SPHERICAL LAMINATED LENS WITH LOOSE SUPERHIGH AND EXTREMELY-HIGH FREQUENCY MEDIUM Russian patent published in 1999 - IPC

FIELD: antenna engineering; miscellaneous radio systems ensuring wide- angle scanning of space with undistorted beam. SUBSTANCE: lens has core with predetermined values of dielectric constant and at least one layer of loose dielectric medium. Medium particles are spherical in shape and equal in diameter for every loose-fill layer; particle size is much greater than wavelength. In addition, medium is vibration- packed and held at gage pressure relative to next layer or to external medium. EFFECT: improved radio engineering characteristics and operating stability. 13 cl, 3 dwg