Results 11 to 20 of about 16,345 (316)

Topological bulk solitons in a nonlinear photonic Chern insulator

open access: yesCommunications Physics, 2022
The combination of nonlinearity and topology has recently attracted significant attention in the field of optical physics. This work considers a photonic Chern insulator in the nonlinear regime and explores the properties of topological bulk solitons ...
Rujiang Li   +8 more
doaj   +1 more source

Double-Layer 45° Linearly Polarized Wideband and Highly Efficient Transmitarray Antenna

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
This letter presents a double-layer 45° linearly polarized (LP) wideband and highly efficient transmitarray antenna (TA). The proposed element is composed of two multi-resonant dipoles and four metal vias. The dipoles are placed on the diagonal of
Ming-Bo Cai   +4 more
doaj   +1 more source

VHF/UHF Wideband Slim Monopole Antenna with Distributed Matching Structures

open access: yesInternational Journal of Antennas and Propagation, 2022
This paper presents a wideband monopole antenna with distributed matching structures operating on VHF/UHF bands. The antenna consists of a slim rectangular metal strip with a T-type slot etched on the upper half, two rectangular slots on the lower half ...
Dongjie Qin, Baohua Sun
doaj   +1 more source

Decoupling of Isosceles Triangular Array by Loaded Parasitic Element in Combination With Decoupling and Matching Network

open access: yesIEEE Access, 2021
In this paper, decoupling of a compact isosceles triangular array is performed by a hybrid method consisting of loaded parasitic element (LPE) in combination with decoupling and matching network (DMN). By introducing a reactively loaded parasitic element
Chi Zhang   +4 more
doaj   +1 more source

A low‐profile dual‐mode antenna for unmanned aerial vehicles applications

open access: yesIET Microwaves, Antennas & Propagation, 2022
A low‐profile dual‐mode antenna is proposed in this paper. The antenna is composed of a semi‐rectangular‐annular (SRA) coaxial line with sleeve loading structures vertically mounted on the ground plane.
Rui Zhang, Baohua Sun, Xiaotian Huang
doaj   +1 more source

Broadband and Low-Profile Penta-Polarization Reconfigurable Metamaterial Antenna

open access: yesIEEE Access, 2020
In this paper, a penta-polarization reconfigurable antenna with mushroom-type metamaterial loading is proposed, which can operate in x-direction linear polarization (x-LP), y-LP, 45°-LP, left-hand circular polarization (LHCP) and right-hand ...
Peng Liu   +4 more
doaj   +1 more source

Design of Wideband Circularly Polarized Crossed-Dipole Antenna Using Parasitic Modified Patches

open access: yesIEEE Access, 2019
In this paper, a wideband circularly polarized (CP) crossed-dipole antenna is presented by using parasitic modified patches. Four polygonal metal patches are sequentially rotated around the crossed dipoles.
Zhipeng Zhao   +5 more
doaj   +1 more source

Wideband Low-Profile Luneburg Lens Based on a Glide-Symmetric Metasurface

open access: yesIEEE Access, 2020
This paper presents a two-dimensional low-profile Luneburg lens that is designed by using a glide-symmetric metasurface. The entire lens consists of two mirrored metal plates with periodic metal pins, and the pins on one plate are glided exactly a half ...
Fangfang Fan   +4 more
doaj   +1 more source

Wideband circularly polarised antenna array with isoflux pattern

open access: yesIET Microwaves, Antennas & Propagation, 2021
The authors present a wideband circularly polarised antenna array consisting of a 10‐element ellipse dipole antenna and a feed network. A metal pillar is vertically loaded at the end of each ellipse dipole arm to extend the current path, thereby reducing
Fanchao Zeng   +5 more
doaj   +1 more source

A Meta-Surface Decoupling Method for Two Linear Polarized Antenna Array in Sub-6 GHz Base Station Applications

open access: yesIEEE Access, 2019
In this paper, an extremely compact two-element linear polarized multiple-input-multiple-output (MIMO) antenna array with a metasurface superstrate is proposed.
Feng Liu   +4 more
doaj   +1 more source

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