Results 11 to 20 of about 9,021 (267)
Two-Dimensional Beam Steering Based on Compact Programmable Coding Metasurface
Applied Sciences, 2022 A programmable coding metasurface provides unprecedented flexibility to manipulate electromagnetic waves dynamically. By controlling the peculiarity of subwavelength artificial atoms, devices with metasurfaces perform various functionalities.
Fei Yang +6 more
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Millimeter-wave achromatic half-wave plate [PDF]
Applied Optics, 2005 In print - Applied Optics, 14 pages, 7 ...
Hanany, S. +5 more
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A compact high‐sensitivity tangential E‐probe with resonator and coupled balun
Electronics Letters, 2022 A compact high‐sensitivity probe for sensing up tangential E‐field is proposed and measured in this paper. The probe consists of an electric dipole with patches used to induce the tangential E‐field, a resonator made up of open circuit stubs (capacitor ...
Shang Zhang +4 more
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IEEE Access, 2020 A novel dual-band patch antenna operating at 28/38 GHz is proposed for multiple-input multiple-output (MIMO) communication systems in this paper. The antenna utilizes substrate integrated waveguide (SIW) transmission line as the feed by means of a ...
Pengfei Liu +5 more
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Nature Communications, 2023 Metasurfaces have promising potential to revolutionize a variety of photonic and electronic device technologies. However, metasurfaces that can simultaneously and independently control all electromagnetics (EM) waves’ properties, including amplitude ...
Geng-Bo Wu +6 more
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Space-time-coding digital metasurfaces
Nature Communications, 2018 Current digital coding metasurfaces are only space-encoded. Here, the authors propose space-time modulated digital coding metasurfaces to obtain simultaneous manipulations of electromagnetic waves and present harmonic beam steering, beam shaping, and ...
Lei Zhang +11 more
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Shaping electromagnetic waves using software-automatically-designed metasurfaces
Scientific Reports, 2017 We present a fully digital procedure of designing reflective coding metasurfaces to shape reflected electromagnetic waves. The design procedure is completely automatic, controlled by a personal computer.
Qian Zhang +5 more
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Convolution operations on time-domain digital coding metasurface for beam manipulations of harmonics
Nanophotonics, 2020 Time-domain digital coding metasurfaces have been proposed recently to achieve efficient frequency conversion and harmonic control simultaneously; they show considerable potential for a broad range of electromagnetic applications such as wireless ...
Zhang Cheng +10 more
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High‐Precision Direction‐of‐Arrival Estimations Using Digital Programmable Metasurface
Advanced Intelligent Systems, 2022 Commonly, phased array antennas are used to provide spatial resolution for direction of arrival (DOA) estimations. However, the phase‐array‐based DOA estimations usually require complicated system architecture and signal processing.
Jia Wei Wang +6 more
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Millimeter-wave detection of landmines
SPIE Proceedings, 2013 Millimeter wave absorption relative to background soil can be used for detection landmines with little or no metal content. At these frequencies, soil and landmine absorb electromagnetic energy differently. Stepped frequency measurements from 20 GHz to 60 GHz were used to detect buried surrogate landmines in the soil.
Ozturk, Hilmi +6 more
openaire +3 more sources