Results 21 to 30 of about 591,807 (331)
A Wideband Circularly Polarized Magnetoelectric Dipole Antenna for 5G Millimeter-Wave Communications
Sensors, 2022 In this paper, a wideband circularly polarized (CP) magnetoelectric (ME) dipole antenna operating at 28 GHz band was proposed for 5G millimeter-wave (mm-wave) communications.
Hussain Askari +4 more
doaj +1 more source
Inversion of a Thunderstorm Cloud Charging Model Based on a 3D Atmospheric Electric Field
Applied Sciences, 2018 The measurement of the atmospheric electric field is of great significance for the study of thunderstorm cloud charge models. Traditional electric field meters can only measure the vertical component of the atmospheric electric field, and thus it is ...
Wei Xu +3 more
doaj +1 more source
Fully Planar Dual-Polarized Broadband Antenna for 3G, 4G and Sub 6-GHz 5G Base Stations
IEEE Access, 2020 A fully planar dual polarized radiating element with internal embedded coupled dipoles is presented in this paper. The inclusion of these elements allows achieving three different goals: firstly, an extension of the bandwidth towards lower frequencies ...
Sergio Martin-Anton +1 more
doaj +1 more source
Crystals, 2023 Manipulating radiation patterns is challenging, especially at low frequencies. In this paper, we demonstrate that acoustic metamaterials arranged as an array of quadrupoles remarkably improve the directionality of acoustic radiation at low frequencies ...
Qinglei Zeng +3 more
doaj +1 more source
Сучасні інформаційні системи, 2022 . The problem of modeling the propagation local magnetic fields and spatially dispersed sources is large errors compared to field measurements. An important aspect of adequate modeling is the use of the correct mathematical apparatus.
Larysa Levchenko +2 more
doaj +1 more source
Dipole–Dipole Interactions in Microtubules [PDF]
Journal of Biological Physics, 2005 Dimers in microtubules possess a dipole moment with components along three axes. The interaction energy among all dipole components in a microtubule was calculated for an un-deformed and an elliptically deformed microtubule in a "dry" condition. The interaction energy was found to increase with deformation.
openaire +3 more sources
Compact, Broadband, and Omnidirectional Antenna Array for Millimeter-Wave Communication Systems
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2021 In this paper, a millimeter-wave printed quadrupole antenna is proposed. It consists of two symmetric printed dipoles that make the quadrupole radiating power omnidirectionally.
Yuanzhi Liu, Mustapha C. E. Yagoub
doaj +1 more source
Charge-dipole and dipole-dipole interactions in two-dimensional materials
Physical Review B, 2022 We derive the explicit analytical form for the charge-dipole and dipole-dipole interactions in 2D configuration space. We demonstrate that the reduction of dimensionality can alter the charge-dipole and dipole-dipole interactions in 2D case. The asymptotics of these interactions at large distances coincide to the charge-dipole and dipole-dipole ...
Roman Ya. Kezerashvili +1 more
openaire +2 more sources
Color Dipole Systematics of the Diffraction Slope in Diffractive Photo- and Electroproduction of Vector Mesons [PDF]
, 2000 We present the first evaluation of the color dipole diffraction slope from the data on diffractive photo- and electroproduction of vector mesons. The energy and dipole size dependence of the found dipole diffraction slope are consistent with the color ...
Adloff +63 more
core +3 more sources
Effect of Bandage Materials on Epidermal Antenna
Engineering Proceedings, 2023 This study explores the effect of different types of bandages on the performance of an epidermal antenna. Three identical dipole antennas are designed on three different types of bandages, and the measured reflection coefficients, S11, show that the ...
Irfan Ullah +3 more
doaj +1 more source