Zobrazeno 1 - 10
of 17 767
pro vyhledávání: '"Dual-Band"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract A highly efficient and multi-functional butterfly polarization conversion metasurface is proposed for the Ku-Ka frequency range, designed to reduce the radar cross-section. The suggested converter enables dual frequency bands linear-to-cross
Externí odkaz:
https://doaj.org/article/6ce2d78a009e45919c01387142a3a144
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract An antenna array having a size of 45 $$\:\times\:$$ 40 cm2 (5.7 $$\:\times\:$$ 5 $$\:{\lambda\:}_{0}$$ 2) and consisting of four pairs of printed U-shaped dipoles positioned above a metal reflector, for 5G Sub-6 GHz base station applications
Externí odkaz:
https://doaj.org/article/0a5209dfd80a435faa1c2344c3a52c8b
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract This paper presents a novel filter-based analysis for the conventional rectangular patch antenna (RPA) using the Composite Right/Left-Handed Transmission Line (CRLH-TL) theory. We introduce two circuit models for RPA, described by lumped com
Externí odkaz:
https://doaj.org/article/fb3a804270fe4946b60d30e14af0a3ec
Publikováno v:
Cailiao gongcheng, Vol 52, Iss 10, Pp 189-196 (2024)
To meet the design requirements of multi-band and miniaturization antennas in mobile communication system， combined with the structural advantages of metamaterials， a 2D/3D tunable dual-band paper-based metamaterial antenna was designed based on
Externí odkaz:
https://doaj.org/article/293936020d504b998a08cb046755b55e
Publikováno v:
Alexandria Engineering Journal, Vol 104, Iss , Pp 235-245 (2024)
This paper presents a single-fed Ku/Ka dual-band aperture-shared planar antenna array designed for satellite communication. The need to enhance data transmission speeds has driven the exploration of higher frequency bands, such as the Ku-band and Ka-
Externí odkaz:
https://doaj.org/article/74a451da27f8409e88d508601631d789
Publikováno v:
Известия высших учебных заведений России: Радиоэлектроника, Vol 27, Iss 4, Pp 38-51 (2024)
Introduction. Due to the depletion of the frequency resource in the Ku frequency range, satellite communication systems are being actively developed in higher frequency ranges, i.e., Ka and Q. Satellite communication earth stations in these ranges ar
Externí odkaz:
https://doaj.org/article/7f12c8d94fc64be894af0ed60befe3f5
Publikováno v:
Electromagnetic Science, Vol 2, Iss 3, Pp 1-7 (2024)
A compact dual-band quasi-elliptic filter with high selectivity is developed and investigated in this communication. It employs two hybrid-structure substrate integrated waveguide (SIW) triplets, which show completely inverse transfer responses under
Externí odkaz:
https://doaj.org/article/e4b02a6a3f76486b92dffd6d8e06fac0
Autor:
Shahid Iqbal, Ahsan Noor, Naeem Ullah, Yasir Saifullah, Shehzad Ahmed, Muhammad Shemyal Nisar, Sai-Wai Wong
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract Independent control of electromagnetic (EM) waves by metasurfaces for multiple tasks are highly desired and is the recent hot topic of research. In this work we contribute a polarization insensitive frequency multiplexed 2-bit coding metasur
Externí odkaz:
https://doaj.org/article/be6c06d04a48445f877963c618b74ad2
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract In this study, a high-isolation dual-band (28/38 GHz) multiple-input–multiple-output (MIMO) antenna for 5G millimeter-wave indoor applications is presented. The antenna consists of two interconnected patches. The primary patch is connected
Externí odkaz:
https://doaj.org/article/6a0c40e3e9384adabba09ded19a7355c
Publikováno v:
Известия высших учебных заведений России: Радиоэлектроника, Vol 27, Iss 3, Pp 30-41 (2024)
Introduction. The topic of implementing a dual-band mode of operation for director dipole antennas is represented by a wide range of works, almost all of which are dedicated to studying the properties of a classic dipole. However, the issue of end ex
Externí odkaz:
https://doaj.org/article/24d86a0646754f579afd2ef7ac034884