Results 181 to 190 of about 2,524 (232)

Metasurface-integrated Al₂O₃ ceramic dielectric resonator for enhanced gain and polarization performance in mm-wave MIMO systems. [PDF]

Sci Rep
Yadav SK, Dwivedi AK, Sigroha D, Tripathi S, Sharma A, Pandey S.   +5 more
europepmc   +1 more source

Breaking Through the Bottleneck of Wireless Physical-Layer Key Generation by Dynamic Agile Reconfigurable Intelligent Surface Antenna (DARISA). [PDF]

Entropy (Basel)
Ma Y, Wang HM.
europepmc   +1 more source

High isolation MIMO antenna based on metasurface for linear-circular polarization conversion and decoupling. [PDF]

Sci Rep
Wu T, Ma F, Wang L, Wen J.
europepmc   +1 more source

Microwave thermal supercharging therapy enables selective tumor ablation via low-power radio frequency-responsive nanotopographies. [PDF]

Bioact Mater
Guo W, Kim ES, Chen Z, Wang Q, Wu Q, Tan L, Ren X, Fu C, Fang L, Hang L, Meng X, Shin YK, Kim NY, Ma L, Jiang G.   +14 more
europepmc   +1 more source

High-gain and low-profile antenna using novel reflective surface for satellite applications. [PDF]

PLoS One
Nguyen LN.
europepmc   +1 more source

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Advanced Cloaking Metasurfaces for Wire Antennas

2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), 2021
We provide a review of our results on the design of mantle cloaking devices for antenna applications with an emphasis on our recent investigations in designing advanced cloaking metasurfaces. It is shown how such cloaking devices allow increasing the degrees of freedom in the design of conventional antennas with a significant enhancement of their ...
Vellucci S., Monti A., Barbuto M., Toscano A., Bilotti F.   +4 more
openaire   +2 more sources

Metallic Metasurface Antennas for Space

12th European Conference on Antennas and Propagation (EuCAP 2018), 2018
In metasurface (MTS) antennas, a surface-wave (SW) is gradually radiated by modulating an equivalent reactance tensor in the aperture plane. Such modulation results in the (-1) indexed Floquet mode entering the visible region, thus becoming a leaky-wave (LW) mode with curvilinear phase-contour.
Gonzalez-Ovejero, D., Morvan, Xavier, Chahat, N., Chattopadhyay, G., Sauleau, R., Ettorre, M.   +5 more
openaire   +2 more sources

Liquid Metasurface Antennas

2020 IEEE 17th International Conference on Smart Communities: Improving Quality of Life Using ICT, IoT and AI (HONET), 2020
This paper describes a novel design of a fully reconfigurable modulated metasurface (MTS) antenna. Current proposed MTS antennas offer limited radiation pattern reconfiguration, which is a crucial design tuning capability for antennas compatible with next-generation communication systems.
Kristina Moralic, Dylan Languasco, William Romeo, Mario Junior Mencagli   +3 more
openaire   +1 more source

Metasurface Antennas

2017
This chapter reports design and analysis methods for planar antennas based on modulated metasurfaces (MTSs). These antennas transform a surface wave (SW) into a leaky wave by means of the interaction with a MTS having a spatially modulated equivalent impedance.
Minatti, Gabriele, Faenzi, Marco, Mencagli, Mario, Caminita, Francesco, González Ovejero, David, Giovampaola, Cristian Della, BENINI, ALICE, Martini, Enrica, Sabbadini, Marco, Maci, Stefano   +9 more
openaire   +3 more sources

Efficiency of Metasurface Antennas

IEEE Transactions on Antennas and Propagation, 2017
Different types of efficiencies are introduced for metasurface (MTS) antennas based on single point-source excitation: 1) the feed efficiency $\varepsilon _{\mathrm{ feed}} $ is the power delivered by the feed to surface wave (SW) over the input power; 2) the tapering efficiency $\varepsilon _{\mathrm{ tap}} $ quantifies the deviation with ...
Minatti, Gabriele, Martini, Enrica, Maci, Stefano   +2 more
openaire   +3 more sources