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Horn Antennas

A horn antenna is used for collimating the beam of the radar frontend. The antenna gain, the half-power beamwidth (HPBW) and thus the beam spot is mainly dependent on the aperture size of the horn.

The antenna characteristic is affected by the aperture size which can be seen in the above three images.

ParameterValue
Frequency range> 50 GHz
Antenna gain32 dBi @ 122 GHz
Dimensions35 x 35 mm²
3dB beamwidth5 ° @ 122 GHz

 

Horn Antenna Gain

Horn Antenna HPBW

Horn Antenna Spotsize