Results 191 to 200 of about 16,741 (297)

Analysis, design, and fabrication of a high-gain low-profile metasurface antenna using direct feeding of Sievenpiper's HIS. [PDF]

Sci Rep
Ghaneizadeh A, Peik SF, Schneider M, Joodaki M.   +3 more
europepmc   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Design and experimental validation of highly miniaturized microfluidically frequency reconfigurable self-triplexing antenna with high isolation. [PDF]

Sci Rep
Barik RK, Rajender R, Chandu DS, Koziel S, Rossi D, Szczepanski S.   +5 more
europepmc   +1 more source

Spin Hall Nano‐Antenna

Advanced Science, EarlyView.
ABSTRACT The spin Hall effect is a well‐known phenomenon in spintronics that has found numerous applications in digital electronics (memory and logic), but relatively few in analog electronics. Practically the only analog application in widespread use is the spin Hall nano‐oscillator (SHNO) that delivers a high frequency alternating current or voltage ...
Raisa Fabiha, Pratap Kumar Pal, Michael Suche, Amrit Kumar Mondal, Erdem Topsakal, Anjan Barman, Supriyo Bandyopadhyay   +6 more
wiley   +1 more source

On-chip microwave oscillator in deep-subwavelength scale based on spoof plasmonic skyrmions. [PDF]

Natl Sci Rev
Wang WZ, Liu Y, Zhang X, Gao ZL, Tang XS, Cui TJ.   +5 more
europepmc   +1 more source

Transmission of Radio‐Frequency Waves and Nuclear Magnetic Resonance in Lanthanum Superhydrides

Advanced Science, EarlyView.
1H NMR and radio‐frequency transmission measurements of lanthanum superhydrides at 165 GPa reveals a transition at 260–280 K by a strong suppression of the signal intensity, significant changes in NMR spectra, including a dramatic decrease of the relaxation rate 1/T1T, and pronounced shielding effect, which may have a superconducting nature.
Dmitrii V. Semenok, Florian Bärtl, Di Zhou, Toni Helm, Sven Luther, Joachim Wosnitza, Ivan A. Troyan, Viktor V. Struzhkin, Hannes Kühne   +8 more
wiley   +1 more source

High-gain and low-profile antenna using novel reflective surface for satellite applications. [PDF]

PLoS One
Nguyen LN.
europepmc   +1 more source

Reconfigurable, Temperature Resilient Phase‐Change Metasurfaces Fabricated via High Throughput Nanoimprinting Lithography

Advanced Science, EarlyView.
ABSTRACT The combination of metasurfaces with chalcogenide phase‐change materials is a highly promising route toward the development of multifunctional and reconfigurable nanophotonic devices. However, their transition into real‐world devices is hindered by several technological challenges. This includes, amongst others, the lack of large area photonic
Carlota de Ruiz de Galarreta, Yinghao Zhao, Jose Mendoza‐Carreño, José M. Caicedo, José Santiso, C. David Wright, M. Isabel Alonso, Jiafang Li, Agustin Mihi   +8 more
wiley   +1 more source

Broadband Achromatic Programmable Electromagnetic Camouflage via Fluidic-Accessible Metasurface. [PDF]

Adv Sci (Weinh)
Liu S, Zhang J, Wang J, Chen Z, Yu Z, Luo J, Luo J, Cao R, Gong S, Guo Q, Li P, Li R, Chen K, Jia Y, Liu Y.   +14 more
europepmc   +1 more source

2D Metal‐Organic Frameworks for High‐Performance Solid‐State Electrolytes: A Comprehensive Review

Advanced Science, EarlyView.
In this review, we elucidate the intrinsic advantages, synthetic methodologies, structural characteristics, ion‐transport mechanisms and performance optimization strategies while highlighting representative material systems and applications of 2D MOFs for electrolyte applications.
Changchun Ai, Yuan Tian, Yilei Shu, Peng Hang, Wentao Li, Yiling Yao, Huijuan Guo, Qun Yi, Hongmei Dai   +8 more
wiley   +1 more source