Results 11 to 20 of about 16,158 (303)

Hybrid Dielectric Resonator Antenna Composed of High-Permittivity Dielectric Resonator for Wireless Communications in WLAN and WiMAX [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2012
The-hybrid dielectric resonator antenna consisted of a cylindrical high-permittivity dielectric resonator, a rectangular slot, and two-rectangular patches were implemented. The hybrid dielectric resonator antenna had three resonant frequencies. The lower,
Yih-Chien Chen
doaj   +2 more sources

Micromechanical resonator with dielectric nonlinearity [PDF]

open access: yesMicrosystems & Nanoengineering, 2018
AbstractNonlinear response of dielectric polarization to electric field in certain media is the foundation of nonlinear optics. Optically, such nonlinearities are observed at high light intensities, achievable by laser, where atomic-scale field strengths exceeding 106–108 V/m can be realized.
Mateen, Farrukh   +3 more
openaire   +6 more sources

Thermally tunable slot-coupled dielectric resonator antenna [PDF]

open access: yesAIP Advances, 2017
A thermally tunable slot-coupled dielectric resonator antenna (DRA) has been designed and prepared by placing a thermosensitive ceramic resonator onto the slot.
Ke Bi   +7 more
doaj   +2 more sources

Efficiency and Scalability of Dielectric Resonator Antennas at Optical Frequencies [PDF]

open access: yesIEEE Photonics Journal, 2014
Dielectric resonators have been foreseen as a pathway for the realization of highly efficient nanoantennas and metamaterials at optical frequencies. In this paper, we study the resonant behavior of dielectric nanocylinders located on a metal plane, which
Longfang Zou   +7 more
doaj   +2 more sources

Optical “fingerprints” of dielectric resonators

open access: yesJournal of the Optical Society of America B, 2023
The complete picture of the optical properties of resonant structures, along with the frequency, quality factor, and line shape in scattering spectra, is determined by the electromagnetic field distribution patterns, which are a kind of “fingerprint” of each resonant eigenmode. In this paper, we simultaneously analyze the changes in the spectra and the
A. P. Chetverikova   +4 more
openaire   +2 more sources

Bandwidth Improvement of a Cone-Inverted Cylindrical and Cross Hybrids Dielectric Resonator Antennas

open access: yesIraqi Journal of Physics, 2023
In this work, two cone-inverted cylindrical and cross-hybrid dielectric resonator antennas are stacked and excited by the coaxial probe method with an operating standard resonant frequency of 5.438 GHz.
Nabeel Areebi, Jamal Nasir Jabir
doaj   +1 more source

Dielectric Properties Characterization of Material under Test using Microstrip Ring Resonator [PDF]

open access: yes, 2021
The Resonator is one of the techniques widely used to determine the dielectric properties of a material. It is due to the accuracy of the resonator technique as compared to the other methods such as open wave guide sensor, transmission method, and ...
Dewani, AA   +4 more
core   +1 more source

A Dual-Band, Dual-Polarized Filtering Antenna Based on Cross-Shaped Dielectric Strip Resonator

open access: yesMicromachines, 2022
A dual-band, dual-polarized filtering antenna with a cross-shaped dielectric strip resonator is proposed. The dual-band filtering radiation function is achieved by utilizing the odd and even modes of the stub loaded microstrip resonator to excite the ...
Lixin Jin   +4 more
doaj   +1 more source

The Trapezoidal Dielectric Resonator Antenna [PDF]

open access: yesIEEE 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   +3 more sources

PROPERTIES OF THE TUNABLE WAVEGUIDE-DIELECTRIC RESONATOR OF THE MILLIMETER BAND WITH THE INCREASED Q-FACTOR [PDF]

open access: yesРадиофизика и электроника, 2015
The resonance structures serve as the basis for many electronic devices. Therefore the creation of the effective tunable resonator is the actual and important problem.
R. I. Bilous   +3 more
doaj   +1 more source

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