基于极化复用和频率复用的多通道聚焦超表面单元以及超表面透镜
By designing a multi-channel focusing metasurface unit with polarization multiplexing and frequency multiplexing, and utilizing a four-layer metal layer and a three-layer dielectric substrate structure, electromagnetic wave focusing with four channels on a single metasurface was achieved. This solves the problems of limited functionality and channel number of traditional metasurfaces, and improves electromagnetic wave control capability and focusing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING UNIV OF POSTS & TELECOMM
- Filing Date
- 2023-12-26
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional focusing metasurfaces have limited functionality, and the number of channels in dual-polarization focusing metasurfaces is difficult to expand. Furthermore, existing methods struggle to achieve multi-channel focusing effects.
A multi-channel focusing metasurface unit based on polarization multiplexing and frequency multiplexing is designed. Through a four-layer metal layer and a three-layer dielectric substrate structure, combined with the independent or simultaneous control of electric dipole metal sheets, the amplitude and phase of electromagnetic wave transmission with different polarization directions and frequencies can be independently controlled to form a four-channel focusing function.
It achieves greater focusing effect on a single metasurface, has polarization multiplexing and frequency multiplexing characteristics, and can independently control the transmission amplitude and phase response of electromagnetic waves at different frequencies and polarization directions. It expands the focusing channel of the metasurface, improves the electromagnetic wave control capability, and has a compact structure and low cost.
Smart Images
Figure CN117712681B_ABST