Results 21 to 30 of about 57,628 (317)

Optimal Three-Dimensional Antenna Array for Direction Finding With Geometric Constraint

open access: yesIEEE Access, 2020
This paper studies the optimal three-dimensional (3-D) antenna array for direction finding when the antenna array is subject to geometric constraint. Two-dimensional (2-D) planar array has been widely used in existing direction finding systems, and the ...
Si Li, Yinsheng Liu, Li You, Wenjin Wang
doaj   +1 more source

Design of a novel high gain dual-band common-aperture array antenna

open access: yesDianzi Jishu Yingyong, 2019
This paper presents a new ultra-wideband(UWB) high-gain dual-band common-aperture array antenna. The antenna consists of four T-shaped dual-polarized antennas, a 6×6 waveguide slot array antenna, and a circular metal substrate. The dual-polarized antenna
Qiao Xuguang   +5 more
doaj   +1 more source

A new multipath mitigation method for GNSS receivers based on antenna array [PDF]

open access: yes, 2012
the potential of small antenna array for multipath mitigation in GNSS systems is considered in this paper. To discriminate the different incoming signals (Line of sight and multipaths), a new implementation of the well known SAGE algorithm is proposed ...
Rougerie, Sébastien   +4 more
core   +1 more source

Transformation from a Single Antenna to a Series Array Using Push/Pull Origami

open access: yesSensors, 2017
We propose a push/pull origami antenna, transformable between a single antenna element and a three-element array. In limited space, the proposed origami antenna can work as a single antenna.
Syed Imran Hussain Shah, Sungjoon Lim
doaj   +1 more source

SATCOM Earth Station Arrays Anti-Jamming Based on MVDR Algorithm

open access: yesApplied Sciences, 2023
In modern life, a large amount of information is transmitted through satellites. The anti-jamming ability of satellite communication earth stations is the basis for ensuring the smooth flow of information.
Yanpeng Xi, Jian Liu, Wenhao Zhao
doaj   +1 more source

Antennas and Arrays [PDF]

open access: yes, 2017
This chapter opens with a brief review of some basic considerations of antennas. The main part of the chapter is concerned with the configurations of antennas in interferometers and synthesis arrays. It is convenient to classify array designs as follows: 1. Arrays with nontracking antennas 2. Interferometers and arrays with antennas
A. Richard Thompson   +2 more
openaire   +1 more source

Effect of antenna element properties and array orientation on performance of MIMO systems [PDF]

open access: yes, 2004
This paper presents a MIMO throughput based assessment of three candidate antenna arrays, each of which was constructed from a different type of antenna element. A model of the MIMO channel resolved in orthogonal polarization planes was employed to apply
Rogers, PR   +11 more
core   +1 more source

Optimization of a 12.5 GHz microstrip antenna array using Taguchi's method [PDF]

open access: yes, 2011
This Article is provided by the Brunel Open Access Publishing Fund - Copyright 2011 @ Hindawi PublishingThis paper presents Taguchi's optimization method implemented in the design of a single feed (without any matching network) 5×5 microstrip antenna ...
K. Tsiakmakis   +9 more
core   +1 more source

A Large Aperture UWB Antenna Array for Real Beam Radar Imaging

open access: yesInternational Journal of Antennas and Propagation, 2012
The development of four-element ultra-wideband (UWB) comb taper slot antenna array with 18 cm element spacing for real beam radar imaging is described. The four-element UWB array system with optimum element spacing is analyzed by energy pattern.
Chao-Hsiang Liao, Dau-Chyrh Chang
doaj   +1 more source

3D printed lattice structure for lightweight Ka‐band phased array antenna

open access: yesElectronics Letters, 2021
Here a lightweight antenna array is designed and fabricated for a Ka‐band phased array antenna. From the perspective of advanced space‐borne engineering practice, a Kagome lattice structure is proposed for the lightweight antenna array applications and ...
Peng Lyu   +5 more
doaj   +1 more source

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