Results 31 to 40 of about 1,807 (185)

Methods for solving incorrect tasks of electrodynamic analysis of radiating structures based on chiral metamaterials

open access: yesФизика волновых процессов и радиотехнические системы, 2019
This article is devoted to the development of correct methods for electrodynamic analysis of single and multi-element radiating structures with substrates of chiral metamaterials.
A.L. Buzov   +5 more
doaj   +1 more source

Evaluation of electric and magnetic fields distribution and SAR induced in 3D models of water containers by radiofrequency radiation using FDTD and FEM simulation techniques

open access: yes, 2014
In this study, two software packages using different numerical techniques FEKO 6.3 with Finite-Element Method (FEM) and XFDTD 7 with Finite Difference Time Domain Method (FDTD) were used to assess exposure of 3D models of square, rectangular, and ...
Abdelsamie, Maher A. A.   +3 more
core   +1 more source

Antenna layout and EMC simulation of tethered multi rotor UAV communication system

open access: yesDianzi Jishu Yingyong
This paper designs an antenna layout for tethered multi rotor UAV communication system,conducts EMC simulation analysis between antennas using FEKO software, and conducts actual installation and flight test.
Cheng Xiaojie, Dai Yu
doaj   +1 more source

Submillimeter wave communication versus millimeter wave communication

open access: yesDigital Communications and Networks, 2020
This paper studies the performance of a submillimeter wave antenna operating between frequencies 0.1 THz and 10 THz with a 4-cyano-4-pentylbiphenyl [5CB] substrate.
Madhuprana Goswami, Hyuck M. Kwon
doaj   +1 more source

Electromagnetic scattering by a circular cavity of arbitrary shape placed in a perfect electric conductor

open access: yesIET Microwaves, Antennas & Propagation, 2022
An efficient modal expansion technique for scattering by a circular cavity with an arbitrary arc in a perfect electric conductor is developed. In contrast to the existing methods proposed for a shallow or semi‐circular cavity, the proposed method can be ...
Mehdi Bozorgi
doaj   +1 more source

Analysis of Eddy currents induced by transverse and longitudinal gradient coils in different tungsten collimators geometries for SPECT/MRI integration [PDF]

open access: yes, 2015
A
Joseph, Wout   +7 more
core   +3 more sources

An Equivalent Scattering Method for a Novel Cellular Medium

open access: yesIEEE Access, 2020
A new novel structure is proposed for cellular composite radar absorbing materials, and an equivalent method of electromagnetic scattering for the new material is also proposed for the first time.
Jiong Yang   +3 more
doaj   +1 more source

Structural Design and Electrical Characteristics Analysis of Mid-Load Whip Antenna

open access: yesInternational Journal of Antennas and Propagation, 2022
In order to facilitate the integration of the offshore surface antenna and reduce the manufacturing cost, the resonance shortening length and omnidirectional radiation performance of a centrally loaded whip antenna are analyzed.
Menglei Xiu, Lihua Li, Shimin Feng
doaj   +1 more source

A broadband stable addition theorem for the two dimensional MLFMA [PDF]

open access: yes, 2009
Integral equations arising from the time-harmonic Maxwell equations contain the Green function of the Helmholtz equation as the integration kernel. The structure of this Green function has allowed the development of so-called fast multipole methods (FMMs)
Bogaert, Ignace, Olyslager, Femke
core   +1 more source

Estimating Soil Electrical Parameters in the Canadian High Arctic From Impedance Measurements of the MIST Antenna Above the Surface

open access: yesGeophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract The MIST experiment aims to detect the cosmological 21‐cm signal through sky observations at 25–125 MHz using a wide‐beam antenna. The antenna is mounted above the soil and the beam characteristics are highly dependent on the soil's electrical properties.
I. Hendricksen   +15 more
wiley   +1 more source

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