Results 71 to 80 of about 13,537 (225)

Optimized Multiband Circularly Polarized Patch Antenna With Coupled Sub‐Patches for Wireless Applications

Microwave and Optical Technology Letters, Volume 67, Issue 10, October 2025.
ABSTRACT In this paper, a high gain multiband patch antenna is designed and analyzed for use in wireless applications. Coupled sub‐patches are integrated around a central hexagonal patch to extend the operating frequency and improve gain across multiple frequency bands.
Mahdi Abdelkarim, Majdi Bahrouni, Ali Gharsallah   +2 more
wiley   +1 more source

Multi‐Dimensional Multiplexed Metasurface for Multifunctional Near‐Field Modulation by Physics‐Driven Intelligent Design

Advanced Science, Volume 12, Issue 27, July 17, 2025.
The expansive design space of advanced metasurfaces, particularly those with multiple degrees of freedom (MDOF), renders traditional design methods less effective. A physics‐driven intelligent design is proposed for MDOF metasurfaces, which integrates physical knowledge into neural networks, enhancing interpretability and computational efficiency. This
Jian Lin Su, Zi Xuan Cai, Yiqian Mao, Long Chen, Xin Yi Yu, Zhi Cai Yu, Qian Ma, Si Qi Huang, Jianan Zhang, Jian Wei You, Tie Jun Cui   +10 more
wiley   +1 more source

Multidimensional analysis of 5G antenna with coaxial cables and circular slots using computational resources and polynomial analysis [PDF]

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
The study proposes a multidimensional mathematical modeling of antennas using coaxial cables for 5G, with emphasis on the relationship between cable length, frequency, and VSWR. By employing a final configuration incorporating five circular slots of 6 mm
Filipe C. de Andrade, Giselle Francine B. Muniz, Ana Karine D. C. Brandão, Kenedy Marconi G. dos Santos, Polyane A. Santos, Tagleorge M. Silveira   +5 more
doaj   +1 more source

Improved modified turnstile antenna [PDF]

, 1970
Improved antenna design embodies the principles of turnstiling, broadbanding, and delta dipole matching.
Lemson, P. H.
core   +1 more source

CAD of Stacked Patch Antennas Through Multipurpose Admittance Matrices From FEM and Neural Networks [PDF]

, 2008
In this work, a novel computer-aided design methodology for probe-fed, cavity-backed, stacked microstrip patch antennas is proposed. The methodology incorporates the rigor of a numerical technique, such as finite element methods, which, in turn, makes ...
Brierley, de la Rubia, Garg, Gil, Goldberg, Haykin, Monge, Monge, Otten, Rubio, Rubio, Rubio, Rubio, Rumelhart, Waterhouse   +14 more
core   +2 more sources

Remote sensing reveals inter‐ and intraspecific variation in riparian cottonwood (Populus spp) response to drought

Journal of Ecology, Volume 113, Issue 7, Page 1760-1779, July 2025.
Leaf‐level spectroscopy and canopy‐level UAV thermal data captured inter‐ and intraspecific responses to water stress in cottonwoods, which are widely distributed in arid environments. This study demonstrates the potential of remote sensing to monitor and predict the impacts of drought on scales varying from leaves to landscapes. Abstract Understanding
Megan M. Seeley, Benjamin C. Wiebe, Catherine A. Gehring, Kevin R. Hultine, Bradley C. Posch, Hillary F. Cooper, Elena A. Schaefer, Beatrice M. Bock, Andrew J. Abraham, Madeline E. Moran, Arthur Keith, Gerard J. Allan, Maya Scull, Thomas G. Whitham, Roberta M. Martin, Gregory P. Asner, Christopher E. Doughty   +16 more
wiley   +1 more source

Research on Impedance Matching Performance Evaluation Method for Ultrasonic Machining System Based on Standing Wave Detection

Actuators
The failure of impedance matching between the ultrasonic power supply and the transducer can degrade machining quality, decrease machining efficiency, and reduce tool life.
Nanchao Jiang, Hongxian Ye, Shixi Yang, Baohua Yu   +3 more
doaj   +1 more source

Fractal Patch Antenna Based on Photonic Crystal for Enhanced Millimeter‐Wave Communication in Intelligent Transportation Systems

Radio Science, Volume 60, Issue 5, May 2025.
Abstract This paper introduces a Fractal Patch Antenna (FPA) integrated with Photonic Crystals (PhC) designed for Intelligent Transportation Systems (ITS) in the Millimeter‐wave bands (mmWaves) given the importance of the application of mmWaves in Vehicle‐to‐Everything (V2X) networks, we assumed, as examples, that the antenna is designed to resonate at
Nila Bagheri, Jon M. Peha, Fernando J. Velez   +2 more
wiley   +1 more source

Design and research of high sensitive GIS intermittent partial discharge leakage electromagnetic wave detection sensor

Diance yu yibiao
Aiming at the requirement of highly sensitive perception of gas insulated switchgear (GIS) intermittent partial discharge leakage electromagnetic wave.
QIU Hu, YANG Xu, LUO Chuanxian, ZHANG Jing, WEN Hao, ZHANG Guozhi   +5 more
doaj   +1 more source

Cancer Diagnosis Optimization With a Combination of Flexible THz Antennas and Machine Learning

Engineering Reports, Volume 7, Issue 4, April 2025.
THz research offers a promising solution, utilizing nonionizing terahertz radiation to achieve superior resolution. To this end, a proposed Microstrip antenna emerges as a cost‐effective and high‐resolution tool for enabling the accurate diagnosis and detection of superficial cancers.
M. Senthil Pandian, S. Deepa Nivethika, J. Idhikash, Vamsee N. Yashwanth, Aishwarya Shaji, Prabhakaran Paulraj   +5 more
wiley   +1 more source