C-ESM
  • Electronic Countermeasures
  • Counter UAV

    Design Features

  • Full-size, wideband DF. 5-element interferometer. Full Band Monitoring.