Zobrazeno 1 - 10
of 4 000
pro vyhledávání: '"DRA"'
Autor:
Shahid Khan, Owais Khan, Syed Ahson Ali Shah, Bilal Tariq Malik, Neelam Gohar, Slawomir Koziel
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-21 (2024)
Abstract Ultra-wideband (UWB) technology is extensively used in indoor navigation, medical applications, and Internet of Things devices due to its low power consumption and resilience against multipath fading and losses. This paper examines a multipl
Externí odkaz:
https://doaj.org/article/b6d59a46edb7466781f9d7831d80dfeb
Autor:
Rasika Verma, Rohit Sharma
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 24, Iss 2, Pp 109-119 (2024)
This article presents a four-element directional multiple input multiple output (MIMO) rectangular dielectric resonator antenna (RDRA) equipped with strategically placed copper reflector plates to enhance port isolation. This design aims to achieve a
Externí odkaz:
https://doaj.org/article/a9c824030a864b58af1d16d12a4dc5af
Publikováno v:
IEEE Access, Vol 12, Pp 67837-67846 (2024)
A dielectric resonator antenna (DRA) is proposed for dual-band resonance for the mid-band (sub-6 GHz) and the high-band (millimeter-wave) 5G applications. The proposed composite DRA consists of an annular dielectric radiator concentrically integrated
Externí odkaz:
https://doaj.org/article/bb34dc0a2d8a48d5a4be2fb031c7fddc
Publikováno v:
Tehnički Vjesnik, Vol 31, Iss 3, Pp 864-869 (2024)
The paper introduces a fractal geometry utilizing an Octagonal Split Ring Resonator (SRR) hybrid DRA as its basis. The primary antenna consists of a conventional Octagonal patch, which is then scaled down by 0.5 in the first iteration and further by
Externí odkaz:
https://doaj.org/article/352b05609f4b4b4fbb501ef4f902bd1f
Autor:
Smita Dinakaramani
Publikováno v:
Gadjah Mada Journal of Professional Psychology, Vol 10, Iss 1, Pp 1-8 (2024)
Children of homeless people often experience various issues, one of which is eating behavior problems. Eating food from trash cans is a common eating behavior problem encountered. Therefore, an intervention is needed to reduce this issue. This case s
Externí odkaz:
https://doaj.org/article/9345700cf0e34846918d1d2c252de1cb
Publikováno v:
You-qi chuyun, Vol 43, Iss 4, Pp 464-472 (2024)
[Objective] Insufficient dissolution or shearing of drag reducing agents(DRAs) in product oil during pipeline transmission can have a significant impact on the oil's quality and may even result in quality accidents. [Methods] This study initially est
Externí odkaz:
https://doaj.org/article/1a7765c9d6d8402aa5b8a479533ef0f1
In The Sacred Landscape of Dra Abu el-Naga during the New Kingdom, Ángeles Jiménez-Higueras offers the reconstruction of the physical, religious and cultural landscape of Dra Abu el-Naga south and its conceptual development from the 18th to the 20t
Publikováno v:
Qalamuna, Vol 16, Iss 2 (2024)
Reading activity is an important learning skill for students to master. This research aims to determine the differences in reading comprehension abilities between students who take part in learning using the KWL model, CIRC model, and DRA model; diff
Externí odkaz:
https://doaj.org/article/bfb08b40de154045a0b00443654ebef5
Autor:
Reza Shamsaee Malfajani, Reza Damansabz, Sampada Bodkhe, Daniel Therriault, Jean-Jacques Laurin, Mohammad S. Sharawi
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 5, Pp 1351-1364 (2024)
Shared aperture antennas are versatile structures that can fulfill the demand for multi-band compact antennas in multi-standard emerging communication systems. However, the requirement of operation at widely separated frequency bands, such as sub-6-G
Externí odkaz:
https://doaj.org/article/d4fc31dc3db541caafa46d80d5077dad