Results 21 to 30 of about 140,738 (213)

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

Analysis and Experimental Demonstration of Reflectarray Antennas in Quasi-Regular Lattices

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
This paper presents investigations on reflectarray antennas using non-periodic element distributions. The study involves the analysis and design of two reflectarrays based on quasi-periodic lattices with rectangular and pentagonal profiles, whose ...
Borja Imaz-Lueje   +3 more
doaj   +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

Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics

open access: yesSensors, 2018
This article demonstrated an accurate analysis technique for dual-reflectarray antennas that take into account the angle of incidence of the impinging electric field on the main reflectarray cells. The reflected field on the sub and the main reflectarray
Carolina Tienda   +3 more
doaj   +1 more source

Evaluation of Multi-Faceted Reflectarray Configurations on SmallSats [PDF]

open access: yes, 2022
European Conference on Antennas and Propagation (16th. 2022. Madrid)In this paper, different configurations of multifaceted reflectarrays for small satellite platforms are evaluated.
Imaz Lueje, Borja   +2 more
core  

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

Hardware-Efficient Hybrid Precoding for Millimeter Wave Systems With Multi-Feed Reflectarrays

open access: yesIEEE Access, 2018
Current hybrid precoding schemes for large-scale antenna array-aided millimeter wave (mmWave) wireless systems adopt either full-connected or sub-connected architectures based on phased array antennas (PAAs).
Zhengyi Zhou   +3 more
doaj   +1 more source

A Review on the Development of Spaceborne Membrane Antennas

open access: yesSpace: Science & Technology, 2022
The membrane antenna technology is a very promising approach to obtain large aperture with light weight and low stowed volume. In the past decades, extensive studies have been carried out on active and passive membrane antennas.
Ming-Jian Li   +4 more
doaj   +1 more source

Advanced Design Methodologies and Novel Applications of Reflectarray Antennas [PDF]

open access: yes, 2012
Reflectarray antennas combine the numerous advantages of printed antenna arrays and reflector antennas and create a hybrid high-gain antenna with a low-profile, low-mass, and diversified radiation performance.
Nayeri, Payam
core   +1 more source

Bandwidth Behavior of Closely Spaced Aperture-Coupled Reflectarrays

open access: yesInternational Journal of Antennas and Propagation, 2012
The bandwidth features of reflectarray antennas are analyzed by examining in detail the phase errors due to the compensation mechanism for spatial phase delays.
F. Venneri, S. Costanzo, G. Di Massa
doaj   +1 more source

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