Results 121 to 130 of about 61,537 (311)

Dual-Band Dielectric Resonator Antenna for C and X Band Application

open access: yesInternational Journal of Antennas and Propagation, 2012
The proposed technique combines a slot antenna and a dielectric resonator antenna (DRA) to effectively design a dual band dielectric resonant antenna without compromising miniaturization or its efficiency.
Deepak Batra   +2 more
doaj   +1 more source

Research study of some RAM antennas Final report, 18 Nov. 1964 - 18 Jun. 1965 [PDF]

open access: yes
Input impedance and radiation pattern determinations for cylindrical gap, waveguide excited and circular waveguide slot antenna ...
Butler, L.   +5 more
core   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

open access: yesAdvanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang   +9 more
wiley   +1 more source

Dual-polarized 8-port sub 6 GHz 5G MIMO diamond-ring slot antenna for smart phone and portable wireless applications. [PDF]

open access: yesPLoS One, 2023
Fawad Y   +7 more
europepmc   +1 more source

Stability of Perovskite Indoor Photovoltaics: A Focused Review and a Call for Standardized Stability Reporting

open access: yesAdvanced Energy Materials, EarlyView.
While perovskite solar cells have been widely studied, including their stability, perovskite indoor photovoltaics (IPVs) have only recently emerged. Nevertheless, more studies are appearing in the literature. The systematic stability study of IPVs is crucial, particularly given the inconsistencies in reported methodologies and results, which call for ...
Ivy Mawusi Asuo   +7 more
wiley   +1 more source

Effect of 433 MHz double-slot microwave antennas for double-zone ablation in ex vivo swine liver experiment.

open access: yesPLoS ONE
PurposeTo evaluate the effects of axial length and slot-to-slot distance of double-slot microwave antenna (DSMA) with frequency of 433 MHz on the size and shape of ablation zones created under different input microwave powers.Materials and methodsThe ...
Xiaofei Jin   +7 more
doaj   +1 more source

A Novel Compact CP Antenna with Wide Axial Ratio Bandwidth for Worldwide UHF RFID Handheld Reader

open access: yesInternational Journal of Antennas and Propagation, 2019
This study presents a novel compact circularly polarized antenna for universal ultrahigh-frequency (UHF) radio-frequency identification (RFID) handheld reader applications.
Waleed Abdelrahim Ahmed, Feng Quanyuan
doaj   +1 more source

Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories

open access: yesAdvanced Energy Materials, EarlyView.
In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen   +4 more
wiley   +1 more source

Microwave Imaging Approach for Breast Cancer Detection Using a Tapered Slot Antenna Loaded with Parasitic Components. [PDF]

open access: yesMaterials (Basel), 2023
Zerrad FE   +7 more
europepmc   +1 more source

Нейронная модель широкополосной профилированной щелевой антенны [PDF]

open access: yes, 2014
У роботі наведено аналіз топології і параметрів нейронної мережі для моделювання коефіцієнта відбиття і коефіцієнта підсилення широкосмугової профільованої щілинної антени.
Mazurkevych, H.M.   +5 more
core  

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