This product comes from Alaris Antennas catalogues

High-Power LPDA Antenna


The LPDA is a directional log-periodic dipole array primarily designed for EW high-power applications to cover the 30 MHz to 2500 MHz frequency band with a typical gain of 7 dBi. The polarisation is adjustable between vertical and horizontal without lowering the mast. For quick deployment applications this antenna is supplied with a boom that breaks into three sections and all the elements can be removed and stored in a roll-up canvas bag for compact storage. The antenna can be assembled and erected within 10 min by two people. For fixed installations the boom and elements are configured for a more permanent erection.

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Frequency range 30 - 2500 MHz *
VSWR 1.75:1 typical
Nominal input impedance 50 O
Feed power handling 1000 W up to 1 GHz
Gain > 4 dBi (6 dBi typical)
Beamwidth E-plane
Beamwidth H-plane
Polarisation Adjustable: vertical and horizontal
Connector 7/16 female
Dimensions (w x l) 5000 mm x 6150 mm
Material Aluminium
Mass LPDA-A0050 38 kg
MTBF 50000 hours
Wind survival 160 km/h (theoretical)
Temperature range - 30 °C to + 65 °C

    Product Applications

    Electronic Countermeasures
  • Communications Jamming
  • Communications
  • Point-to-point Communications

    Design Features

  • Wideband frequency 30 MHz to 2500 MHz Low VSWR High gain of typically 7 dBs over 90% of the band Rugged construction and compact packaging for quick deployment applications Easy to assemble and disassemble ( 10 minutes for two people) Also configured for fixed applications