Results 11 to 20 of about 284,309 (382)

Determination of Effective Permittivity and Permeability of Metamaterials from Reflection and Transmission Coefficients [PDF]

, 2002
We analyze the reflection and transmission coefficients calculated from transfer matrix simulations on finite lenghts of electromagnetic metamaterials, to determine the effective permittivity and permeability.
A. M. Nicholson, B. Gralak, C. M. Soukoulis, D. R. Smith, D. R. Smith, D. R. Smith, F. Mariotte, H. Kosaka, J. B. Pendry, J. B. Pendry, J. B. Pendry, M. Notomi, P. Markoš, P. Markoš, P. Markoš, R. A. Shelby, S. Schultz, V. G. Veselago, W. B. Weir   +18 more
core   +4 more sources

On the permittivity of titanium dioxide [PDF]

Scientific Reports, 2021
AbstractConductive rutile TiO2 has received considerable attention recently due to multiple applications. However, the permittivity in conductive, reduced or doped TiO2 appears to cause controversy with reported values in the range 100–10,000. In this work, we propose a method for measurements of the permittivity in conductive, n-type TiO2 that ...
Bonkerud, Julie, Zimmermann, Christian, Weiser, Philip Michael, Vines, Lasse, Monakhov, Eduard   +4 more
openaire   +6 more sources

Measurement of the permittivity of ice [PDF]

Journal of Glaciology, 1967
Bernhard Philberth
openalex   +3 more sources

A Concise and Time-efficient Method for Characterizing the Permittivity of Unknown Materials [PDF]

Journal of Electromagnetic Engineering and Science, 2023
We propose a simplified and time-efficient methodology to characterize the permittivity of unknown materials. Based on the transmission line method, this method enables permittivity extraction using a small number of dielectric materials under test (MUT).
Junhyuk Ahn, Youngno Youn, Wonbin Hong
doaj   +1 more source

Permittivity-Asymmetric Quasi-Bound States in the Continuum. [PDF]

Nano letters (Print), 2022
Breaking the in-plane geometric symmetry of dielectric metasurfaces allows us to access a set of electromagnetic states termed symmetry-protected quasi-bound states in the continuum (qBICs).
Rodrigo Berté, Thomas Weber, Leonardo de Souza Menezes, Lucca Kühner, Andreas Aigner, Martin Barkey, F. Wendisch, Y. Kivshar, Andreas Tittl, S. A. Maier   +9 more
semanticscholar   +1 more source

Pattern Similarity and Gain Enhancement of Dual-Band Antenna Using an ENZ Metamaterial [PDF]

Journal of Electromagnetic Engineering and Science, 2023
A dual-band antenna with pattern similarity using the energy-squeezing mechanism of an epsilon-near-zero (ENZ) metamaterial is designed, and experimental results are presented with simulated data.
Srujana Vahini Nandigama, Bharath Kunooru, Dasari Ramakrishna, Vijay M. Pandharipande   +3 more
doaj   +1 more source

Polyvinyl chloride-based dielectric elastomer with high permittivity and low viscoelasticity for actuation and sensing

Nature Communications, 2023
Dielectric elastomers (DEs) are widely used in soft actuators but existing DE actuators often require high driving electrical fields. Here the authors demonstrate that introducing cyanoethyl cellulose into plasticized PVC gel confers high dielectric ...
Jianjian Huang, Xiaodie Zhang, Ruixue Liu, Yong-xia Ding, Dongjie Guo   +4 more
semanticscholar   +1 more source

High-Resolution Detection of Rock-Forming Minerals by Permittivity Measurements with a Near-Field Scanning Microwave Microscope

Sensors, 2022
The identification of the minerals composing rocks and their dielectric characterization is essential for the utilization of microwave energy in the rock industry.
José D. Gutiérrez-Cano, José M. Catalá-Civera, Angel M. López-Buendía, Pedro J. Plaza-González, Felipe L. Penaranda-Foix   +4 more
doaj   +1 more source

Dynamic variation of the dielectric permittivity of elastomers with mechanical constraints

AIP Advances, 2023
Elastomers are commonly used as insulators or actuators in important fields such as robotics and electronics. The performance of elastomers is strongly influenced by their dielectric permittivity while determining the dielectric permittivity of ...
Pan Jia, Xianghe Zheng, Jianyou Zhou
doaj   +1 more source

Synthesis, Characterization, and Electromagnetic Wave Absorbing Properties of M₁²⁺–M₂⁴⁺ Substituted M-Type Sr-Hexaferrites

Applied Sciences, 2021
Mn–Ti, Zn–Ti, Zn–Zr substituted M-type Sr-hexaferrites (SrM), SrFe12−2xM1xM2xO19 (0 ≤ x ≤ 2.0, M1 = Mn or Zn; M2 = Ti or Zr) were synthesized, and their solubility, crystalline structure, and high-frequency properties were studied.
Jae-Uk Kim, Young-Min Kang
doaj   +1 more source