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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

Fundamental issues in antenna design for microwave medical imaging applications [PDF]

open access: yes, 2010
This paper surveys the development of microwave medical imaging and the fundamental challenges associated with microwave antennas design for medical imaging applications. Different microwave antennas used in medical imaging applications such as monopoles,
Busawon, Krishna   +3 more
core   +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

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 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

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