Results 91 to 100 of about 4,264 (215)

A Beam-Steering Reflectarray Antenna with Arbitrary Linear-Polarization Reconfiguration [PDF]

open access: yes, 2023
This work presents a beam-steering reflectarray antenna capable of achieving arbitrary linear polarization (LP) reconfiguration. It utilizes a dual-circular polarization (CP) reconfigurable reflectarray, along with an LP feed horn, to synthesize a LP ...
Xu, Shenheng   +4 more
core  

A Reconfigurable Reflectarray Structure Based on Metamaterial Unit Cells for 5G Applications

open access: yesJournal of Studies in Science and Engineering
This article presents the design and analysis of the reconfigurable reflectarray structure based on metamaterials for Sub-6 GHz 5G applications. The proposed reflectarray structure is printed on a 1 mm-thick FR4 dielectric substrate with a total size of ...
Reham Mahood Yaseen, Ali Khalid Jassim
doaj   +1 more source

A Printed Reflectarray with Annular Patches [PDF]

open access: yes, 2007
Vietti Colome, G.C.   +8 more
core   +1 more source

Large Deployable Reflectarray Antenna [PDF]

open access: yes, 2006
A report discusses a 7-meter-diameter reflectarray antenna that has been conceived in a continuing effort to develop large reflectarray antennas to be deployed in outer space.
Lou, Michael, Huang, John, Fang, Houfei
core  

Low cost beam switchable reflectarray antenna

open access: yes, 2012
This paper presents a methodology for designing low cost beam switchable reflectarray antenna. An electronically beam steering antenna, which has a small section, is used to feed a printed reflectarray.
Tian-Hong Loh   +5 more
core   +1 more source

Inverse Design of a Wide-Angle Wideband Programmable THz Reflectarray Through Generative Adversarial Networks [PDF]

open access: yesInternational Journal of Information and Communication Technology Research
A reflectarray optimized through a Generative Adversarial Network (GAN) is demonstrated. This design focuses on the impact of the top layer on the reflection phase and utilizes the correlation between phase distribution and the direction of the reflected
Pezhman Yousefi   +3 more
doaj  

Analysis of a Periodic Reflectarray by Using FEKO

open access: yes, 2013
In this paper the use of a commercial software is proposed to generate the scattering matrix database required to analyze and, possibly, synthesize a reflectarray.
LISENO, ANGELO   +4 more
core  

Sub-reflectarray performances for reconfigurable coverages

open access: yes, 2012
International audienceA reconfigurable sub-reflectarray (RSRA) is studied to perform a realistic telecommunication scenario in Ku-band. The reflectarray panel is based on a proven technology with PIN diodes developed by Thales Airborne Systems and French
Koleck, Thierry, Menudier, Cyrille
core   +1 more source

Broadband microstrip reflectarray formed by double circular ring elements

open access: yes, 2008
A single-layer microstrip reflectarray antenna composed of double-circular rings elements of variable sizes is presented. Compared to single microstrip patches or rings of rectangular or circular shape, the double circular ring elements offer much a ...
Sayidmarie, Khalil Hassan   +1 more
core  

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   +1 more source

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