Results 21 to 30 of about 576 (169)
Light‐Controllable Digital Coding Metasurfaces [PDF]
Advanced Science, 2018 AbstractSince the advent of digital coding metamaterials, a new paradigm is unfolded to sample, compute and program electromagnetic waves in real time with one physical configuration. However, one inconvenient truth is that actively tunable building blocks such as diodes, varactors, and biased lines must be individually controlled by a computer ...
Xin Ge Zhang +7 more
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Dynamic RCS Reduction Performances of Antenna Array with Coding Metasurface
International Journal of Antennas and Propagation, 2022 On the basis of combining the two concepts of digital coding metasurface and metasurface antenna, low radar cross-section (RCS) coding metasurface antenna array with dynamic scattering performances is presented in this paper.
Yan Chen +5 more
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A Smart Metasurface for Electromagnetic Manipulation Based on Speech Recognition
Engineering, 2023 In this work, we propose and realize a smart metasurface for programming electromagnetic (EM) manipulations based on human speech recognition. The smart metasurface platform is composed of a digital coding metasurface, a speech-recognition module, a ...
Lin Bai +7 more
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Digital Metasurfaces: Light‐Controllable Digital Coding Metasurfaces (Adv. Sci. 11/2018) [PDF]
Advanced Science, 2018 A remote‐mode metasurface addressed and tuned by illuminating light is proposed and realized by Wei Xiang Jiang, Cheng‐Wei Qiu, Tie Jun Cui, and co‐workers in article number https://doi.org/10.1002/advs.201801028. By tuning the intensity of the illuminating light, a digital coding metasurface enables dynamically reconfigurable radiation beams in a ...
Zhang, Xin Ge +7 more
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Frontiers in Materials, 2022 Polarization angle manipulation has been a vital technic in radar applications. This paper proposes and demonstrates a digital polarization programmable metasurface for continuous polarization angle rotation and radar applications.
Yidan Wang +7 more
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Leida xuebao, 2022 Digital coding metasurfaces are an important research branch of metamaterials and metasurfaces. The digital coding method replaces the equivalent medium theory to characterize metasurfaces, which not only simplifies the design process of metasurfaces but
Weixiang JIANG +3 more
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Frontiers in Materials, 2022 Terahertz metasurface with digital, programmable control recently gained considerable attention for its potential applications in high-speed imaging, nondestructive sensing, and wireless communication.
Chenxi Liu +4 more
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Experimental demonstration of a time-domain digital-coding metasurface for a Doppler cloak
Optics Express, 2021 By generating an artificial Doppler shift, a Doppler cloak can compensate for the Doppler shift from a moving object. An object covered by a Doppler cloak will be detected as a static object, even if it is actually moving. Herein, we experimentally demonstrate the Doppler cloak in a radar system using a time-domain digital-coding metasurface.
Baiyang Liu +3 more
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Wide Band Beam Steering Digital Metasurface Reflectarray Antenna for Millimeter Wave Applications
IEEE Access, 2023 A compact wideband digital metasurface reflectarray antenna for millimeter-wave application is presented in this article. The metasurface reflectarray is composed of periodic arrangements of metabit unit cell elements.
Gazali Bashir +2 more
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Nature Communications, 2023 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,
Si Ran Wang +5 more
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