Results 31 to 40 of about 40,326 (144)

A tunable splitter upon a planar hyperbolic metamaterial [PDF]

Радиофизика и электроника, 2020
Subject and Purpose. The paper presents the development and testing of a microwave splitter based on a planar hyperbolic metamaterial with a structural defect.
M.А. Miliaiev, S.V. Nedukh, S.I. Tarapov   +2 more
doaj   +1 more source

Method for extracting the surface impedance of a generic reflective metasurface

Scientific Reports
We develop a method for the extraction of the surface impedance tensor of a generic reflective metasurface using an analytic relation between the tensorial surface impedance and the four polarisation-dependent reflection coefficients.
J. G. Smith, I. R. Hooper, N. Clow, A. P. Hibbins, S. A. R. Horsley   +4 more
doaj   +1 more source

Aperiodic-metamaterial-based absorber

APL Materials, 2017
The periodic-metamaterial-based perfect absorber has been studied broadly. Conversely, if the unit cell in the metamaterial-based absorber is arranged aperiodically (aperiodic-metamaterial-based absorber), how does it perform?
Quanlong Yang, Xieyu Chen, Yanfeng Li, Xueqian Zhang, Yuehong Xu, Zhen Tian, Chunmei Ouyang, Jianqiang Gu, Jiaguang Han, Weili Zhang   +9 more
doaj   +1 more source

Simultaneous anomalous reflection and polarization conversion from a tensorial impedance metasurface

npj Metamaterials
We demonstrate a method for designing metasurfaces that both anomalously reflect and polarization-convert upon reflection, using two examples that convert a transverse-magnetic-polarized plane wave into 1) a transverse-electric-polarized plane wave, and ...
Jonathon George Smith, Ian Richard Hooper, Nathan Clow, Alastair Paul Hibbins, Simon Arthur Robin Horsley   +4 more
doaj   +1 more source

SAR Reduction Using Integration of PIFA and AMC Structure for Pentaband Mobile Terminals

International Journal of Antennas and Propagation, 2017
In this paper, a capacitive grating artificial magnetic conductor (AMC) is presented to reduce the specific absorption rate (SAR) in pentaband mobile terminals. The AMC structure is implemented using a dielectric film with the printed arrays of the metal
Jae-Gon Lee, Jeong-Hae Lee
doaj   +1 more source

Nanomechanical metamaterial light modulators

, 2014
Reconfigurable photonic metamaterials provide a flexible platform for thermo-optical, electro-optical, magneto-optical and all-optical modulation of metamaterial properties.
Ou, J-Y., Valente, J., Plum, E., Cencillo Abad, P.M., Zheludev, N.I.   +4 more
core   +1 more source

Tunable Electromagnetically Induced Transparent Window of Terahertz Metamaterials and Its Sensing Performance

Applied Sciences, 2022
The electromagnetically induced transparency effect of terahertz metamaterials exhibits excellent modulation and sensing properties, and it is critical to investigate the modulation effect of the transparent window by optimizing structural parameters. In
Zhenlin Wu, Peiyao An, Menghan Ding, Yanan Qi, Lin Zhang, Shaoshuai Han, Di Lian, Changming Chen, Xin Yang   +8 more
doaj   +1 more source

Discrete Euler–Bernoulli beam lattices with beyond nearest connections

New Journal of Physics
The propagation of elastic waves on discrete periodic Euler–Bernoulli mass-beam lattices is characterised by the competition between coupled translational and rotational degrees-of-freedom at the mass-beam junctions.
R G Edge, E Paul, K H Madine, D J Colquitt, T A Starkey, G J Chaplain   +5 more
doaj   +1 more source

Non-Markovian exceptional points by interpolating quantum channels

npj Quantum Information
Exceptional points (EPs) occur in non-Hermitian systems where eigenvalues and eigenvectors coalesce. In open quantum systems, EPs are typically studied via non-Hermitian effective Hamiltonians or Liouvillians, but these omit the full generality of ...
Wai Chun Wong, Bei Zeng, Jensen Li
doaj   +1 more source

Symmetric surface waves along a metamaterial dielectric waveguide and a perfectly conducting cylinder covered by a metamaterial layer

Advanced Electromagnetics, 2018
Existence of symmetric complex waves in a metamaterial dielectric rod and a perfectly conducting cylinder of circular cross section covered by a concentric layer of metamaterial, a metamaterial Goubau line, is proved.
Y. Shestopalov, E. Kuzmina
doaj   +1 more source