Results 101 to 110 of about 829,156 (307)

Wideband Dual-Frequency Dual-Polarized Dipole-Like Antenna

, 2011
A wideband dual-frequency dual-polarized printed antenna is proposed for LTE, WLAN, and UWB systems. The dual-band antenna provides wide impedance bandwidths of 74% with respect to the center frequency of 2.725 GHz, and 39% with respect to the center ...
Bao, Xiulong, M. J. Ammann, X. L. Bao, Ammann, Max   +3 more
core   +2 more sources

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

Advanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou, James FitzPatrick, Li Meng, Kateryna Shevchuk, Ahmad Najafi, Yury Gogotsi   +5 more
wiley   +1 more source

Performance Analysis of Downlink Polarized Distributed Antenna Systems With Antenna Selection Diversity

IEEE Access
In this paper, we consider a distributed antenna system (DAS) with polarized antennas for the industrial internet-of-things, where distributed sensor nodes (SNs) with a single antenna are served by the closest distributed antenna (DA) port having ...
Jungsun Um, Jaehyun Park
doaj   +1 more source

An FSS-Backed Dual-Band Reflective Polarization Conversion Metasurface

IEEE Access, 2019
In this paper, a novel design of a co-polarized transmission window within the cross-polarized reflection band of a polarization converted meta-surface (PCM) is presented. First, a dual-band reflective polarization converted meta-surface is designed.
Mingbao Yan, Jiafu Wang, Yongqiang Pang, Cuilian Xu, Hongya Chen, Lin Zheng, Jieqiu Zhang, Shaobo Qu   +7 more
doaj   +1 more source

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

Advanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo, Mi Jeong Lee, Hyun Wook Kang, Seonhee Byeon, Soo‐Kyoung Choi, Nakwon Choi, Seung‐Woo Cho, Yoonhee Jin   +7 more
wiley   +1 more source

Behavior of propagating and evanescent components in azimuthally polarized non-paraxial fields [PDF]

, 2013
The contribution of the propagating and the evanescent waves associated with freely propagating non-paraxial light fields whose transverse component is azimuthally polarized at some plane is investigated.
Carnicer González, Arturo, Juvells Prades, Ignacio, Mejías, Pedro M., Martínez-Herrero, Rosario   +3 more
core   +1 more source

Highly-Efficient, Dual-Polarized Huygens’ Metasurfaces for Scan-Angle Enhancement Without Directivity Degradation

IEEE Access
We hereby propose a dual-polarized beam-deflecting metasurface that can double the scan-angle range of a phased-array antenna without compromising the directivity across all scan angles, including broadside.
Jaemin Kim, Mohammad Soltani, Minseok Kim, George V. Eleftheriades   +3 more
doaj   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Design of dual-polarized patch antennas for wireless communications

, 2018
Patch antennas are widely used in wireless communication systems, due to their features of low profile, lightweight and ease of integration with other microwave circuits.
Li, Qinlong, 李秦龍
core   +1 more source

Dual-band dual-linearly polarized multibeam transmit-reflect-array antenna with independent beams control

Alexandria Engineering Journal
In this paper, a dual-band, dual-linearly polarized multibeam transmit-reflect-array (TRA) antenna is proposed. The dual-beams with different polarizations can be transmitted in the lower frequency band and reflected in the higher frequency band.
Wei Luo, Liu Luo, Xiaoxue Wang, Min Wang, Hongsheng Zhang   +4 more
doaj   +1 more source