Results 21 to 30 of about 1,829,302 (216)

Study of array plasma antenna parameters

open access: yesAIP Advances, 2018
This paper is aimed to investigate the array plasma antenna parameters to help the optimization of an array plasma antenna. Single plasma antenna is transformed into array plasma antenna by changing the operating parameters. The re-configurability arises
Rajneesh Kumar, Prince Kumar
doaj   +1 more source

Design of a Millimeter-Wave MIMO Antenna Array for 5G Communication Terminals

open access: yesItalian National Conference on Sensors, 2022
This paper presents a design of multiple input multiple output (MIMO) antenna array for 5G millimeter-wave (mm-wave) communication systems. The proposed MIMO configuration consists of a two antenna arrays combination.
J. Khan   +5 more
semanticscholar   +1 more source

Dual-Band Shared Aperture Reflectarray and Patch Antenna Array for S- and Ka-Bands

open access: yesIEEE Transactions on Antennas and Propagation, 2022
In this communication, a dual-band shared aperture antenna is presented. The proposed antenna achieves dual-band operation by housing both a low-frequency patch antenna array and a high-frequency reflectarray in the same aperture area.
D. E. Serup, G. Pedersen, Shuai Zhang
semanticscholar   +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

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

A Deep Learning-Based Approach for Radiation Pattern Synthesis of an Array Antenna

open access: yesIEEE Access, 2020
In this paper, we propose a deep neural network (DNN)- for the radiation pattern synthesis of an antenna. The DNN utilizes the radiation patterns as inputs and the amplitude and phase of the antenna elements as outputs.
Jae Hee Kim, S. Choi
semanticscholar   +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

A New mm-Wave Antenna Array with Wideband Characteristics for Next Generation Communication Systems

open access: yesElectronics, 2022
This paper presents a planar multi-circular loop antenna with a wide impedance bandwidth for next generation mm-wave systems. The proposed antenna comprises three circular rings with a partial ground plane with a square slot.
Mehre E. Munir   +10 more
semanticscholar   +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

Atacama compact array antennas [PDF]

open access: yesSPIE Proceedings, 2012
We report major performance test results of the Atacama Compact Array (ACA) 7-m and 12-m antennas of ALMA (Atacama Large Millimeter/submillimeter Array). The four major performances of the ACA antennas are all-sky pointing (to be not more than 2.0 arcsec), offset pointing (to be < 0.6 arcsec) surface accuracy (< 25(20) micrometer for 12(7)m ...
Saito, Masao   +10 more
openaire   +2 more sources

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