Zobrazeno 1 - 10
of 640
pro vyhledávání: '"Salam K"'
Publikováno v:
Magnetism, Vol 4, Iss 1, Pp 73-90 (2024)
This article delves into the capabilities of 3D-printed millimeter-wave (mmWave) layered cylindrical dielectric resonator antennas (CDRAs). The proposed design yielded promising results, boasting a remarkable 53% impedance bandwidth spanning the freq
Externí odkaz:
https://doaj.org/article/5fdbeecd74d64685b74a3f73515a301c
Publikováno v:
Sensors, Vol 24, Iss 12, p 3906 (2024)
This paper introduces an innovative and cost-effective approach for developing a millimeter-wave (mmWave) frequency-reconfigurable dielectric resonator antenna (DRA), which has not been reported before. The antenna integrates two rectangular DRA elem
Externí odkaz:
https://doaj.org/article/7c5bec4442564e29ab83cb6b74d236e7
Publikováno v:
Chemical Physics Impact, Vol 7, Iss , Pp 100364- (2023)
Tuning the electronic properties of engineered graphene quantum dots (GQDs) is used to produce nanoelectronic devices, which are important in many applications. Chemical doping is applied to give GQDs controllable electronic properties. As a model fo
Externí odkaz:
https://doaj.org/article/579a80751d734a3cada9fb3a64dfd070
Publikováno v:
Chemical Physics Impact, Vol 7, Iss , Pp 100305- (2023)
Quantum dots are interesting systems because they can be tuned electronically. We used graphene quantum dots (GQDs) known as the formula C24H12 as a model for studying the effect of zinc oxide (ZnO) dimers on the structural and electronic properties
Externí odkaz:
https://doaj.org/article/67590d489ff742e4a081a3c7a835e722
Publikováno v:
IEEE Access, Vol 11, Pp 122016-122028 (2023)
This paper proposes a cost-effective millimeter-wave (mmWave) phased array antenna incorporating circular polarization (CP) capabilities for beam scanning applications. An initial evaluation involves the examination of an open single-loop antenna. Su
Externí odkaz:
https://doaj.org/article/93272abe4b2e4b9aa584c1943e6afe3c
Publikováno v:
Micromachines, Vol 15, Iss 1, p 142 (2024)
A novel quasi-twisted miniaturized wideband branch line coupler (BLC) is proposed. The design is based on bisecting the conventional microstrip line BLC transversely and folding bisected sections on double-layered substrates with a common ground plan
Externí odkaz:
https://doaj.org/article/51edd1460b4d4501a5ec53d178482985
Autor:
Rawad Asfour, Salam K. Khamas, Edward A. Ball, Jo Shien Ng, Guanwei Huang, Rozenn Allanic, Denis Le Berre, Cédric Quendo, Aude Leuliet, Thomas Merlet
Publikováno v:
Sensors, Vol 24, Iss 2, p 321 (2024)
This paper presents a comprehensive assessment of the performance of on-chip circularly polarized (CP) circular loop antennas that have been designed and fabricated to operate in the Q/V frequency band. The proposed antenna design incorporates two co
Externí odkaz:
https://doaj.org/article/0283b136a6e14eeaabe880aabd8ed82a
Publikováno v:
Sensors, Vol 23, Iss 24, p 9628 (2023)
A singly fed reconfigurable circular loop antenna is proposed for millimeter-wave (mmWave) communication systems. This antenna’s distinctive feature lies in its capacity to adjust both polarization and bandwidth characteristics, a capability made p
Externí odkaz:
https://doaj.org/article/1f0b98a5f295415e94018ebf43ede6e4
Publikováno v:
Iraqi Journal of Chemical and Petroleum Engineering, Vol 24, Iss 2 (2023)
The frequent and widespread use of medicines and personal care products, particularly in the residential environment, tends to raise concerns about environmental and human health impacts. On the other hand, carbon dioxide accumulation in the atmosphe
Externí odkaz:
https://doaj.org/article/32ed817acf494912b72bcab25a2fc50d
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract Batch adsorption treatment using Iraqi bentonite as a natural adsorbent was adopted in this study to decontaminate actual 137Cs radioactive wastewater from the Al-Tuwaitha Nuclear Research Center, located south of Baghdad. The bentonite char
Externí odkaz:
https://doaj.org/article/7dd80e608e6d4634a3882ec9673035c9