Results 91 to 100 of about 14,945 (257)

Curved Dual - Band Dielectric Resonator Tag Antenna for RFID Applications

International Journal of Engineering Business Management, 2012
This paper presents a new application of dielectric resonator antenna in radio frequency identification system. A curved dual-band dielectric resonator antenna for RFID applications is proposed. The tag antenna is designed to operate at 2.45 GHz (2.25– 2.
Hend A. Malhat, Saber H. Zaiud-Deen, Kamal H. Awadalla   +2 more
doaj   +1 more source

A Flexible Metamaterial Absorber via Loss Engineering for Large‐Area Ultra‐Broadband Infrared Extinction

Advanced Science, EarlyView.
Designed and demonstrated a flexible metamaterial absorber via loss engineering for large‐area ultra‐broadband infrared extinction, providing a new method for miniaturization of absorbers and flexible optical devices. ABSTRACT The advancement of compact and wearable optical systems is critically limited by the lack of high‐performance, integrable ...
Zhe Wu, Zhongzhu Liang, Xiaoyan Shi, Fuming Yang, Enzhu Hou, Jihui Jiang, Xintong Wei, Siyu Guo, Bing Sun, Qingxin Tang, David R. Smith, Haiyang Xu   +11 more
wiley   +1 more source

Wideband P-Shaped Dielectric Resonator Antenna [PDF]

, 2013
A novel P-shaped dielectric resonator antenna (DRA) is presented and investigated for wideband wireless application. By using P-shaped resonator, a wideband impedance bandwidth of 80% from 3.5 to 8.2 GHz is achieved.
Danesh, S., Khalily, M., Kishk, A.A., Rahim, M.K.A.   +3 more
core  

Precision microwave dielectric and magnetic susceptibility measurements of correlated electronic materials using superconducting cavities

, 2000
We analyze microwave cavity perturbation methods, and show that the technique is an excellent, precision method to study the dynamic magnetic and dielectric response in the $GHz$ frequency range.
A. Revcolevschi, A. Vietkine, C. Kusko, Jacobs T., Müller J., N. Hakim, Revcolevschi A., S. Sridhar, Z. Zhai, Zhai Z.   +9 more
core   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

Advanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim, Seoa Kim, Erik A. Wu, Darren H. S. Tan, Shawn Peng, Xiaolin Li   +5 more
wiley   +1 more source

Coupling coefficients of different cylindrical dielectric resonators in the open space

Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2016
The calculation results of the mutual coupling coefficients of different relative sizes cylindrical dielectric resonators with magnetic modes are presented.
A. A. Trubin
doaj   +1 more source

Compact wideband multi-layer cylindrical dielectric resonator antennas

IET Microwaves, Antennas & Propagation, 2007
Homogenous dielectric resonator antennas (DRAs) have been studied widely and their bandwidth have been reached to the possible upper limit. A new non-homogenous DRA, multilayer cylindrical DRA (MCDRA), is designed and fabricated to achieve wider bandwidth. The antennas consist of three different dielectric discs, one on top of the other.
W. Huang, A.A. Kishk
openaire   +1 more source

Quantum spin Hall effect in bound states in continuum [PDF]

, 2019
Moving the polarization of the incident wave along a meridian of the Poincaré sphere, experimentally we show that the coupling with the fundamental Bloch's surface waves of the mode, provide a spatially coherent, macroscopic spinmomentum locked ...
Cabrini, S, Calafiore, G, De Luca, AC, Mocella, V, Penzo, E, Romano, S, Zito, G   +6 more
core  

Operando X‐Ray Diffraction and Total Scattering Characterization of Battery Materials: Not Just a Pretty Picture

Advanced Energy Materials, EarlyView.
This review focuses on operando studies of battery materials by X‐ray diffraction (XRD) and total X‐ray scattering (TXS). This work highlights potential pitfalls and identify best‐practices for operando studies and reviews some unusual experiments to illustrate how these methods can be applied beyond the evaluation of the early‐stage cycling mechanisms
Amalie Skurtveit, Eira Tiberg North, Izar Capel Berdiell, Wouter Van Beek, David S. Wragg, Alexey Y. Koposov   +5 more
wiley   +1 more source