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Difference between Fanned beam vs Sector beam vs consecant square beam used in Radar

This page compares Fanned beam vs Sector beam vs consecant square beam and mentions difference between Fanned beam,Sector beam and consecant square beam used in radar.

The antennas which produce shaped beams are referred as shaped beam antennas. The popular beam shapes are as follows:
• Fanned Beams
• Sector Beams
• Cosecant Square Beams


Fanned beam

It is characterized by broadbeam in one of the principal planes. The fanned beam type is used by ship antennas. These are useful to compensate role and pitch of the ships.

Applications:
• Used for surface search in airborne radars
• Used for air search in groundborne radars

Sector beam

This beam type is usually flat over desired angular region of interest. The sector beam provides greater constant illumination of target object.

Applications:
• This beam type is used for surface search from ship and for air search from ground based radar systems.

consecant square beam

This beam type is precisely generated from phased array antennas with appropriate amplitude and phase requirements.

Applications:
• Used for ground mapping
• Used for airport surveillance

RADAR RELATED LINKS

RADAR tutorial   Doppler Radar   FMCW RADAR   RADAR BANDs   RADAR SCOPE   Weather Radar   Ground Penetrating Radar System   RADAR RANGE and RESOLUTION  

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