Results 1 to 10 of about 91,608 (298)

Evaluation of 8-Channel Radiative Antenna Arrays for Human Head Imaging at 10.5 Tesla [PDF]

open access: yesSensors, 2021
For human head magnetic resonance imaging at 10.5 tesla (T), we built an 8-channel transceiver dipole antenna array and evaluated the influence of coaxial feed cables.
Myung Kyun Woo   +9 more
doaj   +2 more sources

Decoupling of Dual-Polarized Antenna Arrays Using Non-Resonant Metasurface [PDF]

open access: yesSensors, 2022
A non-resonant metasurface (NRMS) concept is reported in this paper to improve the isolation of dual-polarized and wideband large-scale antenna arrays. By properly designing the NRMS, it can perform stable negative permeability and positive permittivity ...
Shengyuan Luo   +4 more
doaj   +2 more sources

Flexible Phased Antenna Arrays: A Review [PDF]

open access: yesSensors
Flexibility in phased antenna arrays open the world of new applications. Such arrays can conform to different shapes while ensuring performance in harsh conditions.
Waleef Ullah Usmani   +2 more
doaj   +2 more sources

Effect of polarized signals on the performance of adaptive antenna arrays [PDF]

open access: yesArchives of Electrical Engineering, 2020
The polarized electromagnetic waves have significant impact on the performance of adaptive antenna arrays. In this paper we investigate the effect of polarized desired and undesired signals on the performance of electronically steered beam adaptive ...
Amin H. Al Ka'bi
doaj   +1 more source

Sub‐array level structural compensation method for radiating and scattering performance of array antennas

open access: yesIET Microwaves, Antennas & Propagation, 2023
The detection and stealth abilities of array antennas depend mainly on the antennas' radiating and scattering performance, respectively. However, the operating environmental loads and assembly lead to serious structural errors, including deformation and ...
Yan Wang   +10 more
doaj   +1 more source

Study of the accuracy characteristics of a GNSS receiver with an antenna array

open access: yesКосмические аппараты и технологии, 2023
The article presents the results of experimental studies of the accuracy of measuring navigation parameters by a receiver of global navigation satellite systems (GNSS receiver) equipped with an antenna array.
V. N. Tyapkin   +2 more
doaj   +1 more source

Design of a dual‐CP gap waveguide fed aperture array antenna

open access: yesIET Microwaves, Antennas & Propagation, 2023
A slot array antenna with dual‐circular polarisation (CP) is presented in this paper. To overcome the fabrication and loss challenges in mm‐wave frequencies, the gap waveguide technique is utilised. The right and left hand circular polarisation (RHCP and
Davoud Zarifi   +2 more
doaj   +1 more source

3D metal printed slot antenna array with high gain and enhanced bandwidth using triple‐mode sine corrugated cavity resonator

open access: yesIET Microwaves, Antennas & Propagation, 2023
This letter proposes a class of sine corrugated cavity resonators (SCCR). The SCCR can present slow‐wave features and provide dual‐mode (TE104 and TE105) wideband responses with reasonable sine period and depth. Based on it, a compact high‐gain bandwidth‐
Jiayu Rao   +4 more
doaj   +1 more source

A Compact Aperture-Sharing Sub-6 GHz/Millimeter-Wave Dual-Band Antenna

open access: yesSensors, 2023
In this article, a microwave (MW)/millimeter wave (MMW) aperture-sharing antenna is proposed. The antenna is constructed using two orthogonal columns of grounded vias from a 3.5 GHz slot-loaded half-mode substrate-integrated waveguide (HMSIW) antenna ...
Qinghu Zhang   +3 more
doaj   +1 more source

Theoretical analysis and comparison of OAM waves generated by three kinds of antenna array

open access: yesDigital Communications and Networks, 2021
Antenna array is one of the methods which can generate Orbital Angular Momentum (OAM) waves. However, OAM waves generated by different antenna arrays have different characteristics of Electric-field (E-field) components’ distribution and radiation ...
Dandan Liu   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy