Results 21 to 30 of about 6,007 (164)

An improved one-dimensional sinusoidal band-stop filter using weighted techniques

open access: yesAIP Advances, 2022
In this paper, the weighting techniques are directly acted on traditional 1D sinusoidal electromagnetic bandgap (EBG) structures. The proposed 1D weighted EBG band-stop filter is theoretically designed by using coupled-mode theory, and the coupling ...
Zhaohong Wang   +3 more
doaj   +1 more source

3D-Printed Electromagnetic Band-Gap Band-Pass Filter Based on Empty Single-Ridge Waveguide

open access: yesIEEE Access, 2022
In this work, a new method for the design of band-pass filters in an empty waveguide by using periodic structures is presented in a theoretical and experimental way.
Hector Garcia-Martinez   +5 more
doaj   +1 more source

Novel Design of Electromagnetic Bandgap Using Fractal Geometry

open access: yesInternational Journal of Antennas and Propagation, 2013
A novel electromagnetic bandgap (EBG) structural design based on Fractal geometry is presented in this paper. These Fractals, which are the Sierpinski triangles, are arranged to repeat each 60° to produce the hexagonal unit cells.
Huynh Nguyen Bao Phuong   +2 more
doaj   +1 more source

A TUNABLE ELECTROMAGNETIC BANDGAP STRUCTURE USING PLASMA

open access: yesProgress In Electromagnetics Research C, 2014
tunable electromagnetic-bangap (EBG) structure based on a double layer slotline using plasma is proposed. The plasma permittivity can be tuned by the electron density. The idea of integrating periodical plasma elements inside the slot to tune the stopband is investigated. An electron density and an electron collision frequency equal to 1.75 10 13 cm -3
Kallel, Asma   +3 more
openaire   +2 more sources

Description of bandgaps opening in chiral phononic crystals by analogy with Thomson scattering

open access: yesNew Journal of Physics, 2023
Chiral phononic crystals (PnCs) provide unique properties not offered by conventional metamaterial based on classic Bragg scattering and local resonance.
Wei Ding   +6 more
doaj   +1 more source

Electromagnetic Bandgap Backed Millimeter-Wave MIMO Antenna for Wearable Applications

open access: yesIEEE Access, 2019
A millimeter-wave (mm-Wave) multiple input multiple output (MIMO) antenna operating at 24 GHz (ISM band), suitable for wearable applications, is proposed in this paper.
Amjad Iqbal   +6 more
doaj   +1 more source

Performance limits of high voltage press-pack SiC IGBT and SiC MOSFET devices

open access: yesPower Electronic Devices and Components, 2022
Considering the switching frequency limit and electromagnetic interference, the selection of high voltage SiC IGBT and SiC MOSFET is confusing due to punch-through effect and bipolar characteristics of SiC IGBT.
Lubin Han   +4 more
doaj   +1 more source

Amplitude and Phase Tuning of Microwave Signals in Magnetically Biased Permalloy Structures

open access: yesIEEE Access, 2020
In this paper, a permalloy layer has been employed in the fabrication of a coupled line electromagnetic bandgap (EMBG) device to tune both amplitude and phase.
Martino Aldrigo   +7 more
doaj   +1 more source

Improved wearable, breathable, triple-band electromagnetic bandgap-loaded fractal antenna for wireless body area network applications

open access: yesETRI Journal
A compact triple-band porous electromagnetic bandgap structure-loaded coplanar-waveguide-fed wearable antenna is introduced for applications of wireless body area networks.
Mallavarapu Sandhya, Lokam Anjaneyulu
doaj   +1 more source

A Compact and Multi-Stack Electromagnetic Bandgap Structure for Gigahertz Noise Suppression in Multilayer Printed Circuit Boards

open access: yesApplied Sciences, 2017
In modern printed electronics, the performances of a circuit and a device are severely deteriorated by the electromagnetic noise in the gigahertz (GHz) frequency range, such as the simultaneous switching noise and ground bounce noise. A compact and multi-
Myunghoi Kim, Seungyoung Ahn
doaj   +1 more source

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