Results 41 to 50 of about 76,234 (259)

Circular ring structured ultra‐wideband antenna for wearable applications

International journal of RF and microwave computer-aided engineering, 2018
This article explores the design and analysis of a novel ultra‐wideband (UWB) antenna for body‐centric applications. The designed antenna consists of circular ring structured radiating element with 24 spokes, which resembles the shape of Ashoka chakra ...
B. Prudhvi Nadh, B. Madhav, M. Siva kumar, M. Venkateswara Rao, Dr. Anilkumar Tirunagari   +4 more
semanticscholar   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

ANALYSIS OF ANTENNA SYSTEM MODELING WITH THE HELP OF SIMULATION TECHNOLOGY OF NAVIGATION EQUIPMENTS

Сучасні інформаційні системи
In this paper, a new coplanar waveguide CPW (Coplanar Waveguide) fed circular waveguide for ultra-wideband UWB (Ultra WideBand) applications using High-Frequency Structure Simulator (HFSS) and Computer Simulation Technology (CST) software is presented ...
Asad Rustamov , Elshan Hashimov , Tural Muradov , Ruslan Hashimov, Mukhtar Azizullayev   +4 more
doaj   +1 more source

A compact ultra‐wideband antenna with three C‐shaped slots for notched band characteristics

Microwave and optical technology letters (Print), 2018
In this paper, a compact UWB (ultra‐wideband) antenna with three C‐shaped slots for notched band characteristics is presented. The proposed antenna covers a bandwidth between 2.95 GHz and 12 GHz.
B. Hammache, A. Messai, I. Messaoudene, T. Denidni   +3 more
semanticscholar   +1 more source

The Role of Ultra‐Thin Buffer Layers for Achieving Ultra‐Low Dark Currents in Single‐Component Organic Photodetectors

Advanced Functional Materials, EarlyView.
Here, SubNc single‐component organic photodiodes (SC‐OPDs) are investigated, which achieve highly competitive performance metrics, including high EQE, ultra‐low JD, and high specific detectivity (D*). This study emphasizes the critical role of an organic buffer layer in studying the interface energetics and effects to achieve state‐of‐the‐art ...
Anncharlott Kusber, Ying Sun, Jakob Wolansky, Louis Conrad Winkler, Anna‐Lena Hofmann, Fred Kretschmer, Hrisheekesh Thachoth Chandran, Tianyi Zhang, Mike Hambsch, Stefan C. B. Mannsfeld, Karl Leo, Ji‐Seon Kim, Johannes Benduhn   +12 more
wiley   +1 more source

COMPACT AND EFFICIENT UWB ANTENNA FOR SMART VEHICLE COMMUNICATION SYSTEMS

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ
The most recent wireless technology is ultra-wideband (UWB), which makes use of a broad frequency range for efficient communication, fast data transmission, and precise position recognition.
Amjad Kadhum Majeed, Rashid Ali Fayadh, Mousa K. Wali, H. S. Mohammed   +3 more
doaj   +1 more source

Advances in MIMO Antenna Design for 5G: A Comprehensive Review

Sensors, 2023
Multiple-input multiple-output (MIMO) technology has emerged as a highly promising solution for wireless communication, offering an opportunity to overcome the limitations of traffic capacity in high-speed broadband wireless network access.
Tej Raj, Ranjan Mishra, Pradeep Kumar, Ankush Kapoor   +3 more
doaj   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Oxidized MoS2‐Based Multifunctional Memristive Hardware for Energy‐Efficient mmWave Signal Processing and In‐Memory Matrix Multiplication

Advanced Functional Materials, EarlyView.
Thermally oxidized MoS2‐based radio‐frequency switches enable a multifunctional platform that unifies broadband RF switching and in‐memory computation. The device achieves a cutoff frequency of 33.2 THz with high energy efficiency and supports hardware‐aware signal processing.
Juho Son, Changwoo Pyo, Sungmoon Park, Yoongi Cho, Seungchan Lee, Myungsoo Kim   +5 more
wiley   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source