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Horizontal Log Periodic Dipole Arrays 3-30MHz

Rev : 02 | Rev date : 25 Nov 2021

The HLP330 Log Periodic Antenna is a high performance, directional, horizontally polarized antenna designed for medium and long-range communication circuits. 


•    Proven, rugged RFS design. Installed in the most demanding locations over many decades.
•    Characterized by high gain performance while maintaining an excellent front-to-back ratio.
•    Take-off angles are optimised for medium and long-range communication.
•    Option of either hard drawn copper or stainless steel antenna elements.
•    Virtually ground independent radiation patterns.
•    The HLP has been designed for incorporation into multi-element linear arrays or rosette configurations.
•    The rugged design of the antenna ensures its suitability for cyclonic regions and wind velocities up to 310km/h (193 mph).

Example of 6 elements sharing common masts in a rosette configuration

Technical features

Electrical Specifications

Gain dBiUp to 13.3, refer to graph on page 2
Azimuth Radiation PatternDirectional - refer plots on page 2
VSWR<2.0:1 max, 1.5:1 typical
Maximum Power Rating kW20 average, 40 PEP
Input ConnectorN-type (1kW)1-5/8" EIA (10kW)3-1/8" EIA (20kW)
Impedance (unbalanced), ohmsΩ50

Mechanical Specifications

Wind Survival Rating (no ice) km/h (mph)310 (193)
Wind Load Commentto AS1170:2.2011


Material - GuysGalvanised steel. Stainless steel option
Material - MastHot dipped galvanised steel

External Document Links