Zobrazeno 1 - 10
of 523
pro vyhledávání: '"Multibeam antenna"'
Publikováno v:
IEEE Access, Vol 12, Pp 105178-105186 (2024)
This paper presents the design of a novel multi-beam Luneburg lens antenna with specific dielectric structure and proposes a new solution for downsizing planar lens antennas. The quasi-conformal transformation optics (QCTO) principle is applied to ac
Externí odkaz:
https://doaj.org/article/4d10fc3f4840428ca92f43d9d3996637
Publikováno v:
IEEE Access, Vol 12, Pp 10497-10511 (2024)
Multibeam base station antennas are introduced for 5G and 6G mobile communication systems. Considering higher frequency bands such as millimeter waves for 5G and terahertz for 6G, dielectric lens antennas become promising candidates due to their simp
Externí odkaz:
https://doaj.org/article/c8c07005f68b4dceb3fa5e66cbe255bd
Publikováno v:
IEEE Access, Vol 11, Pp 41609-41617 (2023)
This paper presents a realization of a D- band multibeam lens antenna based on 3D printing. It extends all-metal Luneburg lens to terahertz band for the first time, and demonstrates the application potential of 3D-printed antenna in the associated co
Externí odkaz:
https://doaj.org/article/118312c04b9043d08460fc1f4ab807f5
Publikováno v:
Micromachines, Vol 14, Iss 8, p 1631 (2023)
In this paper, we proposed a multibeam switching antenna based on a low-cost reconfigurable hybrid metasurface applied for beamforming systems. The antenna consists of two parts: a microstrip feed antenna and a transmission hybrid metasurface. The la
Externí odkaz:
https://doaj.org/article/e27c9e3033ab40ccace87dea8da29c42
Publikováno v:
Физика волновых процессов и радиотехнические системы, Vol 24, Iss 1, Pp 48-57 (2021)
The use of a printed Luneberg lens is promising for powering ultra-wideband phased array antennas with full-azimuth scanning. This article describes in detail the model for constructing a flat Luneberg lens based on a printed circuit with curved cond
Externí odkaz:
https://doaj.org/article/ff5010e4886f4e59b77f118a8fc400f0
Akademický článek
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Publikováno v:
IEEE Access, Vol 9, Pp 17530-17543 (2021)
A thorough analysis of the performance of planar arrays with a regular periodic lattice is carried out and applied to massive multiple-input-multiple-output (MIMO) systems operating within 5G NR n257 and n258 frequency band. It is shown that, among d
Externí odkaz:
https://doaj.org/article/9684e8be7c8d4d7c8a97737ea1cd2b66
Dual-Polarized Two-Dimensional Multibeam Antenna Array With Hybrid Beamforming and its Planarization
Publikováno v:
IEEE Access, Vol 9, Pp 54951-54961 (2021)
A feeding network crossing method is proposed to form an N $\times $ N dual-polarized two-dimensional multibeam antenna array (2D-MBAA) with analog-digital hybrid beamforming, which solves the problem of needing additional connection structure betwee
Externí odkaz:
https://doaj.org/article/e3ffd6d3196e451793013af3cd3876ac
Publikováno v:
IEEE Journal of Microwaves, Vol 1, Iss 4, Pp 879-901 (2021)
Orthogonality in multibeam antennas is revisited. The difference between orthogonal beamforming and zero-forced beamforming is highlighted. The intriguing relation between orthogonality, reciprocity and losses is recapitulated. Different approaches o
Externí odkaz:
https://doaj.org/article/c87be525a1db484081b9ece9665c3f02
Akademický článek
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