Results 11 to 20 of about 178,770 (305)

A Wideband Feed Network for Vivaldi Antenna Arrays

open access: yesInternational Journal of Antennas and Propagation, 2022
A wideband feed network for a Vivaldi antenna array is presented. A limitation of current wideband antenna arrays is the bandwidth of either the feed network or the antenna element.
Natasha Antoinette Hall   +2 more
doaj   +1 more source

Theory, Design, and Implementation of a New Family of Ultra-Wideband Metamaterial Microstrip Array Antennas Based on Fractal and Fibonacci Geometric Patterns [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2020
The theory and design of a new family of ultra-wideband (UWB) metamaterial (MTM) microstrip array antennas based on fractal and Fibonacci geometric patterns are investigated.
Besharat Rezaei Shookooh   +2 more
doaj   +1 more source

A Review of Synthesis Techniques for Phased Antenna Arrays in Wireless Communications and Remote Sensing

open access: yesInternational Journal of Antennas and Propagation, 2021
Electronically controlled antenna arrays, such as reconfigurable and phased antenna arrays, are essential elements of high-frequency 5G communication hardware.
Stanislav Ogurtsov   +2 more
doaj   +1 more source

Microstrip patch antenna array for range extension of RFID applications [PDF]

open access: yes, 2008
In this paper, an UHF band 2X2 microstrip phased antenna array is designed for extending the range of an RFID reader system. The phased antenna array operates at the frequency of 867 MHz, as specified in Gen2 protocol European standards.
Abbak, Mehmet   +2 more
core   +1 more source

RFID coverage extension using microstrip-patch antenna array [PDF]

open access: yes, 2009
In this paper, a UHF-band 2 x 2 microstrip phased-array antenna is designed and implemented to extend the coverage of an RFID reader system. The phased-array antenna has four microstrip-patch antennas, three Wilkinson power dividers, and a transmission ...
Abbak, Mehmet   +2 more
core   +1 more source

A novel circularly polarized slotted substrate integrated waveguide antenna array for satellite applications

open access: yesIET Microwaves, Antennas & Propagation, 2021
In this article, three novel slotted substrate integrated waveguide (SIW) antenna elements are demonstrated with different radiator configurations, namely, two arms Archimedean antenna, single‐arm spiral antenna (monofilar), and four concentric circular ...
Alla M. Eid   +2 more
doaj   +1 more source

Multi-Objective Synthesis of Filtering Dipole Array Based on Tuning-Space Mapping [PDF]

open access: yes, 2015
In the paper, we apply tuning-space mapping to multi-objective synthesis of a filtering antenna. The antenna is going to be implemented as a planar dipole array with serial feeding.
Lacik, J., Raida, Zbyněk, Vsetula, P.
core   +4 more sources

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

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 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

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