Antenna Characteristics of a Hemispherical Luneburg Lens in the Scan Mode

The antenna characteristics of a hemispherical Luneburg lens with a flat screen on the lens side opposite to the position of the feed are studied. The hemispherical geometry of the lens allows the lens to be effectively used in the scan mode. In the scan mode of the antenna, it is possible to choose the shape and parameters of the radiation pattern depending on the position of the feed.