一种双极化独立操控毫米波可编程超表面
By designing a millimeter-wave programmable metasurface with independent dual-polarization control, and utilizing PIN diodes and metal structures to regulate electromagnetic wave reflection characteristics under different polarizations, the polarization coupling problem in existing technologies is solved. This enables independent control and frequency expansion of electromagnetic waves with different polarizations, resulting in fast response and diverse functionalities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTHEAST UNIV
- Filing Date
- 2024-06-07
- Publication Date
- 2026-07-17
AI Technical Summary
In existing programmable metasurface designs, the phase distributions of orthogonally polarized electromagnetic waves are coupled to each other, or programmability can only be achieved under specific polarizations. As a result, a single-polarization programmable metasurface can only provide one effective information transmission channel and cannot meet the needs of multi-task processing.
Design a dual-polarization independently controllable millimeter-wave programmable metasurface, employing PIN diodes, a metal structure, a dielectric substrate, and a metal backplane. By adjusting the on/off state of the PIN diodes under different polarizations, the reflected amplitudes of x- and y-polarized incident electromagnetic waves are made similar, while their phases differ by 180°. An independent control channel is provided through an FPGA to achieve independent control of electromagnetic waves with different polarizations.
It enables independent control of electromagnetic waves with different polarizations, extends the operating frequency of programmable metasurfaces to the millimeter-wave band, improves response speed and stability, has anisotropic and electrically reconfigurable characteristics, and can realize functions such as beam anomalous deflection and scanning.
Smart Images
Figure CN118589206B_ABST