Vortex electromagnetic wave antenna based on holographic impedance modulation surface

• Main Authors: LI JIALIN, ZHU ZHELIN
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2024
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

The invention discloses a vortex electromagnetic wave antenna based on a holographic impedance modulation surface, and belongs to the technical field of antennas. The antenna is formed by fusion according to an amplitude envelope modulation method and a holographic impedance modulation surface design mechanism, high gain and high mode purity of vortex beams are achieved, the OAM mode multiplexing rate is increased, and the communication capacity of a system is improved; a complex feed network is not needed, and a monopole is adopted as a feed source, so that conformal and system integration is facilitated; the implementation scheme is visual and easy to implement, the algorithm is not needed for design, the research and development complexity is greatly reduced, the research and development period is shortened, and rapid and large-scale design and production are facilitated; the metasurface adopts a mature PCB processing technology, and has the advantages of low cost, low profile height, light weight and the