Results 51 to 60 of about 29,451 (299)

A Liquid-Metal-Based Crossed-Slot Antenna With Polarization and Continuous-Frequency Reconfiguration

IEEE Open Journal of Antennas and Propagation, 2022
Aiming to the limitations of traditional reconfigurable antennas, this paper proposes a novel reconfigurable antenna that can achieve four polarizations and continuously-tunable frequency.
Yi Zhou, Ge Zhao, Xiao Yu Li, Mei Song Tong   +3 more
doaj   +1 more source

Pattern reconfigurable patch array for 2.4 GHz WLAN systems [PDF]

, 2014
In this project, a pattern reconfigurable simple two patch array antenna has been designed and implemented to operate at a fixed frequency of 2.4 GHz for beam scanning purpose.
Abbak, Deal, Parker, Rabinovich, Rebeiz, Stutzman   +5 more
core   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

Broadband pattern‐reconfigurable water loop antenna, pattern‐reconfigurable water loop antenna

IET Microwaves, Antennas & Propagation, 2021
Abstract A novel loop antenna is proposed here. This antenna uses an annular arm made of pure water to take the place of the metallic loop of a typical loop antenna. The water arm is enclosed by a resin loop tube.
Zhen Ren, Shi‐Shan Qi, Wen Wu
openaire   +2 more sources

Programmable In‐Situ Interactions Between Resins and Photopolymerized Structures for Seamlessly Integrated Optical Manufacturing of Microlenses

Advanced Functional Materials, EarlyView.
This study presents a dynamic interaction between liquid resins and photopolymerized structures enabled by an in situ light‐writing setup. By controlling a three‐phase interface through localized photopolymerization, which provides physical confinement for the remaining uncured resin regions, the approach establishes a programmable pathway that ...
Kibeom Kim, Sangmin Oh, Kahyun Hur, Hyesung Cho   +3 more
wiley   +1 more source

A Cassegrain Antenna With Field-Controlled Reconfigurable Subreflector for HIRF Protection

IEEE Open Journal of Antennas and Propagation
This paper proposed a Cassegrain antenna with a field-controlled reconfigurable subreflector for high-intensity radiation fields (HIRF) protection. By replacing the rotating hyperboloid subreflector with a field-controlled reconfigurable metasurface, the
Zhuang Qu, Song Zha, Jihong Zhang, Ming Xu, Zhengwei Liu, Peiguo Liu   +5 more
doaj   +1 more source

Design of Double Notch Band Half-Elliptical Shape Reconfigurable Antenna for UWB Applications [PDF]

Engineering and Technology Journal, 2019
A compact ultra-wideband (UWB) reconfigurable antenna with dual band-notched properties is presented in this paper. The dual notch band half – elliptical reconfigurable antenna is fed by (50 Ω) microstrip feed lines and it is printed above an FR-4 ...
Haydar Al-Tamimi, Salah O.
doaj   +1 more source

Negative Index Metamaterial-Based Frequency-Reconfigurable Textile CPW Antenna for Microwave Imaging of Breast Cancer

Sensors, 2022
In this paper, we report the design and development of a metamaterial (MTM)-based directional coplanar waveguide (CPW)-fed reconfigurable textile antenna using radiofrequency (RF) varactor diodes for microwave breast imaging.
Kabir Hossain, Thennarasan Sabapathy, Muzammil Jusoh, Shen-Han Lee, Khairul Shakir Ab Rahman, Muhammad Ramlee Kamarudin   +5 more
doaj   +1 more source

Planar Inverted-F Antennas (PIFA) for multiband wireless applications [PDF]

, 2010
This is a post-print version of the article - Copyright @ 2010 IEEEA compact reconfigurable four bands Planar Inverted-F Antenna (PIFA) is presented for Digital Video Broadcasting – Handheld (DVB-H), Universal Mobile Telecommunications System (UMTS ...
AbuTarboush, HF, Nilavalan, R, Peter, T
core  

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

Advanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta, Simone Bertucci, Jose Mendoza‐Carreño, Agustín Mihi, Paola Lova, Davide Comoretto, Ullrich Steiner, Marco Lattuada, Andrea Dodero   +8 more
wiley   +1 more source