Results 61 to 70 of about 570,053 (282)

A novel 24 GHz circularly polarised metasurface rectenna

IET Microwaves, Antennas & Propagation, 2023
A novel 24 GHz circularly polarised metasurface rectenna for wireless power transmission is designed in this study. Based on experimental measurements and retro‐simulation, an effective approach is proposed to extract the parasitic parameters of a ...
Wei Huang, Jinxin Du, Xue‐Xia Yang, Wenquan Che, Steven Gao   +4 more
doaj   +1 more source

Design Procedure of a Frequency Reconfigurable Metasurface Antenna at mmWave Band

Telecom, 2022
The use of the millimeter wave (mmWave) spectrum and further exploration of sub-mmWave has led to a new era in wireless communication, as the need for higher data rates grows.
Bokamoso Kebatho Ledimo, Pako Moaro, Reuben Ramogomana, Modisa Mosalaosi, Bokamoso Basutli   +4 more
doaj   +1 more source

Electromechanically Tunable Metasurface Transmission Waveplate at Terahertz Frequencies

, 2017
Dynamic polarization control of light is essential for numerous applications ranging from enhanced imaging to materials characterization and identification.
Averitt, Richard D., Duan, Guangwu, Schalch, Jacob, Seren, Huseyin R., Zhang, Jingdi, Zhang, Xin, Zhao, Xiaoguang   +6 more
core   +1 more source

Frequency-Diverse Reflection Metasurface Antenna Design for Computational Microwave Imaging

IEEE Open Journal of Antennas and Propagation
In this paper, the design of a computational microwave imaging (CMI) oriented frequency-diverse reflection metasurface antenna (FDRMA) is presented.
Aobo Li, Mengran Zhao, D. P. Lynch, Shitao Zhu, M. A. B. Abbasi, O. Yurduseven   +5 more
semanticscholar   +1 more source

Large‐Area 2D Metasurface‐Based Triboelectric E‐Skin Arrays: Contact & Proximity Tactile Mapping with Broadband Acoustic Readouts

Advanced Materials, EarlyView.
Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief, Swagato Sarkar, Anik Kumar Ghosh, Osvalds Verners, Kamal Kumar Meena, Su‐Hyeong Lee, Soosang Chae, Tobias A. F. König, Beate Krause, Andreas Fery, Mehmet Sait Özer, Anindya Nag, Amit Das   +12 more
wiley   +1 more source

Wideband and high‐gain circularly polarised microstrip antenna design using sandwiched metasurfaces and partially reflecting surface

IET Microwaves, Antennas & Propagation, 2019
In this study, the authors propose a new type of metasurface, namely a sandwiched anisotropic metasurface, for converting a linearly polarised elliptical patch antenna into a wideband circularly polarised antenna.
Kunal Srivastava, Ashwani Kumar, Prashant Chaudhary, Binod K. Kanaujia, Santanu Dwari, Anand K. Verma, Karu P. Esselle, Raj Mittra   +7 more
doaj   +1 more source

Shape Memory Alloy-Based Fluidically Reconfigurable Metasurfaced Beam Steering Antenna

IEEE Access, 2023
A low-cost actuator-based fluidically programmable metasurface (FPMS) antenna is proposed to solve the slow tuning speed problem of the manually fluidic based reconfigurable antennas.
Syed Imran Hussain Shah, Sayed Sabir Shah, Eirikur Bernhardsson, Slawomir Koziel   +3 more
doaj   +1 more source

Arbitrary beam control using passive lossless metasurfaces enabled by orthogonally-polarized custom surface waves

, 2018
For passive, lossless impenetrable metasurfaces, a design technique for arbitrary beam control of receiving, guiding, and launching is presented. Arbitrary control is enabled by a custom surface wave in an orthogonal polarization such that its addition ...
Kwon, Do-Hoon, Tretyakov, Sergei A.
core   +1 more source

Chiral Metal Halide Perovskites for Spin‐Polarized Light‐Emitting Diodes

Advanced Materials, EarlyView.
Chiral metal–halide perovskites offer a route to circularly polarized light without external polarizers. This Perspective compares two spin‐light emitting diode concepts: intrinsically chiral emissive layers and chiral spin‐filter interlayers that inject spin‐polarized carriers into efficient achiral emitters.
Ashish Gaurav, Jihyun Kim, Nadesh Fiuza‐Maneiro, Hongki Kim, Hae‐Jun Seok, Sergio Gómez Grana, Robert L. Z. Hoye, Lakshminarayana Polavarapu, Matthew J. Fuchter   +8 more
wiley   +1 more source

Tomorrow's Metamaterials: Manipulation of Electromagnetic Waves in Space, Time and Spacetime

, 2016
Metamaterials represent one of the most vibrant fields of modern science and technology. They are generally dispersive structures in the direct and reciprocal space and time domains.
Caloz, Christophe
core   +1 more source