Results 51 to 60 of about 453,146 (211)

A Wideband Circularly Polarized Microstrip Patch Antenna With Embedded Shielding Package Based on Quarter-Mode Substrate Integrated Waveguide Feed

IEEE Access, 2020
In this paper, the feasibility of using the half-mode/quarter-mode of a substrate integrated waveguide (HMSIW/QMSIW) cavity to feed microstrip patch antennas (MPAs) is explored; based on this, a circularly polarized (CP) MPA fed by the sequential ...
Kai Sun, Yue Tang, Sihao Liu, Jin Pan, Deqiang Yang   +4 more
doaj   +1 more source

Autonomous Charging and Battery Swapping for Unmanned Aerial Vehicles: A Review

Advanced Intelligent Systems, EarlyView.
This review evaluates major autonomous charging and battery swapping methods for unmanned aerial vehicles (UAVs) against a single question: how close each is to sustained unattended operation. Rather than ranking them by charging performance, it identifies the limitation that most restricts each method, and briefly outlines the supporting technologies ...
Zelin Wu, Yuanwen Zhang, Xiangdong Meng, Guangyu Zhang, Huiwen Zhang, Yuquan Leng   +5 more
wiley   +1 more source

Beam scanning using microstrip line on biased ferrite [PDF]

, 1997
The beam scanning properties of a 2-element patch array fed by a microstrip reed situated on a ferrite substrate are presented. Biasing the ferrite changes the phase length or the microstrip line, scanning the beam by up to 40 degrees. The resulting scan
Langley, Richard J., Batchelor, John C.
core   +1 more source

A Scalable Platform for Massively Parallel Superconducting Single‐Photon Detection

Laser &Photonics Reviews, EarlyView.
One hundred independent superconducting nanowire detectors, each with efficiency up to 80.1–98.3%, are integrated into a single compact system operating below 2.1 K. This parallel architecture supports fully connected multi‐user quantum entanglement distribution, while its scalability opens new avenues in optical quantum computing, QKD networks ...
You Xiao, Zhen Wan, Dianpeng Wang, Jianjian Zhu, Huiqin Yu, Shuna Wang, Zhiyun Shu, Chaomeng Ding, Hongxin Xu, Jia Huang, Jiamin Xiong, Xiaoyu Liu, Lingyun Li, Lixing You, Hao Li   +14 more
wiley   +1 more source

Design and analysis of quasi‐lumped notch filter with extended upper pass band

Electronics Letters
This paper presents a hybrid technique‐based compact narrow band stop filter design for broadband applications. It provides the rejection of 60 dB at the centre frequency of 2.25 GHz without any stop band harmonics over the required frequency band of ...
Mohit, Satish Jhariya, Shailendra Singh, Raghvendra Kumar Rai   +3 more
doaj   +1 more source

Enhanced Transmit Efficiency of a Loop Array Combined With Out‐of‐Phase Passive Dipoles for Thoracic Spinal Cord MRI at 7T

Magnetic Resonance in Medicine, Volume 96, Issue 5, Page 2539-2552, November 2026.
ABSTRACT Purpose The design of radiofrequency (RF) coils tailored for the target anatomy is necessary to overcome the transmit field homogeneity and penetration issues at Ultra‐High‐Field (UHF). For the spinal cord, the optimal design has not yet been determined. This work intends to demonstrate the added value of a pair of passive dipoles placed under
Hugo Amat, Marc Dubois, Aurelien Destruel, Sajad Hosseinnezhadian, Djamel Berrahou, Charles Betemps, Amira Trabelsi, David Bendahan, Stefan Enoch, Virginie Callot, Redha Abdeddaim   +10 more
wiley   +1 more source

Bamboo‐Slip‐Inspired Conformal Reconfigurable Metasurfaces

Advanced Science, Volume 13, Issue 58, 19 October 2026.
Bamboo‐slip‐inspired conformal reconfigurable metasurface system. The structure is mainly composed of three parts, which are conformal metasurface, pattern reconfigurable antenna, and control components (such as Field Programmable Gate Array (FPGA)). Conformal metasurfaces draw inspiration from the design of ancient Chinese bamboo slips.
Qifan Li, Shaofeng Zhang, Qiang Feng, Dexiao Xia, Yajie Mu, Xiangjin Ma, Jiaqi Han, Haixia Liu, Guangyao Liu, Long Li   +9 more
wiley   +1 more source

A compact and sensitive spurline-based microwave sensor for non-invasive glucose detection

Discover Applied Sciences
Non-invasive blood glucose monitoring remains a critical need in diabetes management, prompting the development of compact, sensitive, and user-friendly sensing technologies.
Ibrahim Zewail, Tamer Gaber Abouelnaga, Mona Shokair, M. Mokhtar Zayed   +3 more
doaj   +1 more source

Textile Metamaterials: Design, Fabrication, and Emerging Applications

Applied Research, Volume 5, Issue 5, October 2026.
Textile metamaterials combine sub‐wavelength electromagnetic structures with textile architectures, enabling flexible and wearable platforms for wave manipulation. This review highlights their evolution, fabrication strategies, electromagnetic characteristics, and emerging applications, while identifying key challenges and opportunities for next ...
Samanta M. de Holanda, Arthur M. da Silva, Thiago F. Santos, Dieter Rahmadiawan, Francisco D. M. Nobre, Jose Heriberto Oliveira do Nascimento, Idalmir de Souza Queiroz Júnior, Antonio Sergio Bezerra Sombra, Humberto D. de Andrade   +8 more
wiley   +1 more source

An UWB LNA Design with PSO Using Support Vector Microstrip Line Model

Journal of Applied Mathematics, 2015
A rigorous and novel design procedure is constituted for an ultra-wideband (UWB) low noise amplifier (LNA) by exploiting the 3D electromagnetic simulator based support vector regression machine (SVRM) microstrip line model.
Salih Demirel, Filiz Gunes, A. Kenan Keskin   +2 more
doaj   +1 more source