Results 21 to 30 of about 291,893 (342)

Method of phase compensation and pattern transformation for array antennas with arbitrarily oriented circularly polarised elements

open access: yesIET Microwaves, Antennas & Propagation, 2023
The inconsistent polarised directions and the radiation pattern transformation of the elements need to be considered in the analysis and simulation of large circularly polarised conformal arrays. Without relying on full‐wave simulations of the full array,
Zhongtian Jing, Yubing Han
doaj   +1 more source

Review on Ultra-Wideband Phased Array Antennas

open access: yesIEEE Access, 2021
Ultra-wideband (UWB) phased array antennas are essential for radar, communication, and Electronic Warfare (EW) applications. Systems can operate over wide-band coverage. The high gain systems require wide-band, wide-angle scanning, good radiation pattern,
Thokala Latha   +3 more
doaj   +1 more source

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

Nonreciprocal Phased-Array Antennas [PDF]

open access: yesPhysical Review Applied, 2019
26 pages; 16 figures; 1 ...
Zang, J. W.   +2 more
openaire   +2 more sources

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

Hierarchical sinuous-antenna phased array for millimeter wavelengths [PDF]

open access: yes, 2018
We present the design, fabrication and measured performance of a hierarchical sinuous-antenna phased array coupled to superconducting transition-edge-sensor (TES) bolometers for millimeter wavelengths.
A. Cukierman   +4 more
semanticscholar   +1 more source

Review of Photonic Integrated Optical Phased Arrays for Space Optical Communication

open access: yesIEEE Access, 2020
A review of photonic integrated optical phased array (OPA) for space optical communication is presented. We review and summarize the typical works of the photonic integrated OPAs with one-dimensional and two-dimensional optical antenna array in recent ...
Jingwen He, T. Dong, Yue Xu
semanticscholar   +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

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

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