Results 51 to 60 of about 222,814 (172)
Reconfigurable pixel antennas for communications
, 2023 The explosive growth of wireless communications has brought new requirements in terms of compactness, mobility and multi-functionality that pushes antenna research. In this context, recon gurable antennas have gained a lot of attention due to their ability to adjust dynamically their frequency and radiation properties, providing multiple ...
openaire +3 more sources
IEEE Access, 2019 A category of frequency reconfigurable antennas realized by rotating mechanically a metasurface mounted atop a source radiator has attracted growing attention.
Hongmei Li, Xuming Man, Jiaran Qi
doaj +1 more source
PATCH ANTENNA WITH RECONFIGURABLE POLARIZATION
Progress In Electromagnetics Research C, 2009 A reconfigurable patch antenna consisting of a square patch with two cross-shaped diagonal slots is presented. The proposed design approach is based on the use of two pairs of switches in order to obtain both frequency and polarization reconfigurability.
MONTI, GIUSEPPINA +2 more
openaire +2 more sources
A State-of-the-Art Review on 4D Printed Antennas and Other Adaptable Designs
IEEE AccessThis article offers a thorough review of the current state-of-the-art in four-dimensional (4D) printed antennas and possible adaptable designs. It provides a succinct examination of various categories of materials used in three-dimensional (3D) and 4D ...
Saul S. Carvalho +2 more
doaj +1 more source
Metamaterials and Their Application in the Performance Enhancement of Reconfigurable Antennas: A Review. [PDF]
Micromachines (Basel), 2023 Hussain M +5 more
europepmc +1 more source
International Journal of Antennas and PropagationThe rapid development of wireless technology has heightened the requirement for antenna performance. Traditional antennas, characterized by their static performance, are no longer sufficient to accommodate the dynamic requirements of modern wireless ...
Mingyue Zhang, Guangyu Xu, Renjing Gao
doaj +1 more source
Dual Band and Beam-Steering Antennas Using Reconfigurable Feed on Sierpinski Structure
International Journal of Antennas and Propagation, 2015 Fractal patch antennas based on the Sierpinski structure are studied in this paper. The antennas operate at dual bands (around 2 and 5 GHz) and are designed to steer the beam directions at around 5 GHz band (the first harmonic).
Seonghun Kang, Chang Won Jung
doaj +1 more source
Electronically Tunable Antenna Pair and Novel RF Front-End Architecture for Software-Defined Radios
EURASIP Journal on Advances in Signal Processing, 2005 This paper proposes a novel RF front-end architecture for software-defined radios (SDRs) based on an electronically tunable antenna pair controlled by an antenna control unit (ACU) consisting of field effect transistor (FET) switches and a field ...
Oh Sung-Hoon +5 more
doaj +1 more source
Bandwidth Performances of Reconfigurable Reflectarrays: State of Art and Future Challenges [PDF]
Radioengineering, 2018 Reconfigurable antennas allow to meet the increasing demands of modern RF communication systems for reconfiguration capabilities, such as beam-steering, multi-band operation, polarization flexibility or frequency agility.
S. Costanzo +4 more
doaj
IEEE AccessA new actuation technique is introduced for overcoming the complexity and radiation performance degradation issues of actuators-based reconfigurable antennas.
Syed Imran Hussain Shah +4 more
doaj +1 more source