Results 101 to 110 of about 5,646 (202)

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

Journal 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

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

International 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, Ali Khajeh, Ali Yahaghi, Keyhan Hosseini   +3 more
doaj  

94 GHz Beam Scanning Dual-Reflector Antenna with a Sub-Reflectarray [PDF]

, 2008
A Cassegrain dual-reflector antenna which employs a flat reflectarray subreflector was analysed in a recent paper [1]. It was shown that the antenna beam can be scanned by introducing an appropriate progressive phase distribution across the reflectarray ...
Arrebola, Manuel, Cahill, R., Encinar Garcinuño, José Antonio, Fusco, V., Gamble, H., Grant, N., Hu, Wenfei   +6 more
core  

A Printed Reflectarray with Annular Patches [PDF]

, 2007
Dassano, Gianluca, Orefice, Mario, Pirinoli, Paola, Vietti Colome, G.C.   +3 more
core   +1 more source

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

IEEE 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, Takashi Tomura, Hiraku Sakamoto, Tomohiro Fukao   +3 more
doaj   +1 more source

Analysis and design of terahertz reflectarrays based on graphene cell clusters. [PDF]

Sci Rep, 2022
Hosseini P, Oraizi H.
europepmc   +1 more source

A Dual- Linearly polarized Ku/K Band Reflectarray for Broadcast and Fixed Satellite Services

Journal of High-Frequency Communication Technologies
A novel single layer, dual polarized dual band reflectarray is constructed by implementing independent control over each band. The downlink element in the Ku-band employs a vertical slot embedded with semi-circular rings, featuring 841 elements, and is ...
Vidhyashree S, Kavitha Narayanasamy
doaj   +1 more source

The Evolutions of Reflectarray Antennas for Small Satellites: Navigating to Design, Fabrication, and Performance Techniques

IEEE Access
Classical antennas in small satellites such as reflectors and phased arrays have encountered significant challenges, including restricted beam steering capabilities and complex deployment mechanisms.
Jasim Uddin, Harvinder Sing Nagi, Benjamin Falkner, Reza Akhavan, Ginu Rajan, Jon Platts, Chaminda T. E. R. Hewage, Leshan Uggalla   +7 more
doaj   +1 more source

Reflectarray Antennas

International Journal of Computer Applications, 2014
Amit A. Deshmukh, Ameya A. Kadam, Ami A. Desai, Kshitij Lele   +3 more
openaire   +1 more source

Tapered high-gain Fabry-Perot cavity antenna with high sidelobe suppression for 5G industry. [PDF]

Sci Rep, 2023
Hussain M, Lee KG, Kim D.
europepmc   +1 more source