Results 61 to 70 of about 3,338 (308)

Mutual Coupling Reductions of Dielectric Resonator Antennas without Extra Circuits [PDF]

, 2023
This paper describes an effective strategy to reduce the mutual couplings of dielectric resonator antennas without using extra circuits. The strategy is enabled by etching an elliptical cylinder in a cube-shaped dielectric resonator along its diagonal ...
Mei, Peng; id_orcid, Pedersen, Gert Frølund; id_orcid, Zhang, Shuai; id_orcid   +2 more
core   +1 more source

Atomized Oxidative Polymerization as a 3D Printing Platform for Binder‐Free, Bulk Conductive Polymer Architectures

Advanced Functional Materials, EarlyView.
Co‐delivery of electrosprayed EDOT and oxidant enables bulk oxidative polymerization during layer‐by‐layer fabrication, creating stable, highly conductive 3D PEDOT structures. This Atomized Oxidative Polymerization (AOP) overcomes the surface deposition‐only and matrix‐limited conductivity of conventional Vapor Phase Polymerization (VPP) and PEDOT:PSS ...
Tazdik Patwary Plateau, Hiep Pham, Jonghyun Park   +2 more
wiley   +1 more source

Radiation Characteristics Enhancement of Dielectric Resonator Antenna Using Solid/Discrete Dielectric Lenses

Advanced Electromagnetics, 2015
The radiation characteristics of the dielectric resonator antennas (DRA) is enhanced using different types of solid and discrete dielectric lenses. One of these approaches is by loading the DRA with planar superstrate, spherical lens, or by discrete lens
H. A. E. Malhat, S. H. Zainud-Deen, W. M. Hassan, K. H. Awadalla   +3 more
doaj   +1 more source

High isolation MIMO antenna for 5G C-band application by using combination of dielectric resonator, electromagnetic bandgap, and defected ground structure

EURASIP Journal on Wireless Communications and Networking, 2022
High isolation between massive MIMO antenna elements is one of the important parameters that improves antenna performance, especially for 5G communication applications.
Efri Sandi, Aodah Diamah, Mumtaz Al Mawaddah   +2 more
doaj   +1 more source

Split Ring Antennas and Their Application for Antenna Miniaturization

Sensors, 2023
This paper investigates the miniaturization capability of split ring array antennas embedded in a low-permittivity dielectric substrate, in comparison with the same-sized high-permittivity dielectric resonator antennas (DRAs).
Yanxia Liu, Lotfollah Shafai, Dustin Isleifson, Cyrus Shafai   +3 more
doaj   +1 more source

Submicron Metasurface Reconfigured Multiband Smart Windows

Advanced Functional Materials, EarlyView.
This work presents a submicron metasurface reconfigured multiband thermochromic smart window. By integrating subwavelength nanostructures into a Fabry−Perot resonator configuration, it mitigates conventional trade‐offs to simultaneously deliver high luminous transmittance and robust solar heating and radiative cooling modulation capabilities ...
Guanya Wang, Shancheng Wang, Bin Li, Xinyi Tian, Rong Liu, Jian Chen, Zhendong Dai, Shouqin Tian, Yi Long   +8 more
wiley   +1 more source

A Study of Wideband Dielectric Resonator Antennas Loaded With Special Dispersive Materials

IEEE Open Journal of Antennas and Propagation
In this paper, a comprehensive study of wideband dielectric resonator antennas (DRAs) loaded with special dispersive materials is given in detail. The concept and theory for a new class of wideband and compact DRAs are introduced for the first time using
Xiantao Yang, Elliot Leon Bennett, Ilkan Calisir, Qiang Hua, Jianliang Xiao, Yi Huang   +5 more
doaj   +1 more source

A Comprehensive Review of Metasurface Structures Suitable for RF Energy Harvesting

IEEE Access, 2020
Energy harvesting (EH) or scavenging is recognized as harvesting energy from ambient energy sources in the surrounding environment. This paper reports a literature review on radio frequency (RF) EH using different metasurface/metamaterial structures ...
Abdulrahman Ahmed Ghaleb Amer, Syarfa Zahirah Sapuan, Nasimuddin Nasimuddin, Arokiaswami Alphones, Nabiah Binti Zinal   +4 more
doaj   +1 more source

Shaping Matter with Acoustic Waves: From Particles to Functional Structures

Advanced Functional Materials, EarlyView.
Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg, Shelly Zlotnikov, Maya Fiorentino, Yuval Elias, Ornit Nagler‐Avramovitz, Hagay Shpaisman   +5 more
wiley   +1 more source

All‐Solution‐Processed HgTe Quantum Dot Photodetectors for Extended Short‐Wavelength Infrared Range Enhanced by Plasmonic ITO Nanocrystals

Advanced Functional Materials, EarlyView.
All‐solution‐processed, low‐cost extended short‐wavelength infrared photodetectors are realized by coupling colloidal HgTe quantum dots to plasmonic In2O3:Sn,F nanocrystals. Localized surface plasmon resonances boost and spectrally tailor light absorption between 1500 and 3000 nm, enabling responsivities above 40 A W−1.
Kseniia A. Sergeeva, Anastasiia V. Sokolova, Chenxi Guo, Yuanfei Huo, Yulia V. Kuznetsova, Ran An, Aleksandr A. Sergeev, Kam Sing Wong, Tianshuo Zhao, Andrey L. Rogach   +9 more
wiley   +1 more source