This product comes from Alaris Antennas catalogues

High-Power Wire LPDA Antenna

LPDA-A0098
Active

The LPDA-A0098 is a high powered directional log-periodic dipole array designed for EW applications. It covers the 20 to 100 MHz, at 1 kW of power, with 6 dBi gain, or a 80° to 100° H-plane beamwidth. The polarisation is adjustable between vertical and horizontal without lowering the mast. The antenna is constructed using a collapsible wire technology. This makes the antenna lightweight and allows for compact storage, quick, easy deployment and mounting. All antenna elements are permanently attached to the boom, to prevent any parts from becoming lost in the field. Tension is maintained in the elements of the antenna by means of a non-conducting tensions system that is deployed at the back of the antenna. The tension system folds away next to the boom of the antenna during stowage.

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Specifications

Frequency range 20 - 100 Mhz
VSWR < 2.5:1
Nominal input impedance 50 O
Connector 7/16 female
Feed power handling 1000 W
Gain 6 dBi (typical)
E-plane 3 dB beamwidth 55°
H-plane 3 dB beamwidth 100°
Polarisation Adjustable upon installation
Deployed dimensions (l x h x w) Includes tensioning system 8550 mm x 560 mm x 6480 mm
Stowing dimensions (l x h x w) 6530 mm x 560 mm x 560 mm
Shipping dimensions (l x h x w) 3500 mm x 600 mm x 500 mm
Total mass 42 kg (excl. rotating bracket) 44 kg (incl. rotating bracket)
Mounting method Swivel bracket onto a mast
Exposed materials Aluminium

    Product Applications

    Electronic Countermeasures
  • Communications Jamming

    Design Features

  • Quick deployment Compact storage High gain High feed power handling Vertical or horizontal polarisation