Results 51 to 60 of about 16,741 (297)

RF MEMS Based Tunable Bowtie Shaped Substrate Integrated Waveguide Filter [PDF]

open access: yes, 2015
A tunable bandpass filter based on a technique that utilizes substrate integrated waveguide (SIW) and double coupling is presented. The SIW based bandpass filter is implemented using a bowtie shaped resonator structure.
Baharudin, Z.   +4 more
core   +1 more source

Three‐dimensional Antimony Sulfide Based Flat Optics

open access: yesAdvanced Functional Materials, EarlyView.
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang   +18 more
wiley   +1 more source

A novel Multi-permittivity Cylindrical Dielectric Resonator Antenna for Wideband Applications [PDF]

open access: yes, 2014
In this paper, a novel multi-permittivity cylindrical dielectric resonator antenna for wideband application is presented. The multi-permittivity cylinder is formed by combining two different permittivity material sectors in such a way that each sector ...
Abdullah, M. Z.   +6 more
core   +3 more sources

A RECONFIGURABLE METASURFACE IN THE FORM OF A FABRY-PÉROT RESONATOR, INVOLVING SEMI-TRANSPARENT MIRRORS AND A NONLINEAR DIELECTRIC INSERT [PDF]

open access: yesRadio Physics and Radio Astronomy
Subject and Purpose. The paper is aimed at suggesting ways for implementing electromagnetic devices that would involve a nonlinear dielectric inside the structure for concentrating electromagnetic field within it at relatively low intensities of the ...
Ye. O. Antonenko   +3 more
doaj   +1 more source

Miniaturized top-metallized rectangular dielectric resonator antenna [PDF]

open access: yes, 2018
In this paper, a modal analysis of a rectangular dielectric resonator antenna (DRA), with unconventional boundary conditions, is carried out. Analytical equations of the fields inside the resonator and simulations are presented, showing that if a ...
Herraiz Martínez, Francisco Javier   +2 more
core  

Enhanced transmission of electromagnetic waves through split-ring resonator-shaped apertures [PDF]

open access: yes, 2011
The design of aperture shape is a promising approach for enhanced transmission through a subwavelength aperture. We designed split-ring-resonator (SRR)-shaped apertures in order to increase the transmission through subwavelength apertures by making use ...
Aydin, Koray   +3 more
core   +2 more sources

PEDOT‐Based Eutectogel Electrode Arrays for Enhanced High‐Resolution Electrogastrography: Fabrication, Stability, and Wearable Performance

open access: yesAdvanced Functional Materials, EarlyView.
Here, we present a high‐density PEDOT eutectogel electrode array for enhanced body surface gastric mapping. Silver electrodes are blade‐coated onto flexible substrates, followed by electrogelation of PEDOT:PSS and the deposition of a PEDOT:LS eutectogel.
Christopher Slaughter   +8 more
wiley   +1 more source

A critical review on the development of multi-geometrical stacked wideband dielectric resonator antenna

open access: yesAlexandria Engineering Journal
Dielectric resonator antennas (DRAs) use dielectric material as a resonator to accomplish high radiation efficiency and avoid severe conductor loss. The dielectric material that behaves as a resonator is plagued by a number of limitations, including ...
Mohamad Faiz Mohamed Omar   +7 more
doaj   +1 more source

Microstrip Patch Antennas Fed by Substrate Integrated Waveguide [PDF]

open access: yes, 2013
Dizertační práce je zaměřena na výzkum mikropáskových flíčkových antén a anténních řad napájených vlnovodem integrovaným do substrátu (SIW). Využitím vlnovodu integrovaného do substrátu pro napájení mikropáskové flíčkové antény dochází ke kombinaci ...
Mikulášek, Tomáš
core  

A stable subgridding algorithm and its application to eigenvalue problems [PDF]

open access: yes, 1999
In this paper, a new and stable subgridding algorithm is proposed for three-dimensional problems which provides subgridding in both space and time. The concept of an equivalent-circuit representation and a novel leapfrog time integration scheme is used ...
Krishnaiah, KM, Railton, CJ
core   +2 more sources

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