Results 21 to 30 of about 17,188 (287)

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

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   +1 more source

A Low-Profile Hybrid Multi-Permittivity Dielectric Resonator Antenna With Perforated Structure for Ku and K Band Applications

open access: yesIEEE Access, 2020
A wideband hybrid dielectric resonator antenna (DRA) consisting of a rectangular slot patch and a perforated stacked cylindrical dielectric resonator (DR) is proposed. A rectangular slot was etched on the grounding side of a microwave laminate (ϵs
Ihsan Ahmad Zubir   +10 more
doaj   +1 more source

Accurate Resonant Frequency Computation of Multisegment Rectangular Dielectric Resonator Antennas [PDF]

open access: yesJournal of Electromagnetic Waves and Applications, 2010
In this study, multi-segment dielectric resonator antenna (MSDRA) is analyzed. A new formulation depending on the Weighted Average Model (WAM) is proposed for the determination of resonant frequenc...
Gürel Ç.S., Coşar H., Akalin Ö.
openaire   +3 more sources

Electromagnetic radiation by antennas of arbitrary shape in a layered spherical media [PDF]

open access: yes, 2009
A unified method of moments model is developed for the analysis of arbitrarily shaped antennas that are radiating next to a multilayered dielectric sphere.
Khamas, S.K.
core   +1 more source

Purcell effect in Hyperbolic Metamaterial Resonators [PDF]

open access: yes, 2011
The radiation dynamics of optical emitters can be manipulated by properly designed material structures providing high local density of photonic states, a phenomenon often referred to as the Purcell effect.
Alexey P. Slobozhanyuk   +14 more
core   +2 more sources

A Compact Wide-Band Hybrid Dielectric Resonator Antenna with Enhanced Gain and Low Cross-Polarization

open access: yesInternational Journal of Antennas and Propagation, 2017
By loading two printed patches to the dielectric resonator antenna (DRA), a compact wide-band hybrid dielectric resonator antenna with enhanced gain and low cross-polarization is presented.
Feibiao Dong   +3 more
doaj   +1 more source

Rectangular Dielectric Resonator Antenna with Single Band Rejection Characteristics

open access: yesJournal of Telecommunications and Information Technology, 2019
In this paper, a rectangular dielectric resonator antenna (DRA) suitable for wideband applications is presented and a band notch of WLAN (5.15–5.75) GHz is proposed.
Mohamed Debab, Zoubir Mahdjoub
doaj   +1 more source

Enhanced transmission through arrays of subwavelength holes in gold films coated by a finite dielectric layer [PDF]

open access: yes, 2007
Enhanced transmissions through a gold film with arrays of subwavelength holes are theoretically studied, employing the rigid full vectorial three dimensional finite difference time domain method.
Brolo   +15 more
core   +3 more sources

Submillimeter wave communication versus millimeter wave communication

open access: yesDigital Communications and Networks, 2020
This paper studies the performance of a submillimeter wave antenna operating between frequencies 0.1 THz and 10 THz with a 4-cyano-4-pentylbiphenyl [5CB] substrate.
Madhuprana Goswami, Hyuck M. Kwon
doaj   +1 more source

Higher-Order-Mode Triple Band Circularly Polarized Rectangular Dielectric Resonator Antenna

open access: yesApplied Sciences, 2021
The paper presents a triband circular polarized rectangular dielectric resonator antenna. A single coaxial cable feeds the DRA to a double stub strip on the DRA side. A patch strip coupled to the feed assists in widening the bandwidth of the proposed DRA.
Muhammad Fitra Zambak   +4 more
doaj   +1 more source

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