Results 41 to 50 of about 314,572 (210)

Circularly Polarized Axially Corrugated Feed Horn for CubeSat Reflectarray Applications

, 2020
Retlectarray (RA) and transmitarray (TA) antennas that use the element-rotation technique require the radiation from the feeding antenna to be circularly polarized (CP).
Miroslav J. Veljovic, Veljovic, Miroslav J., Skrivervik, Anja K., Anja K. Skrivervik   +3 more
core   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

Advanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting, Yuh‐Chyi Chang, Yi‐Chan Hung, Cheng‐Yuan Hsiao, Chao‐Kai Wen, Tsung‐Hsien Lin   +5 more
wiley   +1 more source

Continuum Robots in Surgery: From Engineering Design to Clinical Practice

Advanced Robotics Research, EarlyView.
The hyper‐redundant nature of continuum robot structures enables near‐infinite degrees of freedom leading to immense potential for medical applications. This review provides a historical background of continuum robots and novel ideas shaping their progress to current structural design, sensing technology, modeling techniques, and control methods.
Griffin Smith, Kaitlyn Clancy, Siwen Xie, Xiaochen Li, Sarah Khalife, Benjamin van der Woerd, Onaizah Onaizah   +6 more
wiley   +1 more source

Study the potential of micro laser sintering additive manufacturing technology for metallic 3D printing horn antenna structure

The Journal of Engineering
Applications for an antenna structure produced with additive manufacturing technology are numerous and promising. This study focuses explicitly on utilizing micro‐laser sintering (MLS) three‐dimensional (3D) printing technology to fabricate two ...
Sheikh Dobir Hossain, Bhushan Lohani, Ryan M. Price, Robert Christopher Roberts   +3 more
doaj   +1 more source

A Novel Miniaturized Four-Ridged Horn Antenna with Enhanced Gain

International Journal of Antennas and Propagation, 2021
Miniaturization of wideband antennas has attracted much attention for its wide application in modern society. This article proposes a novel broadband miniaturized four-ridged horn antenna (FRHA) with high gain operating from 2.6 to 8.4 GHz.
Yunqing Cao, Menglong Wang, Daoyuan Sun, Dan Shan   +3 more
doaj   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

AL398, A Novel NSUN6 Inhibitor, Attenuates Epithelial‐Mesenchymal Transition and Metastasis in Endometrial Cancer by Abrogating m5C‐Dependent Stabilization of Snail mRNA

Advanced Science, EarlyView.
Proposed molecular mechanism: NSUN6 catalyzes m5C methylation on Snail mRNA to enhance its stability, leading to Snail upregulation and EMT promotion. The first‐in‐class inhibitor AL398 suppresses endometrial cancer metastasis by targeting the NSUN6‐m5C‐Snail. axis. ABSTRACT Endometrial cancer (EC) constitutes a leading gynecologic malignancy for which
Xiangzhuan Zhao, Linlin Yang, Huanxiang Chen, Chenfeng Guo, Hongshen Lu, Ying Zhu, Xuanzhi Wang, Yang Li, Ruike Zhang, Zichong Huang, Yifang Chen, Keyu Jin, Zeduo Xu, Lingxiu Meng, Longfeng Zhang, Yuanyuan Han, Yicong Yan, Qiaozhen Kang, Junhu Wan, Hongyang Liu   +19 more
wiley   +1 more source

Efek Jumlah Ridge terhadap Performansi Antena Horn untuk Aplikasi Tomografi

Jurnal Elkomika
ABSTRAK Paper ini membahas pengaruh jumlah profil ridge terhadap performansi antena horn untuk aplikasi tomografi. Penelitian ini mengobservasi dua variasi jumlah ridge, yaitu dua ridge dan empat ridge.
FOLIN OKTAFIANI, SULISTYANINGSIH SULISTYANINGSIH, ACHMAD MUNIR   +2 more
doaj   +1 more source

Signal manipulation through horn antennas loaded with metamaterial-inspired particles: A review

EPJ Applied Metamaterials, 2015
This review paper summarizes our latest results on designing metamaterial-inspired particles that can be inserted inside horn antennas to provide signal manipulation capabilities to the overall system.
Barbuto Mirko, Ramaccia Davide, Trotta Fabrizio, Bilotti Filiberto, Toscano Alessandro   +4 more
doaj   +1 more source

Dielectric‐loaded substrate integrated waveguide H‐plane horn antenna with embedded air cavity

IET Microwaves, Antennas & Propagation, 2021
A new type of dielectric‐loaded substrate integrated waveguide H‐plane horn antenna with an embedded air cavity is proposed aiming to improve E‐plane performance on a thin substrate.
Sheng Huang, King Yuk Chan, Yunhao Fu, Rodica Ramer   +3 more
doaj   +1 more source