What is Flat Lens Antenna?

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Said Choukri

Hi,

You can See Rotman Lens Antenna, it's the same exemple,

Malcolm White

Said Choukri is correct. See also Conference Paper Design of a Dielectric Flat Lens Antenna for 60 GHz WPAN Applications

Musa Hussain

A flat lens antenna is a low profile, light weight and cost effective solution to conventional and curved dielectric lenses. ... A feed antenna usually horn or patch is used to illuminate one side of the array, and for passive flat lenses, either side of the array can be a transmitter or a receiver (or vise versa)

Have a look to this article...

Thanks!

https://www.researchgate.net/publication/265382152_Design_of_a_Dielectric_Flat_Lens_Antenna_for_60_GHz_WPAN_Applications