Results 71 to 80 of about 639,224 (342)

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

Three‐dimensional Antimony Sulfide Based Flat Optics

Advanced Functional Materials, EarlyView.
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang, Uwe Hübner, Anne Gärtner, Tao Chen, Joseph Köbel, Franka Jahn, Daniel Repp, Abhrodeep Dey, Henrik Schneidwind, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Matthias Zeisberger, Tanveer Ahmed Shaik, Astrid Bingel, Markus A. Schmidt, Jer‐Shing Huang, Ulf Peschel, Volker Deckert   +18 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

Single-, Dual- and Triple-band Frequency Reconfigurable Antenna [PDF]

, 2014
The paper presents a frequency reconfigurable slot dipole antenna. The antenna is capable of being switched between single-band, dual-band or triple-band operation.
Hamid, M. R., Idris, I. H., Jamaluddin, M. H., Kelly, J. R., Majid, H. A., Rahim, M. K. A.   +5 more
core   +1 more source

Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces

Advanced Functional Materials, EarlyView.
A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai, Yi Ning Zheng, Lei Zhang, Xiao Qing Chen, Giuseppe Castaldi, Tie Jun Cui, Vincenzo Galdi   +6 more
wiley   +1 more source

Terahertz Reconfigurable Planar Graphene Hybrid Yagi–Uda Antenna

Nanomaterials
In this paper, we design a frequency reconfigurable antenna for terahertz communication. The antenna is based on a Yagi design, with the main radiating elements being a pair of dipole antennas printed on the top and bottom of a dielectric substrate ...
Qimeng Liu, Renbin Zhong, Boli Xu, Jiale Dong, Gefu Teng, Ke Zhong, Zhenhua Wu, Kaichun Zhang, Min Hu, Diwei Liu   +9 more
doaj   +1 more source

A reconfigurable H-shape antenna for wireless applications [PDF]

, 2010
The official published version of this article can be obtained from the link below - Copyright @ EuCAP2010This paper presents a novel H-Shaped reconfigurable microstrip patch antenna fed by a Grounded Coplanar Waveguide (GCPW) for wireless applications.
AbuTarboush, HF, Al-Raweshidy, H, Budimir, D, Nasr, KM, Nilavalan, R   +4 more
core   +1 more source

Energy‐Efficient Bulk Photoalignment of Main‐Chain Liquid Crystalline Polymers Enabled by In Situ Monitoring

Advanced Functional Materials, EarlyView.
In situ monitoring of bulk photoalignment reveals how molecular weight, azobenzene content, cooling rate, and thickness govern ordering in main‐chain liquid crystalline polymers. Optimized copolymers exceed conventional thickness limits, maintaining stable alignment up to 130 µm with high energy efficiency and reversible optical patterning.
Jaechul Ju, Joy Zhou, Connor J. O'Dea, Zachariah A. Page   +3 more
wiley   +1 more source

Pattern Reconfigurable Antenna Applying Spoof Surface Plasmon Polaritons for Wide Angle Beam Steering

IEEE Access, 2019
A pattern reconfigurable antenna based on switchable spoof surface plasmon polaritons (SSPPs) transmission line is experimentally presented. There are two fundamental modes on traditional SSPPs transmission line, the odd mode and the even mode.
Kaijie Zhuang, Jun-ping Geng, Kun Wang, Han Zhou, Yuliang Liang, Xianling Liang, Weiren Zhu, R. Jin, Wenfeng Ma   +8 more
semanticscholar   +1 more source

Liquid Metal Bandwidth-Reconfigurable Antenna

IEEE Antennas and Wireless Propagation Letters, 2020
This letter shows how slugs of liquid metal can be used to connect/disconnect large areas of metalization and achieve a radiation performance not possible by using conventional switches.
K. Y. Alqurashi, J. Kelly, Zhengpeng Wang, C. Crean, R. Mittra, M. Khalily, Yue Gao   +6 more
semanticscholar   +1 more source