Results 101 to 110 of about 85,692 (393)

Flexible Cylindrical Dielectric Resonator Antenna for X-Band Satellite, Space, Wireless Sensor Networks, and Flexible Applications

IEEE Access
Growing demand for flexible and conformal electronics has led to the development of mechanically stable antennas. This research investigates a fully flexible cylindrical dielectric resonator antenna (FCDRA) designed using elastomer materials for X-band ...
Amera Anjum, Jagadish C. Mudiganti
doaj   +1 more source

Brewster quasi bound states in the continuum in all-dielectric metasurfaces from single magnetic-dipole resonance meta-atoms

, 2019
Bound states in the continuum (BICs) are ubiquitous in many areas of physics, attracting especial interest for their ability to confine waves with infinite lifetimes.
Abujetas, Diego R., Barreda, Angela, Geffrin, Jean-Michel, Litman, Amelie, Moreno, Fernando, Saenz, Juan J., Sanchez-Gil, Jose A.   +6 more
core   +3 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

Steerable Higher Order Mode Dielectric Resonator Antenna With Parasitic Elements for 5G Applications

IEEE Access, 2017
This paper presents the findings of a steerable higher order mode (TE1δ3y) dielectric resonator antenna with parasitic elements. The beam steering was successfully achieved by switching the termination capacitor on the parasitic element.
Nor Hidayu Shahadan, Mohd Haizal Jamaluddin, Muhammad Ramlee Kamarudin, Yoshihide Yamada, Mohsen Khalily, Muzammil Jusoh, Samsul Haimi Dahlan   +6 more
doaj   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

CSRR Loaded Graphene Inspired EBG Based High Isolation Miniaturized Wideband THz Dielectric Resonator MIMO Antenna for Nano Communication in 6G-IoT and Bio-Medical (Hemoglobin and Urine) Sensing Application [PDF]

, 2023
Gaurav Saxena, Sanjay Chintakindi, Abdulsalam Al-Tamim, Mustufa Haider Abidi, Wigdan Aref Mohammed Saif, Praveen Kumar Maduri, Shilpee Patil, Himanshu Singh, Yogendra Kumar Awasthi   +8 more
openalex   +1 more source

Photo‐Switching Thermal and Lithium‐Ion Conductivity in Azobenzene Polymers

Advanced Functional Materials, EarlyView.
Light‐responsive azobenzene polymers control thermal and ionic transport simultaneously through structural transitions. UV illumination disrupts π–π stacking, converting crystalline trans states to amorphous cis configurations. Thermal conductivity drops from 0.45 to 0.15 W·m−1·K−1 while Li+ diffusivity increases 100 fold. This dual transport switching
Jaeuk Sung, Jungwoo Shin, Qiujie Zhao, Minjee Kang, Christopher Evans, Cecilia Leal, Paul V. Braun, David G. Cahill   +7 more
wiley   +1 more source

Cylindrical dielectric resonator antenna array

Electronics Letters, 1995
A 1/spl times/2 linear cylindrical resonator antenna array is studied experimentally. The DR antenna is excited by an aperture-coupled source and is operated at the fundamental broadside TM/sub 110/ mode. The input impedance, the radiation pattern, the antenna gain, and the mutual coupling of the array are studied.
K.Y. Chow, K.W. Leung, K.M. Luk, E.K.N. Yung   +3 more
openaire   +1 more source

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

Advanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee, Osman Gul, Yeongjae Kwon, Jaeseok Jeong, Seokjoo Cho, Jihyeon Ahn, Jehee Yu, Cheolmin Kim, Donho Lee, Hyeonseok Han, Byeongju Lee, Jungrak Choi, Ji‐Hwan Ha, Yongrok Jeong, Kyungnam Kang, Ali Javey, Junseong Ahn, Inkyu Park   +17 more
wiley   +1 more source

Broadband stacked dielectric resonator antennas

Electronics Letters, 1989
The input impedance of stacked cylindrical dielectric resonator antennas is investigated experimentally. The dielectric resonators are made of different materials. The bandwidth of 25% has been observed for a standing wave ratio better than 2.
A.A. Kishk, B. Ahn, D. Kajfez
openaire   +1 more source