Results 21 to 30 of about 14,554 (296)

TCM Analysis of Defected Ground Structures for MIMO Antenna Designs in Mobile Terminals

open access: yesIEEE Access, 2017
In this paper, the theory of characteristic modes (TCMs) is used for the first time to analyze the behavior of defected ground structures (DGS), when added to antenna designs.
Asim Ghalib, Mohammad S. Sharawi
doaj   +1 more source

Missing linkers : an alternative pathway to UiO-66 electronic structure engineering [PDF]

open access: yes, 2017
UiO-66 is a promising metal-organic framework for photocatalytic applications. However, the ligand-to-metal charge transfer of an excited electron is inefficient in the pristine material.
De Vos, Arthur   +4 more
core   +3 more sources

A Reconfigurable Filter Using Defected Ground Structure for Wideband Common-Mode Suppression

open access: yesIEEE Access, 2019
A wideband common-mode (CM) suppression reconfigurable filter is proposed for high-speed all-pass differential circuits. The filter adopts three varactor-loaded compact defected ground structures (DGSs) to achieve continuous reconfigurability in its ...
Zhibin Zeng   +2 more
doaj   +1 more source

Unequal Bandpass Filtering Power Divider Based on Hybrid HMSIW-SSPP Modes

open access: yesFrontiers in Physics, 2022
This letter presents a novel unequal bandpass filtering power divider based on hybrid-mode of half mode substrate integrated waveguide (HMSIW) and spoof surface plasmon polaritons (SSPPs).
Bai Cao Pan   +5 more
doaj   +1 more source

Fe clusters (Fe$_n$, n=1-6) chemisorbed on vacancy defects in graphene: Stability, spin-dipole moment and magnetic anisotropy [PDF]

open access: yes, 2014
In this work, we have studied the chemical and magnetic interactions of Fe$_n$ ; n=1-6 clusters with vacancy defects (monovacancy to correlated vacancies with six missing C atoms) in a graphene sheet by ab-initio density functional calculations combined ...
Bhandary, Sumanta   +6 more
core   +2 more sources

A compact ultra wideband bandpass filter using arrow coupled lines with defected ground structure

open access: yesJournal of Electrical Systems and Information Technology, 2014
A new ultra wideband bandpass filter (UWB-BPF) using arrow coupled lines and U-slot defected ground structures (U-DGS) is proposed. The input and output feeding lines are connected to the coupled lines placed on the conductor side of the substrate while ...
Deena A. Salem   +2 more
doaj   +1 more source

Formation of defects in multirow Wigner crystals

open access: yes, 2011
We study the structural properties of a quasi-one-dimensional classical Wigner crystal, confined in the transverse direction by a parabolic potential.
A. D. Klironomos   +3 more
core   +1 more source

Wideband and UWB antennas for wireless applications. A comprehensive review [PDF]

open access: yes, 2017
A comprehensive review concerning the geometry, the manufacturing technologies, the materials, and the numerical techniques, adopted for the analysis and design of wideband and ultrawideband (UWB) antennas for wireless applications, is presented. Planar,
Cicchetti, Renato   +2 more
core   +3 more sources

An Overview of Defected Ground Structure with Practical Application of Defected Ground Structure Bandpass Filter in Energy Harvester Circuit

open access: yesResearch Journal of Applied Sciences, Engineering and Technology, 2014
The aim of the study is to practically implement the Defected Ground Structure (DGS) based microstrip bandpass filter in an energy harvester circuit. DGS is widely used to bring about an enhancement in the characteristics of microwave circuits. The study of DGS is derived from the concept of Photonic/electromagnetic Band Gap (PBG) structures but it is ...
M.T. Khan   +5 more
openaire   +1 more source

Monte Carlo study of linear chain submonolayer structures.Application to Li/W(112)

open access: yes, 2003
The lattice gas model for adsorption of alkaline elements on W(112) surface is studied by Monte Carlo simulations. The model includes dipole--dipole interaction as well as long-range indirect interaction. The numerical results show that truncation of the
Bagehorn   +27 more
core   +1 more source

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