Results 21 to 30 of about 9,058 (257)

3D-printed millimetre wave dielectric resonator reflectarray

open access: yes, 2017
Reflectarray antennas have attracted extensive attention due to their low loss, high gain, compact volume and their excellent abilities to control the radiated beam.
Shiyu Zhang (1222824)
core   +6 more sources

A 2 bit Circularly Polarized Reconfigurable Reflectarray Using p-i-n-Diode-Tuned Crossed-Bowtie Patch Elements

open access: yesIEEE Transactions on Antennas and Propagation, 2023
A wideband, wide-scanning-angle, and high-efficiency 2 bit circularly polarized (CP) reconfigurable reflectarray (RRA) is presented for 2-D dynamic beam control.
Fan Wu   +6 more
semanticscholar   +1 more source

An Efficiency-Improved Tightly Coupled Dipole Reflectarray Antenna Using Variant-Coupling-Capacitance Method

open access: yesIEEE Access, 2020
In this paper, a tightly coupled dipole reflectarray antenna as well as a variant-coupling-capacitance method to improve the antenna aperture efficiency is presented.
Jiayou Wang   +3 more
doaj   +1 more source

Dual-Band Shared Aperture Reflectarray and Patch Antenna Array for S- and Ka-Bands

open access: yesIEEE Transactions on Antennas and Propagation, 2022
In this communication, a dual-band shared aperture antenna is presented. The proposed antenna achieves dual-band operation by housing both a low-frequency patch antenna array and a high-frequency reflectarray in the same aperture area.
D. E. Serup, G. Pedersen, Shuai Zhang
semanticscholar   +1 more source

Reflectarray pattern optimization for advanced wireless communications [PDF]

open access: yes, 2019
A framework for the design and optimization of large dual-linear polarized, shaped-beam reflectarrays for advanced wireless communications is presented. The methodology is based on the generalized intersection approach (IA) algorithm for both phase-only ...
Marcos Rodríguez Pino   +5 more
core   +1 more source

Full-Metal Reflectarray for Space Applications [PDF]

open access: yes, 2022
This paper proposes a new full-metal unit cell for reflectarray antenna for space applications. It can be scaled to operate from X-band to Ka-band with the same manufacturing process.
Mangenot, Louis   +4 more
core   +1 more source

An Active Reconfigurable Reflectarray Antenna [PDF]

open access: yes, 2010
This thesis focuses on a type of antenna known as the reflectarray antenna. In particular, it looks at the design of an active reconfigurable reflectarray antenna, which has not received much attention in the reflectarray community.
Kishor, Krishna
core   +2 more sources

Enhanced Efficiency and Reduced Side Lobe Level Convex Conformal Reflectarray

open access: yesApplied Sciences, 2021
In this work, the design of a convex conformal reflectarray (CRA), suitable to be used for high gain on board antenna in mobile communication systems, is presented.
Michele Beccaria   +7 more
doaj   +1 more source

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

Transmitarray and Reflectarray Antennas Based on a Magnetoelectric Dipole Antenna

open access: yesElectromagnetic Science, 2023
— This paper presents a review of transmitarray (TA) and reflectarray (RA) antennas based on the magnetoelectric (ME) dipole antenna structure. First, the basic operating principles of ME dipole, TA and RA antennas are introduced.
K. Luk, Bing-Jie Xiang
semanticscholar   +1 more source

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