Preparation method of cylindrical electromagnetic wave lens

• Main Authors: LU YONGCHAO, DOU YINGQIAN, ZHENG HONGZHEN
• Format: Patent
• Language: Chinese; English
• Published: 05.06.2020
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

The invention provides a preparation method of a cylindrical electromagnetic wave lens, which is used for preparing an electromagnetic wave lens containing a cylindrical inner core body and a plurality of dielectric layers wrapping the outer side of the inner core body, and the dielectric constants of all the layers are decreased progressively from the inner core body to the dielectric layer on the outermost layer. According to the method, at least one hollow cylindrical outer mold on one side and a plurality of filling materials with different dielectric constants are adopted; during preparation, according to the dielectric constant of the filling material from low to high, the filling medium with the lowest dielectric constant is firstly laid along each inner wall of the outer mold to form the bottom surface and the side surface of the outermost dielectric layer; then the filling medium with the second low dielectric constant is laid along the inner side wall of the upper layer of filling medium and so on u