Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Xavier Begaud"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract Metasurfaces are artificial materials that can provide properties not readily available in nature for the interaction with acoustic, elastodynamic, or electromagnetic waves. In Electromagnetics, metasurfaces allow particular functionalities
Externí odkaz:
https://doaj.org/article/73a2f1f433bd45aa9218083328cba6c8
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 16, Iss 5, Pp 283-294 (2022)
Abstract The simple planar shape and wideband input impedance of the bow‐tie antenna make it suitable to diverse wideband applications. However, the radiation pattern of this kind of antenna is not stable and the gain in the broadside direction det
Externí odkaz:
https://doaj.org/article/128193f54ee1409796332854abd5978e
Publikováno v:
Sensors, Vol 23, Iss 4, p 1920 (2023)
When a wideband antenna is backed by an artificial magnetic conductor (AMC) reflector, the bandwidth is reduced. With the optimization of the shape of the AMC it is possible to exhibit multiband behavior, but the problem becomes complex if the bands
Externí odkaz:
https://doaj.org/article/5cf21e10000a4b91928925ecb80ffe7c
Publikováno v:
Applied Sciences, Vol 9, Iss 16, p 3425 (2019)
This article presents the design, realization and measurement of lightweight absorbing material for space applications. The electromagnetic absorber, operating on the [2 GHz, 2.3 GHz] frequency band, is designed for oblique incidence ranging from 35
Externí odkaz:
https://doaj.org/article/acec11b895fc4a27842286d9dec6fcb5
Publikováno v:
Materials, Vol 11, Iss 10, p 2045 (2018)
In order to extend the performance of radar absorbing materials, it is necessary to design new structures with wideband properties and large angles of incidence which are also as thin as possible. The objective of this work, realized within the frame
Externí odkaz:
https://doaj.org/article/cda29eac21134fd28a967e07a7676a6f
Publikováno v:
International Journal of Antennas and Propagation, Vol 2015 (2015)
A wideband dual-polarized coplanar waveguide (CPW) fed antenna integrating a wide stop-band filter is presented. The designed filter is based on a nonuniform defected ground structure (DGS) in order to obtain a wide stop-band and a compact size. This
Externí odkaz:
https://doaj.org/article/246ea4796c7a4bbaa334e6425485d02b
Publikováno v:
International Journal of Antennas and Propagation, Vol 2012 (2012)
A system of two dual-band dual-polarized antennas is proposed. It operates in two bands, 700 to 862 MHz and 2.5 to 2.69 GHz, thereby making it suitable for LTE applications. The design is composed of two compact orthogonal monopoles printed close to
Externí odkaz:
https://doaj.org/article/9f325336768b48e0a1a9e3a9da208bca
Publikováno v:
HAL
The sixth-generation wireless communication research activities were launched worldwide. A tendency of some researchers to use the sub-terahertz frequency band for 6G is noticed. This frequency band is selected as a candidate for 6G due to its remark
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0009a1c647848159c5e386342a7475ae
Publikováno v:
HAL
This work presents the design and realization of four linear arrays of microstrip rectangular patch antennas. This linear array is one of the elements of a passive radar using signals from 4G base stations for UAV detection. The arrays have been vali
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3d504d4a00e4e30de1d13386c4410575
https://hal.telecom-paris.fr/hal-03679083
https://hal.telecom-paris.fr/hal-03679083