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cylindrical ring dielectric resonator

Integrated Ultra-Wideband Plannar Monopole with Cylindrical Dielectric Resonator Antennas

Integrated Ultra-Wideband Plannar Monopole with Cylindrical Dielectric Resonator Antennas

... DRAs make them as potential candidates for UWB systems [2–9]. The intensive investigations on UWB DRAs have been pursued and published. Using hybrid configurations, several monopole-DRAs have been studied, which are ...

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A Novel Compact Fractal Ring Based Cylindrical Dielectric Resonator Antenna for Ultra Wideband Application

A Novel Compact Fractal Ring Based Cylindrical Dielectric Resonator Antenna for Ultra Wideband Application

... This paper analyses the bandwidth enhancement of CDRA by Koch snowflake fractal ring. Initially, a conventional CDRA is designed, and snowflake geometry is applied to it. Koch snowflake fractal DRA implemented on ...

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A Wideband High-Gain Stacked Cylindrical Dielectric Resonator Antenna

A Wideband High-Gain Stacked Cylindrical Dielectric Resonator Antenna

... gain of a DRA to nearly 10 dBi [3]. Mushroom-like EBG structures are able to lead to a higher gain [4]. Recently, higher-modes methods are used for rectangular and ring DRAs, which have been proved to improve the ...

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An Artificial Neural Network Approach for the Harmonic Design of Annular Ring Dielectric Resonator Antennas

An Artificial Neural Network Approach for the Harmonic Design of Annular Ring Dielectric Resonator Antennas

... dielecric resonator is shown in Fig. 1. It consists of a circular cylindrical DRA of radius a and height d, on a metallic ground plane, realized by removing a concentric circular cylindrical core of ...

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Material Characterization Using Ring Resonator

Material Characterization Using Ring Resonator

... the dielectric properties of ...modified cylindrical cavity which was suitable for low dielectric materials only ...determining dielectric constant of microwave PCB ...

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Rectangular Ring-Slot Dielectric Resonator Antenna with Metallic Patch

Rectangular Ring-Slot Dielectric Resonator Antenna with Metallic Patch

... as cylindrical, hemispherical, rectangular ...and cylindrical shapes, due to flexibility in choosing aspect ratio ...of dielectric resonator antennas, such as, stacking multiple DRAs [8], ...

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Investigation on Circularly Polarized Ring Dielectric Resonator Antenna for Dual-Band Wireless Applications

Investigation on Circularly Polarized Ring Dielectric Resonator Antenna for Dual-Band Wireless Applications

... annular ring shape microstrip line ...dual-segment cylindrical DRA with annular ring shape microstrip line printed in order to obtain triple band operation ...

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InGaAsP InP semiconductor microcavity geometries for annular Bragg reflection, optical switching, and sensing

InGaAsP InP semiconductor microcavity geometries for annular Bragg reflection, optical switching, and sensing

... these cylindrical devices are confined by total internal reflection (TIR) at the curved interfaces be- tween a waveguide core composed of a high refractive index dielectric, and a low-index ...geometry, ...

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Triple-Band Dual-Polarized Hybrid Cylindrical Dielectric Resonator Antenna with Hybrid Modes Excitation

Triple-Band Dual-Polarized Hybrid Cylindrical Dielectric Resonator Antenna with Hybrid Modes Excitation

... In this article, we concentrate our study to achieve multiband and dual-polarization characteristics in hybrid CDRA (combination of CDRA and ring shape patch along with inverted L-strip). The preliminary phase of ...

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Estimation of Dielectric Constant for Various Standard Materials using Microstrip Ring Resonator

Estimation of Dielectric Constant for Various Standard Materials using Microstrip Ring Resonator

... Microstrip ring resonator (MRR) is known for dielectric constant determination and many studies used Teflon as a standard ...certain dielectric constant ...for dielectric constant ...

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Multi-Negative Index Band Metamaterial-Inspired Microfluidic Sensors

Multi-Negative Index Band Metamaterial-Inspired Microfluidic Sensors

... In recent years, an alternative sensing system, based on engineered materials or metamaterials (MTMs), MTM-inspired sensors [1–35], passive devices ranging from GHz to THz range, has been introduced for testing different ...

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Wideband Sierpinski Carpet Fractal Shaped Cylindrical Dielectric Resonator Antenna for X Band Application

Wideband Sierpinski Carpet Fractal Shaped Cylindrical Dielectric Resonator Antenna for X Band Application

... Dielectric resonator antennas (DRAs) have been sub- jected to many investigations since their introduction in 1983 ...for cylindrical DRA (CDRA) by Chair et ...

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High Gain Circularly-Polarized Dielectric Resonator Antenna Array with Helical Exciter

High Gain Circularly-Polarized Dielectric Resonator Antenna Array with Helical Exciter

... with thickness of 1.58 mm, loss tangent of 0.002 and dielectric constant of 4.4 has been taken for this design consideration. A power divider using a λ/4 transformer has been designed on the FR-4 substrate to feed ...

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Multi-Band Cylindrical Dielectric Resonator Antenna Using Permittivity Variation in Azimuth Direction

Multi-Band Cylindrical Dielectric Resonator Antenna Using Permittivity Variation in Azimuth Direction

... dual-band cylindrical DRA using varying permittivity in ϕ -direction fed by coaxial probe is proposed and ...the dielectric resonator (DR) over the desired ...

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Review Paper on Dual Band Dielectric Resonator Antenna for Wireless Application

Review Paper on Dual Band Dielectric Resonator Antenna for Wireless Application

... Dielectric Resonator Antenna has broad spectrum of dielectric materials to be used for intended ...of Dielectric Resonator ...low-loss dielectric material can be useful for high ...

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Equivalent Lumped-Element Circuit of Aperture and Mutually Coupled Cylindrical Dielectric Resonator Antenna Array

Equivalent Lumped-Element Circuit of Aperture and Mutually Coupled Cylindrical Dielectric Resonator Antenna Array

... In this paper, a lumped-element model of aperture and mutually coupled cylindrical DRA array at 5.0 GHz band is presented. In this electrical model, each array element is represented by its equivalent RLC circuit ...

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Circularly Polarized Cross-Slot-Coupled Stacked Dielectric Resonator Antenna for Wireless Applications

Circularly Polarized Cross-Slot-Coupled Stacked Dielectric Resonator Antenna for Wireless Applications

... stacked cylindrical dielectric resonator antenna with wide circular polarization (CP) bandwidth (axial ratio < 3dB) of ...permittivity dielectric (9.2) resonator on high permittivity ...

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Study of Hemi-Spherical Dielectric Resonator Antenna with Change in Dielectric Characteristics of Resonator

Study of Hemi-Spherical Dielectric Resonator Antenna with Change in Dielectric Characteristics of Resonator

... The radiation and frequency response vary widely depending upon the dielectric characteristics of the material used to construct the DRA. As the relative permittivity and permeability of the material constituting ...

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A Novel Hybrid Design of Printed Hemi-Cylindrical Dielectric Resonator Monopole Antenna with Multibands Operation

A Novel Hybrid Design of Printed Hemi-Cylindrical Dielectric Resonator Monopole Antenna with Multibands Operation

... figure that when two notches are not used, the matching of the antenna is entirely degraded. The optimal performance is obtained when both two notches and the square slit are employed, simultaneously. Moreover, it is ...

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Material Characterization Using Microwave Resonant Sensor

Material Characterization Using Microwave Resonant Sensor

... the dielectric properties of ...of dielectric materials using different resonance and transmission/reflection techniques such as coaxial line technique, CPW coplanar waveguide, cavity perturbation, parallel ...

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