Dual layer planar Luneburg lens

S. E. Bankov

Kotel'nikov Institute ofRadio Engineering and Electronics of RAS

Received December 3, 2012

 

Abstract. Dual layer planar Luneburg lens is considered. The lens provides 360⁰ scanning  sector without effect of shading. One of the possible variant of the lens is analyzes in terms of coupled waves theory. Influence of phase errors caused by presence of two layers is analyzed. Dual layer Luneburg lens in the form of two parallel plate waveguides with  non – uniform dielectric filling and impedance films as screens is considered. Two dimensional metal strip arrays are used as impedance films. Parameters of the device are discussed.

Keywords: Luneburg lens, coupled waves theory, parallel plate waveguide, impedance film.