Research Progress in Multi-Mode Integration and Dynamic Regulation of Microwave Band Vortex Beams
The recent researches on vortex beam multimode integration and dynamic regulation are summarized in this article.Starting from the passive metasurface lens,utilizing the comprehensive control effect of propagation phase and geometric phase,fractional modes of vortex beam with high-purity is realized on a single metasurface platform.Furthermore,based on the theory and method about multimode vortex beam integration by using passive metasurfaces,active tunable electromagnetic devices such as varactors are loaded into the metasurface unit cell to adopt dynamic switching and manual regulation of vortex beams.On this basis,a theoretical analysis and evaluation of the performance of vortex communication systems based on metasurface is conducted through channel modeling,laying a theoretical foundation for improving the channel capacity and information transmission rate of modern communication systems.
Microwave metasurfaceVortex beamMulti-mode OAM integrationReconfigurable regulationOAM wireless communication
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维普
