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Modified luneberg lens for defocused source

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1 Author(s)
Cheng, D. ; Syracuse University, Syracuse, NY, USA

A spherical Luneberg lens has the property of focusing the rays from a point source on the surface of the lens into a collimated beam on the diametrically opposite side of the lens. In microwave applications a point source on the surface of the lens is usually not obtained. Curves are given for the required index of refraction for a modified Luneberg lens which possesses the same collimating property for a point source located at a small distance outside of the lens.

Published in:

Antennas and Propagation, IRE Transactions on  (Volume:8 ,  Issue: 1 )