Results 11 to 20 of about 2,524 (232)
Electronically steered metasurface antenna [PDF]
Scientific Reports, 2021 Mobile devices, climate science, and autonomous vehicles all require advanced microwave antennas for imaging, radar, and wireless communications. We propose a waveguide-fed metasurface antenna architecture that enables electronic beamsteering from a ...
Michael Boyarsky +4 more
doaj +5 more sources
A True Metasurface Antenna. [PDF]
Sci Rep, 2016 AbstractWe present a true metasurface antenna based on electrically-small resonators. The resonators are placed on a flat surface and connected to one feed point using corporate feed. Unlike conventional array antennas where the distance between adjacent antennas is half wavelength to reduce mutual coupling between adjacent antennas, here the distance ...
El Badawe M, Almoneef TS, Ramahi OM.
europepmc +4 more sources
Frontiers in Physics, 2020 A broadband high gain polarization reconfigurable antenna based on metasurface has been presented. The antenna is composed of a planar metasurface, a slot antenna and an air cavity.
Chun Ni +5 more
doaj +3 more sources
A space-time holographic metasurface antenna. [PDF]
Sci AdvHolography is a revolutionary imaging technology capable of storing and recovering full-wave information of the light fields scattered by objects. However, current hologram configurations are based on space-only modulation and can merely record the amplitude and phase information of object lights.
Wu GB +7 more
europepmc +3 more sources
A Metasurface Superstrate for Mutual Coupling Reduction of Large Antenna Arrays
IEEE Access, 2020 In this paper, a ε-negative metasurface superstrate is proposed for mutual coupling reduction of large antenna arrays. Unlike the previous decoupling metasurface works that are mostly confined to two-ports antennas, the proposed decoupling ...
Jiazhi Tang +6 more
doaj +3 more sources
A near zero refractive indexed non-uniform metasurface for broadband RCS reduction of an antipodal Vivaldi antenna [PDF]
Scientific ReportsThis research reports the design of a polarization converter based non-uniform metasurface in which the unit cells have been arranged in such a manner that both co and cross polarized reflections are minimized which results in mitigation of radar cross ...
Priyanka Das +2 more
doaj +2 more sources
High-Gain Wideband Metasurface Antenna With Low Profile
IEEE Access, 2019 In this paper, a novel compact wideband and high-gain antenna based on metasurface is proposed. The antenna is an octagon with a side length of 32.3 mm and a height of 5.6 mm.
Hao Bai, Guang-Ming Wang, Ting Wu
doaj +3 more sources
PD Koch Complementary Fractal UHF Antenna Based on AMC Metasurface [PDF]
SensorsTo meet the high-sensitivity requirement of ultra-high-frequency (UHF) sensors for electromagnetic waves radiated by partial discharge (PD) in power equipment of substations, this paper proposes a Koch complementary fractal UHF antenna based on the ...
Haonan Zhang +5 more
doaj +2 more sources
Low‐profile circularly polarized metasurface antenna with tailored reflection phase
Electronics Letters, 2021 A low‐profile metasurface antenna with circularly polarized radiation and tailored anisotropic reflection is proposed in this letter. The metasurface antenna composed of excitation structure (microstrip line with coupling slot) and a metasurface layer ...
Yi Zhao, Xu Yao, Chun‐yu Wang
doaj +1 more source
Engineered Substrates for Metasurface Antennas
Additive Manufacturing Letters, 2023 This letter explores the advantages of additively manufactured substrates with spatially varying electromagnetic properties. These engineered substrates will be constructed using space filling curves (SFC) of various orders. New advanced manufacturing systems such as the nScrypt 3Dn-300, have enabled the rapid fabrication of these SFC substrates.
Kelvin J. Nicholson +4 more
openaire +2 more sources