Results 21 to 30 of about 98,816 (301)
Frontiers in Materials, 2022 Reconfigurable intelligent surfaces (RISs) have attracted extensive attention in recent years due to their strong ability to improve and customize electromagnetic wave propagation channels in wireless communications.
Jing Cheng Liang +4 more
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Cylindrical Three-Dimensional Millimeter-Wave Imaging via Compressive Sensing
International Journal of Antennas and Propagation, 2015 Millimeter-wave (MMW) imaging techniques have been used for the detection of concealed weapons and contraband carried by personnel. However, the future application of the new technology may be limited by its large number of antennas.
Guoqiang Zhao +4 more
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Minimal Rational Interpolation and its Application in Fast Broadband Simulation
IEEE Access, 2019 Broad bandwidth simulation in frequency domain benefits from fast frequency sweep, and frequency-domain electromagnetic solvers are usually combined with asymptotic wave evaluation or interpolation techniques.
Jun Wei Wu, Tie Jun Cui
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Maximum Throughput Scheduling for Multi-connectivity in Millimeter-Wave Networks
, 2018 Multi-connectivity is emerging as promising solution to provide reliable communications and seamless connectivity at the millimeter-wave frequency range. Due to the obstacles that cause frequent interruptions at such high frequency range, connectivity to
Malanchini, Ilaria +3 more
core +1 more source
Representing Quantum Information with Digital Coding Metasurfaces
Advanced Science, 2020 With the development of science and technology, the way to represent information becomes more powerful and diversified. Recent research on digital coding metasurfaces has built an alternative bridge between wave‐behaviors and information science ...
Guo Dong Bai, Tie Jun Cui
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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
Stochastic Geometry Modeling and Performance Evaluation of mmWave Cellular Communications
, 2015 In this paper, a new mathematical framework to the analysis of millimeter wave cellular networks is introduced. Its peculiarity lies in considering realistic path-loss and blockage models, which are derived from experimental data recently reported in the
Di Renzo, Marco
core +2 more sources
IEEE Open Journal of Antennas and PropagationA new taper-shaped linearly polarized (LP) magneto-electric (ME) dipole, excited by the U-shaped microstrip line through a coupling slot, is proposed in this paper. An ultra-wide simulated impedance bandwidth of 85% (20.5-50.6 GHz) and 1.5-dB gain
Lei Xiang +9 more
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A Fully Polarized Antenna Covering the Hemispherical Airspace
IEEE Access, 2021 A fully polarized antenna has been proposed in this paper. The antenna is composed of four independent antennas, named X, Y, H, V. The simulation and measurement results verify the independent antenna radiation performance and the function of the fully ...
Jiashan Liu +5 more
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A Circularly-Polarized-Reconfigurable Patch Antenna With Liquid Dielectric
IEEE Open Journal of Antennas and Propagation, 2021 A circularly-polarized-reconfigurable patch antenna based on fluidic control method is proposed in this paper. A liquid dielectric, ethyl acetate, is introduced to change the substrate of a patch antenna from homogeneous to inhomogeneous.
Zhe Chen +4 more
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