Results 21 to 30 of about 162,087 (215)

A Reflectarray Antenna Using Hexagonal Lattice With Enhanced Beam Steering Capability

open access: yesIEEE Access, 2019
This paper presents a novel reflectarray antenna with enhanced beam steering capability. The reflectarray antenna is based on the hexagonal distribution of the unit cells on the antenna surface.
Orcun Kiris, Kagan Topalli, Mehmet Unlu
doaj   +1 more source

Solar-Powered Active Integrated Antennas Backed by a Transparent Reflectarray for CubeSat Applications

open access: yesIEEE Access, 2020
A gain-enhancement scheme that combines an active integrated antenna (AIA) and an optically transparent reflectarray on solar cells is proposed for CubeSat applications.
Yen-Sheng Chen   +2 more
doaj   +1 more source

Investigation on convex Conformal Reflectarray Antennas exploiting double parameter technique [PDF]

open access: yes, 2016
In this paper, some results about the design and the full-wave analysis of Printed Conformal Reflectarray Antennas, able to work in the Ka band, using non-conventional re-radiating elements are presented.
Paola Pirinoli   +5 more
core   +1 more source

Design and Analysis of Square and Torus ring Shaped Material - Unit cells for X-Band Reflectarray [PDF]

open access: yesEPJ Web of Conferences
A Reflectarray antenna is considered a hybrid antenna fed with microstrip, and elements of the antenna are designed to comprise features of both reflector and phased array antennas.
Chitra S.   +3 more
doaj   +1 more source

Design of Microfluidic Reflectarray Elements for Multi-Reconfiguration Using Liquid Metal

open access: yesIEEE Open Journal of Antennas and Propagation, 2022
Using an alloy of non-toxic liquid metal (Galinstan) is proposed to implement multi-reconfiguration in reflectarray elements. Reflectarray antennas are an interesting technology for dynamically controlling, simultaneously or individually, different ...
Eduardo Carrasco   +4 more
doaj   +1 more source

Reflectarray Antennas for Dual Polarization and Broadband Telecom Satellite Applications [PDF]

open access: yes, 2015
A reflectarray antenna with improved performance is proposed to operate in dual-polarization and transmit-receive frequencies in Ku-band for broadcast satellite applications. The reflectarray element contains two orthogonal sets of four coplanar parallel
Rodríguez Boix, Rafael   +4 more
core   +1 more source

Modified Phoenix cell for microstrip reflectarray antennas [PDF]

open access: yes2013 IEEE Antennas and Propagation Society International Symposium (APSURSI), 2012
This paper presents a modification on the structure of a recently proposed microstrip reflectarray cell, called Phoenix [4]. Phoenix cell was developed to operate in the X-band frequency range for a linearly polarized microstrip reflectarray antenna.
Ibrahim, Sarah, Hammad, Hany
openaire   +2 more sources

High-Efficiency Dielectric Reflectarray Antennas With Ultra-Wideband Characteristics

open access: yesIEEE Access, 2021
In this study, a K-band offset dielectric reflectarray antenna, having high aperture efficiency and ultra-wideband characteristics, was designed. A column-type dielectric unit cell was employed for the dielectric reflectarray elements.
Eun-Cheol Choi, Sangwook Nam
doaj   +1 more source

Analysis of dual-reflector antennas with a reflectarray as subreflector [PDF]

open access: yes, 2008
In this paper, a modular technique is described for the analysis of dual-reflector antennas using a reflectarray as a subreflector. An antenna configuration based on a sub-reflectarray and a parabolic main reflector provides better bandwidth than a ...
Leandro De Haro   +7 more
core   +1 more source

Wideband Design and Optimization of Reflectarray Antennas [PDF]

open access: yes, 2022
International Conference on Antennas and Electromagnetic Systems (8th. 2022. Marrakesh, Morocco)This paper describes a technique for the design and optimization of wideband reflectarrays based on the generalized intersection approach and a direct layout ...
Rodriguez Prado, Daniel   +4 more
core   +1 more source

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