Results 71 to 80 of about 2,697,867 (333)
The transition between radiative and reactive region for leaky waves in planar waveguiding structures [PDF]
, 2020 The gradual transition from a radiative to a reactive regime is studied for leaky modes supported by planar waveguiding structures such as those used in Fabry-Perot cavity leaky-wave antennas (FPC-LWAs).
Galli A., Fuscaldo W., Burghignoli P.
core +1 more source
Metamaterial grounded planar bilayers supporting leaky waves: principles and applications [PDF]
, 2006 In this contribution, we review the analysis of metamaterial grounded planar bilayers supporting leaky-waves, which we have recently proposed elsewhere as compact sub-wavelength leaky-wave radiators, and for enhancing the wave transmission through ...
BILOTTI, FILIBERTO +3 more
core +3 more sources
IEEE Access, 2019 A technique to derive the propagation characteristics and field distributions of waves guided by a scalar and tensorial reactance surfaces modulated by periodic or discrete Fourier spectrum functions in the propagation direction is presented.
M. Casaletti
doaj +1 more source
Advanced Functional Materials, EarlyView.Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg +6 more
wiley +1 more source
The solution of lee wave problems by the Complex Coordinate Method
Meteorologische Zeitschrift, 1995 The Helmholtz equation appears routinely in lee wave problems. The principle of the solution of this equation by the Complex Coordinate Method is described and applied to various published Scorer profiles.
D. S. Tannhauser, N. Moiseyev
doaj +1 more source
Advances in Sustainable and Wearable Textile Based Soft Robotics
Advanced Functional Materials, EarlyView.This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas +6 more
wiley +1 more source
Interface Effects in Ultrathin Silicon on Insulator Films
Advanced Functional Materials, EarlyView.This work establishes a systematic framework to discriminate how bulk and interface phenomena affect charge transport in ultrathin P‐doped silicon‐on‐insulator (SOI) films. For Si films below 15 nm, electrical characterization demonstrates that interface states drive charge transport, shifting the metal‐insulator transition (MIT) critical dopant ...
Andrea Pulici +8 more
wiley +1 more source
Shaping Matter with Acoustic Waves: From Particles to Functional Structures
Advanced Functional Materials, EarlyView.Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg +5 more
wiley +1 more source
Uniform analytical representation of the continuous spectrum excited by dipole sources in a multilayer dielectric structure through weighted cylindrical leaky waves [PDF]
, 2004 In this work, an original closed-form evaluation is performed for the continuous-spectrum field excited by a dipole source in substrate-superstrate configurations, which have been employed in microwave planar antennas.
GALLI, Alessandro +5 more
core +3 more sources
Advanced Functional Materials, EarlyView.Rutile GeO2${\rm GeO}_{2}$ exhibits orientation‐dependent heat transport with temperature‐dependent anisotropy, showing higher cross‐plane thermal conductivity along [001] than along the equivalent in‐plane [100] and [010] directions. Temperature‐dependent TDTR measurements and first‐principles phonon calculations identify the microscopic phonon ...
Pouria Emtenani +9 more
wiley +1 more source