Smart radio environments empowered by reconfigurable AI meta-surfaces: an idea whose time has come
EURASIP Journal on Wireless Communications and Networking, 2019 Future wireless networks are expected to constitute a distributed intelligent wireless communications, sensing, and computing platform, which will have the challenging requirement of interconnecting the physical and digital worlds in a seamless and ...
Marco Di Renzo +13 more
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Nanotechnology Reviews, 2015 In this review, we present a brief introduction on the spoof surface plasmons supported on corrugated metallic plates with nearly zero thickness. We mainly focus on the propagation characteristics of spoof surface plasmon polaritons (SPPs), excitation of
Gao Xi, Cui Tie Jun
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ENHANCEMENT OF BANDWIDTH AND BEAM FORMING ANTENNA ARRAYS IN 5G CELLULAR COMMUNICATION NETWORKS
ICTACT Journal on Communication Technology, 2022 In general, an antenna is an interface that transmits signal data and receives incoming signal data. The radio waves received through this interface help to do the necessary things for the transmitter and receiver circuit systems used there. Also a radio
Mohammad Shahnawaz Shaikh +3 more
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An Automation System for Controlling Streetlights and Monitoring Objects Using Arduino
Sensors, 2018 We present an Arduino-based automation system to control the streetlights based on solar rays and object’s detection. We aim to design various systems to achieve the desired operations, which no longer require time-consuming manual switching of the
Zain Mumtaz +7 more
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Numerical studies of the parameters of the perturbed region formed in the lower ionosphere under the action of a directed radio waves flux from a terrestrial source [PDF]
Компьютерные исследования и моделирование, 2018 The paper presents a physico-mathematical model of the perturbed region formed in the lower D-layer of the ionosphere under the action of directed radio emission flux from a terrestrial stand of the megahertz frequency range, obtained as a result of ...
Daria Sergeevna Moiseeva +2 more
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Boundary Determination of Concealed Structure Region Based on Electromagnetic Tomography
Meikuang Anquan, 2020 To further explore the root cause of the high roof collapse phenomenon of the 1303 working face, the high-precision tunnel detection of the 1303 working face was carried out by electromagnetic wave fixed point method, and three sets of structural ...
QU Xiaobing, BAO Junrui
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Tracking and analysis of solar radio waves using a low-cost Radio Telescope in urban areas [PDF]
EPJ Web of ConferencesRadio telescopes are specialized instruments to detect radio-waves between 30MHz-300GHz from different astronomical sources. It has ability to capture radio signals from satellites effectively during high light pollution and cloudy weather.
Chandra Isita +3 more
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Interaction of suprathermal solar wind electron fluxes with sheared whistler waves: fan instability [PDF]
Annales Geophysicae, 2003 Several in situ measurements performed in the solar wind evidenced that solar type III radio bursts were some-times associated with locally excited Langmuir waves, high-energy electron fluxes and low-frequency electrostatic and electromagnetic ...
C. Krafft, A. Volokitin
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Radio-Wave Propagation and Electromagnetic Surface Waves [PDF]
Proceedings of the National Academy of Sciences, 1947 A Discrepancy and Its Resolution. - The problem of the propagation of radio-waves along the surface of the (plane) earth was first treated in a celebrated paper by A. Sommerfeld (1909).(1) Let the (r, φ)-plane of a cylindric system of coordinates coincide with the plane of the earth surface and let the z-axis point vertically upward.
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The Effect of the Parametric Decay Instability on the Morphology of Coronal Type III Radio Bursts
The Astrophysical Journal Letters, 2023 The nonlinear evolution of Alfvén waves in the solar corona leads to the generation of Alfvénic turbulence. This description of the Alfvén waves involves parametric instabilities where the parent wave decays into slow mode waves giving rise to density ...
Chaitanya Prasad Sishtla +6 more
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