Manipulations of multi-frequency waves and signals via multi-partition asynchronous space-time-coding digital metasurface.

ABSTRACT: Manipulations of multiple carrier frequencies are especially important in a variety of fields like radar detection and wireless communications. In conventional radio-frequency architecture, the multi-frequency control is implemented by microwave circuits, which are hard to integrate with antenna apertures, thus bringing the problems of expensive system and high power consumption. Previous studies demonstrate the possibility to jointly control the multiple harmonics using space-time-coding digital metasurface, but suffer from the drawback of inherent harmonic entanglement. To overcome the difficulties, we propose a multi-partition asynchronous space-time-coding digital metasurface (ASTCM) to generate and manipulate multiple frequencies with more flexibility. We further establish an ASTCM-ba

SUBMITTER: Wang SR 

PROVIDER: S-EPMC10477258 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature