Results 11 to 20 of about 9,058 (257)

Radiation Analysis and Characteristics of Conformal Reflectarray Antennas [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2012
This paper investigates the feasibility of designing reflectarray antennas on conformal surfaces. A generalized analysis approach is presented that can be applied to compute the radiation performance of conformal reflectarray antennas.
Payam Nayeri   +2 more
doaj   +2 more sources

A Review of Wideband Reflectarray Antennas for 5G Communication Systems [PDF]

open access: yesIEEE Access, 2017
The advancement in the current communication technology makes it incumbent to analyze the conventional features of reflectarray antenna for future adaptability.
Muhammad Hashim Dahri   +3 more
doaj   +2 more sources

Resonant Elements for Tunable Reflectarray Antenna Design [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2012
This paper presents an accurate analysis of different configurations of reflectarray resonant elements that can be used for the design of passive and tunable reflectarrays.
M. Y. Ismail, M. Inam
doaj   +2 more sources

Stretchable-Substrate-Impregnated Fabric: Deployable Reflectarray Antennas for CubeSats

open access: yesIEEE Access
This paper proposes a stretchable-substrate-impregnated fabric for deployable high-gain antenna for small satellites. Constellations of small satellites offer worldwide coverage of wireless communication and earth observation; high-gain antennas are ...
Masato Machida   +3 more
doaj   +2 more sources

Broadband Single-layer E-Patch Reflectarray [PDF]

open access: yesRadioengineering, 2017
E-shaped patch resonator is proposed for designing a novel broadband linearly polarized reflectarray for the first time. The element is made up of a shorted E-shaped patch with a polystyrene foam placed beneath it, and no dielectric substrate is needed ...
S. R. Lee, E. H. Lim, F. L. Lo
doaj   +2 more sources

Open Resonator System for Reflectarray Elements Characterization [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2012
An open resonator system is proposed in this work to study the phase behavior of reflectarrays cells. The characterization of the single reflectarray element is performed by assuming a Gaussian plane wave normally incident on an infinite periodic array ...
G. Di Massa, S. Costanzo, O. H. Moreno
doaj   +2 more sources

Broadband single-layer reflectarray antenna loaded with meander-delay-lines for X-band applications

open access: yesAlexandria Engineering Journal, 2021
In this work, delay-lines loaded broadband reflectarray antenna is proposed for X-band applications. The array cells contain slotted square patch and quad meander delay-lines.
Tayyab Shabbir   +4 more
doaj   +1 more source

Proof-of-Concept on Misalignment Compensation for 5.8-GHz-Band Reflectarray Antennas by Varactor Diodes

open access: yesIEEE Access, 2021
Membrane reflectarray antennas with flexible support structures realize low weight and low stowage volume. However, deformation of the reflectarray membrane generally degrades antenna gain. We propose electrical misalignment compensation for 5.8-GHz-band
Keisuke Omoto   +2 more
doaj   +1 more source

Analysis and Elimination of Unwanted Resonances for Wideband Reflectarray Antenna Design at Sub-Millimeter Waves

open access: yesIEEE Access, 2020
In this study, unwanted additional resonances are analyzed and a method is developed to eliminate them for wideband offset dual reflectarray antenna at sub-millimeter waves.
Eun-Cheol Choi, Sangwook Nam
doaj   +1 more source

Terahertz Beam Steering Using a MEMS-Based Reflectarray Configured by a Genetic Algorithm

open access: yesIEEE Access, 2022
With the increase in potential uses of terahertz technology, the need for terahertz transceivers with application-oriented adaptive radiation patterns has emerged.
Xuan Liu   +10 more
doaj   +1 more source

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