Optically transparent wideband CVD graphene-based microwave antennas
Sign Up to like & getrecommendations! Published in 2018 at "Applied Physics Letters"
DOI: 10.1063/1.5037409
Abstract: In this paper, we numerically and experimentally demonstrate that few-layer Chemical Vapour Deposition graphene can be employed for the fabrication of fully optical transparent antennas for microwave applications. We show that planar graphene-based antennas, having… read more here.
Keywords: optically transparent; graphene based; graphene; radiation patterns ... See more keywords
Hybrid Microwave-Radiation Patterns for High-Fidelity Quantum Gates with Trapped Ions
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review Applied"
DOI: 10.1103/physrevapplied.13.024068
Abstract: We present a method that combines continuous and pulsed microwave radiation patterns to achieve robust interactions among hyperfine trapped ions placed in a magnetic field gradient. More specifically, our scheme displays continuous microwave drivings with… read more here.
Keywords: high fidelity; microwave radiation; trapped ions; radiation patterns ... See more keywords
Sensing and Reconfigurable Reflection of Electromagnetic Waves From a Metasurface With Sparse Sensing Elements
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3206831
Abstract: Reconfigurable reflective surfaces can form prescribed radiation patterns given a known incident signal, a capability with widespread use for beamforming in radar and imaging systems or for altering the propagation environment in wireless communication networks.… read more here.
Keywords: sensing reconfigurable; reconfigurable reflection; reflection; reflection electromagnetic ... See more keywords
Reconfigurable Antenna With Uni- and Bidirectional Radiation Patterns Based on Metasurface and Fresnel Zone Plate Lens
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2024.3387922
Abstract: A reconfigurable antenna with unidirectional and bidirectional radiation patterns is proposed in this letter. An open-ended waveguide (OEWG) antenna serves as the feeding source to excite the Fresnel zone plate lens above it. Further, an… read more here.
Keywords: fresnel zone; bidirectional radiation; radiation; antenna ... See more keywords
Tunable Bandpass-to-Bandstop Quasi-Yagi–Uda Antenna With Sum and Difference Radiation Patterns
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2019.2891451
Abstract: A design of the double-element E-plane quasi-Yagi–Uda antenna is proposed offering two different radiation patterns and reconfigurable bandpass-to-bandstop frequency-tunable responses. The double-element antenna covers a wide frequency range that is exploited for the realization of… read more here.
Keywords: radiation; radiation patterns; antenna; bandpass bandstop ... See more keywords
Reducing Hand Effect on Mobile Handset Antennas by Shaping Radiation Patterns
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2020.3048535
Abstract: User interaction can significantly degrade handset antenna performances through frequency detuning and absorption. In this article, the relationships between the hand effects and the radiation patterns of the antennas are investigated using characteristic mode theory.… read more here.
Keywords: radiation; handset antenna; radiation patterns; hand ... See more keywords
A Compact Singly Fed Dielectric Resonator Antenna With Flat-Top Radiation Patterns
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2023.3343873
Abstract: Flat-top radiation patterns are desired in various scenarios to reduce signal interference from nearby coverage sections. Numerous flat-topped antennas have been proposed, but the existing ones usually have complex feeding networks, bulky sizes, or high… read more here.
Keywords: flat top; compact singly; radiation patterns; flat topped ... See more keywords
Steerable plasmonic nanoantennas: active steering of radiation patterns using phase change materials.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.031567
Abstract: In this article, we describe active steering of radiation patterns by complex nanoantenna structures - called steerable nanoantennas (SNs) - formed by combining multiple Yagi-Uda nanoantennas and thin films of a phase change material (VO2).… read more here.
Keywords: phase; active steering; radiation patterns; steering radiation ... See more keywords
An efficient synthesizing method for super-massive sparse phased array in non-terrestrial network applications
Sign Up to like & getrecommendations! Published in 2025 at "China Communications"
DOI: 10.23919/jcc.fa.2024-0164.202510
Abstract: In this paper, a method for designing supermassive sparse phased arrays (SMSPAs) known as the unitary modified matrix enhancement and matrix pencil (UMMEMP) method is proposed. In this method, an eigenvalue pairing method, which is… read more here.
Keywords: method; sparse phased; efficient synthesizing; array ... See more keywords