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Joint Modulations of Electromagnetic Waves and Digital Signals on A Single Metasurface Platform to Reach Programmable Wireless Communications
Xiang Wan, Chaokun Xiao, He Huang, Qiang Xiao, Wei Xu, Yueheng Li, Joerg Eisenbeis, Jiawei Wang, Ziai Huang, Qiang Cheng, Shi Jin, Thomas Zwick, Tiejun Cui
Engineering ›› 2022, Vol. 8 ›› Issue (1) : 86-95.
PDF(4469 KB)
PDF(4469 KB)
Joint Modulations of Electromagnetic Waves and Digital Signals on A Single Metasurface Platform to Reach Programmable Wireless Communications
In current wireless communication and electronic systems, digital signals and electromagnetic (EM) radiation are processed by different modules. Here, we propose a mechanism to fuse the modulation of digital signals and the manipulation of EM radiation on a single programmable metasurface. The programmable metasurface consists of massive subwavelength-scale digital coding elements. A set of digital states of all elements forms simultaneous digital information roles for modulation and the wave-control sequence code of the programmable metasurface. By designing digital coding sequences in the spatial and temporal domains, the digital information and far-field patterns of the programmable metasurface can be programmed simultaneously and instantly in desired ways. For the experimental demonstration of the mechanism, we present a programmable wireless communication system. The same system can realize transmissions of digital information in single-channel modes with beam-steerable capability and multichannel modes with multiple independent information. The measured results show the excellent performance of the programmable system. This work provides excellent prospects for applications in fifth- or sixth-generation wireless communications and modern intelligent platforms for unmanned aircrafts and vehicles.
joint radar and communication / programmable metasurface / massive multiple-in and multiple-out
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