Results 121 to 130 of about 378,947 (242)

FRACTIONAL RECTANGULAR WAVEGUIDE [PDF]

Progress In Electromagnetics Research, 2007
Muhammad Faryad, Qaisar Abbas Naqvi
openaire   +1 more source

Advances in High‐Temperature Microwave‐Absorbing Materials With Rare Metals: Preparations, Classifications, and Strategies

Rare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT High‐temperature microwave‐absorbing materials (HTMAMs) are vital for the electromagnetic stealth of hypersonic aircraft and aerospace engines. Traditional carbon‐based or magnetic‐based absorbers suffer from oxidation, Curie‐temperature limitations, and impedance mismatch under extreme conditions.
Jing Wu, Lingfeng Yuan, Lurui Bai, Zewen Duan, Biao Zhao, Ruopeng Cui, Chunlei Wan   +6 more
wiley   +1 more source

Using full‐waveform techniques to understand lysimeter‐induced effects on ground penetrating radar measurements

Vadose Zone Journal, Volume 25, Issue 6, November/December 2026.
Abstract Lysimeters are widely used to investigate soil‐plant‐atmosphere interactions and to assess the impact of management practices on water and nutrient fluxes. These interactions and fluxes are strongly impacted by local scale variability in soil water content and soil hydraulic properties. However, centimeter‐scale imaging of subsurface processes
Dominik Hoven, Katalin Havas, Jan van der Kruk, Harry Vereecken, Anja Klotzsche   +4 more
wiley   +1 more source

Fast Formation of Cloud Clusters by Internal Gravity Waves Emitted by Isolated Shallow Cumulus Clouds in the Conditionally Unstable Boundary Layer

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 11, November 2026.
Abstract The study investigates the processes of cumulus cloud (Cu) dissipation and the formation of a cloud cluster under the conditions of the Barbados Oceanographic and Meteorological Experiment using large‐eddy simulations (LES) with 10 and 20 m resolution and spectral bin microphysics.
Alexander Khain, Mark Pinsky, Ehud Gavze, Yael Arieli, Jacob Shpund   +4 more
wiley   +1 more source

Daily Peak Activity of the African Lightning Chimney Based on Meteosat Third Generation (MTG) Lightning Imager (LI), World Wide Lightning Location Network (WWLLN), and Schumann Resonance (SR) Observations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract Lightning activity is strongly concentrated in tropical continental “chimneys”, among which the African lightning chimney stands out as the most intense globally. However, until recently, the incomplete and spatially uneven detection efficiency of ground‐based lightning networks, together with the limited spatio‐temporal coverage of satellite ...
K. Németh, E. Williams, Q. Wang, A. Neska, G. Sátori, M. Herein, T. Haszpra, P. Steinbach, T. Bozóki   +8 more
wiley   +1 more source

Photoinduced Plasmon‐Polariton Mediated Energy Storage

Nanophotonics, Volume 15, Issue 20, 27 October 2026.
A novel concept of photo plasmonic voltaic energy storage captured in special nanocapacitor is presented. The photoinduced plasmon‐mediated capacitor is a basis for innovative “plasmonic solar cells” which could be manufactured from inexpensive plasmonic generating metals coated with readily available dielectric materials while being a surface ...
Nitzan Shauloff, Yury Turkulets, Ilan Shalish, Yossi Abulafia, Zeev Zalevsky, Raz Jelinek   +5 more
wiley   +1 more source

Compact dielectric-filled waveguide filters and diplexers

, 2012
This paper presents electromagnetic simulations of dielectric-filled rectangular waveguide bandpass filter structures with microstrip to waveguide transitions as well as a diplexer based on such filters for modern wireless systems.
Budimir, D., Mohottige, N.
core   +1 more source

Toroidal Dipole‐Dominated High‐Performance Optical Sensors via Nanoimprinted Tetramer Architectures

Nanophotonics, Volume 15, Issue 20, 27 October 2026.
We developed a scalable low‐cost nanoimprinted tetramer architecture (NTA) sensor using two‐step nanoimprint lithography. It comprises polystyrene nanopillar tetramer arrays on a PS waveguide and gold mirror, supporting a toroidal‐dipole‐mediated resonant mode at 810 nm with a simulated Q of 3124.
Hongsen Zhao, Shuai Han, Youpeng Zhuo, Ang Xu, Zhixin Wan, Yimin Chen, Peiqing Zhang, Qiushun Zou, Xiang Shen   +8 more
wiley   +1 more source

Waveguide bandpass filters for MMIC applications

, 2005
Novel 3D multilayer waveguide structures for MMIC filter applications are proposed and examined in this paper. Periodic multilayer-waveguide resonant structures, which can be used for bandpass filters, are presented.
Budimir, D., Lalehparvar, L.
core   +1 more source

Programmable Multidimensional Diffraction Engineering via an Optically Addressed Nested Fourier Metasurface

Nanophotonics, Volume 15, Issue 19, 13 October 2026.
An optically addressed nested Fourier metasurface is presented for programmable multidimensional diffraction routing without electrical interconnects. Local Fourier‐mode engineering combined with global superlattice diffraction enables on‐demand reconfigurable routing.
Jing Guo, Qinglei Zhao, Jingrui Yang, Zongyi Liu, Mingdong Zhu, Shuai Liu, Chao Li, Shuxin Wang, Qinglong Hu, Fengwei Guan, Qiang Liu, Qi Song   +11 more
wiley   +1 more source