Results 51 to 60 of about 76,234 (259)

Antenna Delay Calibration of UWB Nodes

IEEE Access, 2021
Impulse-radio ultra-wideband (IR-UWB) networks are gaining wide acceptance in short-to-medium range wireless sensing and positioning applications that require high accuracy. It is achieved generally via signal message exchange between ultra-wideband (UWB)
Shashi Shah, Krit Chaiwong, La-Or Kovavisaruch, Kamol Kaemarungsi, Tanee Demeechai   +4 more
doaj   +1 more source

Ultra-Wideband MIMO Antenna System With High Element-Isolation for 5G Smartphone Application

IEEE Access, 2020
In this paper, we presented an ultra-wideband multiple-input multiple-output (MIMO) antenna system with high element-isolation for the application in 5G metal-frame smartphones.
Xiao-Ting Yuan, Wei He, Kai-Dong Hong, Chong-Zhi Han, Zhe Chen, Tao Yuan   +5 more
semanticscholar   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Design and study of ultra-wideband folded loop antennas

Tongxin xuebao, 2010
Design of a novel ultra-wideband folded loop antenna was proposed.It was fed by coplanar waveguide and can be easily integrated with other microwave circuits.By introducing a pentagonal folded loop,the bandwidth of the an-tenna is improved twice than ...
LV Wen-jun, ZHU Hong-bo
doaj   +2 more sources

Design of a Compact CPW-Fed Monopole Antenna With Asymmetrical Hexagonal Slot Loaded Ground Structure for C/X/Ku Band Applications

Electrical, Control and Communication Engineering, 2020
A novel design of ultra-wideband CPW-fed compact monopole patch antenna is presented in the article. The size of the antenna is 22 × 18 × 1.6 mm and it operates well over an ultra-wideband frequency range 4.86–13.66 GHz (simulated) and 4.93–13.54 GHz ...
Dwivedi Ajay Kumar, Mishra Brijesh, Singh Vivek, Tripathi Pramod Narayan, Singh Ashutosh Kumar   +4 more
doaj   +1 more source

Flexible Thin Film-Based Triple Port UWB MIMO Antenna With Modified Ground Plane for UWB, WLAN, WiMAX, WPAN and 5G Applications

IEEE Access, 2023
This manuscript presents a triple-port ultra-wideband (UWB) multiple-input multiple-output (MIMO) antenna designed for wireless communication. The antenna employs automobile window film as a substrate, which is a cost-effective, easily accessible, and ...
Paitoon Rakluea, Norakamon Wongsin, Chatree Mahatthanajatuphat, Pongsathorn Aroonmitr, Thinnawat Jangjing, Chawalit Rakluea, Wanchalerm Chanwattanapong, Nonchanutt Chudpooti   +7 more
doaj   +1 more source

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

Design of Ultra Wideband Antenna

International Journal of Recent Technology and Engineering (IJRTE), 2020
In this paper, A coplanar waveguide (CPW) ultra-wideband(UWB) antenna is designed, analyzed and simulated by computer simulation technology(CST). The proposed antenna is fabricated on FR-4 dielectric substrate. A microstrip feed line is used to excite the antenna.The ground plane is slotted to improve the impedance bandwidth (BW).
Anjaneyulu Katuru*, Sudhakar Alapati
openaire   +1 more source

Ultra-Wideband Antenna Design for GPR Applications: A Review

, 2017
This paper presents a comparative review study on ultra-wideband (UWB) antenna technology for Ground Penetrating Radar (GPR) applications. The proposed antenna designs for UWB ground penetrating radar include a bow-tie antennas, Vivaldi antennas, horn ...
J. Ali, N. Abdullah, M. Ismail, E. Mohd, S. M. Shah   +4 more
semanticscholar   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source