Results 81 to 90 of about 85,692 (393)
Embedded dielectric resonator antenna for bandwidthenhancement
Electronics Letters, 1997 A new embedded structure with an annular ring and a cylindrical dielectric resonator excited by means of a coaxial probe has been realised and investigated experimentally to obtain a large bandwidth enhancement. The return loss, radiation patterns, and antenna gain of this configuration are presented.
Sangiovanni, A. +2 more
openaire +1 more source
A state‐of‐art review on performance improvement of dielectric resonator antennas
, 2018 This article outlines a compressive review on investigation carried out targeting to gain, circular polarization (CP), and mutual coupling reduction in dielectric resonator antenna (DRA).
S. K. K. Dash, T. Khan, Y. Antar
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Free‐standing plasmonic gold‐based fractal antennas are fabricated by 3D nanoprinting, employing focused electron beam induced deposition and an optimized purification method to remove carbon while conserving structural fidelity. Simulation and experiment show broadband plasmonic activity, including customizable polarizability, thereby paving the way ...
Verena Reisecker +6 more
wiley +1 more source
Millimeter wave carbon nanotube gas sensor [PDF]
, 2007 This Letter reports experimental observations regarding the significant changes in the transmission modulus and phase of the propagating microwave signals up to 110 GHz in a micromachined coplanar waveguide supported on a dielectric membrane with a ...
Bary, Laurent +6 more
core +3 more sources
Quasi-Isotropic Hybrid Dielectric Resonator Antenna—Bow-Tie Patch with Harmonic Suppression [PDF]
, 2022 Taeyong Jeong +6 more
openalex +1 more source
The Trapezoidal Dielectric Resonator Antenna [PDF]
IEEE Transactions on Antennas and Propagation, 2008 The operational concepts of the trapezoidal dielectric resonator antennas (DRAs) are presented and their performance is studied theoretically and experimentally. The rectangular parallelepiped is a special case of the more general trapezoid and therefore a comparison between both is useful in order to highlight their similarities and differences. It is
Almpanis, G., Fumeaux, C., Vahldieck, R.
openaire +2 more sources
Dielectric resonator antennas: An application oriented survey
, 2017 This survey article outlines a comprehensive investigation of research carried out on dielectric resonator antennas (DRAs) in the last three and half decades, in an application‐oriented approach.
S. K. K. Dash, T. Khan, A. De
semanticscholar +1 more source
Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore
Advanced Functional Materials, EarlyView.To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul +8 more
wiley +1 more source
A review on mid-band and high-band 5G MIMO antenna designs: challenges and research directions
EURASIP Journal on Wireless Communications and NetworkingModern wireless communication demands 5G-enabled systems capable of handling high data rate and channel bandwidth. Recently, circular-polarized multiple-input–multiple-output technology in the user equipment has dragged attention of the designers ...
Upali Aparajita Dash +2 more
doaj +1 more source
A novel technique to improve gain in transparent UWB antennas [PDF]
, 2011 A novel technique to improve the performance of AgHT-8 transparent polymer antennas is proposed in this paper. A spit-ring resonator is introduced on the radiating patch to enhance gain.
Cheung, SW +3 more
core +2 more sources