Results 21 to 30 of about 15,211 (304)
A Subcell Finite-Difference Time-Domain Implementation for Narrow Slots on Conductive Panels
Efficiently modeling thin features using the finite-difference time-domain (FDTD) method involves a considerable reduction in the spatial mesh size. However, in real-world scenarios, such reductions can lead to unaffordable memory and CPU requirements ...
Miguel Ruiz Cabello +7 more
doaj +1 more source
The implementation of wideband 90° hybrids on non‐optimal substrates
A new technique to implement wideband 90° hybrid coupling profiles on non‐optimal substrate configurations is presented. The technique uses an impedance taper over the whole length of the hybrid to remove the restriction of a substrate defined maximum ...
Johan B. du Toit +2 more
doaj +1 more source
Surface Plasmon Resonance sensor based on a D-shaped photonic crystal fiber with a bimetallic layer [PDF]
The investigation of a D-shaped photonic crystal fiber sensor with a bimetallic layer for operation at the visible and infrared spectra is presented. The bimetallic layer is composed by silver and gold slabs deposited adjacently on the flat face of the ...
Cardoso Markos P. +7 more
doaj +1 more source
10 pages, 1 figure, matches published version plus a note ...
Samuel E. Gralla, Kunal Lobo
openaire +2 more sources
Anomalous Reflection From a Phase Gradient Metasurface With Arbitrary Incident Angle
A planar phase gradient metasurface (PGM) with phase gradients in two in-plane directions will introduce two additional wave vectors to the reflected wave vector.
Wihan Barnard +2 more
doaj +1 more source
Udgivelsesdato ...
Andersen, Jørgen Bach +4 more
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Histories electromagnetism [PDF]
Working within the HPO (History Projection Operator) Consistent Histories formalism, we follow the work of Savvidou on (scalar) field theory [J. Math. Phys. 43, 3053 (2002)] and that of Savvidou and Anastopoulos on (first-class) constrained systems [Class. Quantum Gravt.
openaire +3 more sources
The electromagnetic analog of an elastic spring-mass network is constructed. These electromagnetic circuits offer the promise of manipulating electromagnetic fields in new ways, and linear electrical circuits correspond to a subclass of them. They consist of thin triangular magnetic components joined at the edges by cylindrical dielectric components ...
Graeme W. Milton, Pierre Seppecher
openaire +2 more sources
New theories on electromagnetism and on light and colors
Completely new theories on two fields. 1) Electromagnetism 2) Light and colors The theories are based on very simple and very easily reproducible experiments, some of them, although simple, still very impressive and yet not known.
Mitko Gorgiev
core +1 more source
The characteristics of fiber Bragg grating (FBG) in cyclic transparent fluoropolymer (CYTOP) optical fiber have attracted more and more attention in recent years.
Ying-Gang Nan +5 more
doaj +1 more source

