Results 11 to 20 of about 1,446 (215)

Impact of dielectric substrate on the performance of an 8 × 8 magneto-electric dipole phased array antenna for 5G mmWave applications

open access: yesFrontiers in Communications and Networks, 2023
The impact of the substrate dielectric material on the performance of a wideband magneto-electric dipole (MED) phased array antenna is systematically studied in this article. Four commercially available dielectric substrates for mmWave applications, i.e.,
Wai Yan Yong   +2 more
doaj   +1 more source

FORMATION OF THE DIRECTION DIAGRAM IN PHASED ANTENNA ARRAY

open access: yesРоссийский технологический журнал, 2019
The article presents the results of the study of phase and temporal methods in the formation of the direction diagram of phased antenna array, and carries out a comparative analysis using an eight-element equidistant antenna array based on Vivaldi ...
N. M. Legkiy, I. V. Unchenko
doaj   +1 more source

Performance Enhancement of mm-Wave Phased Arrays for Mobile Terminals Through Grounded Coplanar Waveguide Feeding Networks With via Fences

open access: yesFrontiers in Communications and Networks, 2021
This paper presents a design methodology focused on feeding networks that can improve the insertion loss and coverage efficiencies of millimeter-wave (mm-Wave) phased arrays in mobile terminals.
Jae-Yeong Lee   +4 more
doaj   +1 more source

PROSPECTS FOR THE DEVELOPMENT OF PHASED ANTENNA ARRAYS

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2016
This article describes the main achievements in the development of phased antenna arrays (par) in the past decade. Provides an overview of the most famous systems based on the PAR and PAR based on MMIC technology - PAR in radar stations, PAR to control ...
A. P. Dzuba
doaj   +1 more source

Satellite Swarm-Based Antenna Arrays for 6G Direct-to-Cell Connectivity

open access: yesIEEE Access, 2023
Direct connectivity in L/S frequency bands between satellites and common mobile terrestrial user equipment (UE), such as smartphones, is an essential feature for future 6G non-terrestrial networks.
Diego Tuzi   +2 more
doaj   +1 more source

Integrated circular optical phased array [PDF]

open access: yesEPJ Web of Conferences, 2021
Existing OPAs are typically based on 2D rectangular arrays or 1D linear arrays. Both approaches present a limited field-of-view (FOV) due to the presence of the grating lobes when the element spacing is larger than λ/2.
Liu Qiankun   +5 more
doaj   +1 more source

DIRECTIVITY OF ANTENNA ARRAYS [PDF]

open access: yesRadio Physics and Radio Astronomy, 2016
Purpose: Theoretical investigation of directive gains of linear and planar antenna arrays depending on the distance between radiators and wavelength.
A. A. Bulgakovа   +3 more
doaj   +1 more source

Wi-Fi Access Point Design Concept Targeting Indoor Positioning for Smartphones and IoT

open access: yesSensors, 2022
Indoor positioning systems (IPS) have been regarded as essential for many applications, particularly for smartphones, during the past decade. With the internet of things (IoT), and especially device-to-device (D2D) cases, the client is supposed to have a
Mohamed S. El-Gendy   +2 more
doaj   +1 more source

Analytical beampattern synthesis for symmetric nonuniform linear array based on superposition principle

open access: yesElectronics Letters, 2023
In this letter, an analytical method for the beampattern synthesis of symmetric nonuniform array is proposed. This method consists of two steps. In the first step, it acquires a real symmetric excitation by the convex optimization method to attain a ...
Fei Shi, Mengkai Hu, Xiuquan Dou
doaj   +1 more source

Analysis of beampattern dwell time for planar frequency diverse array

open access: yesIET Signal Processing, 2021
Frequency diverse array (FDA) has received much attention due to its both range–angle‐dependent beampattern. However, most of the existing works focus on the linear FDA, and time‐varying characteristics of its beampattern only give a rough qualitative ...
Hui Chen, Zi‐Hao Li, Wen‐Qin Wang
doaj   +1 more source

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