Monopole Antenna Loaded by a Stepped-Radius Dielectric Ring Resonator for Ultrawide Bandwidth

Özzai̇m, Cengiz

doi:10.1109/lawp.2011.2163351

Cited by 22 publications

(16 citation statements)

References 8 publications

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“…In order to increase operational bandwidth, wire monopole antennas are loaded in different ways [2][3][4]. Dielectric loading [5][6][7][8][9][10][11][12][13][14] is one possibility for bandwidth enhancement. In some papers, dielectric loaded wire monopole antennas are called 'hybrid' antennas because they consist of two different radiators: a dielectric cylinder and a monopole.…”

Section: Introductionmentioning

confidence: 99%

Dielectric Loading for Bandwidth Enhancement of Ultra-Wide Band Wire Monopole Antenna

Živković

2012

PIER C

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Abstract-This work presents the results of numerical simulations and parametric studies of dielectric loaded wire monopole antenna, of which the main advantage is bandwidth enhancement. Introducing dielectric loading makes it possible to tune antenna to operate over a frequency range not covered with unloaded antenna, while maintaining an omnidirectional radiation pattern. The simulations are performed when loading is done with lossy as well as lossless dielectric and the results are compared. The observational frequency range is extended up to 40 GHz. In addition, the simulated results are compared with the measured S 11 of four fabricated antennas loaded with lossy dielectric and a good agreement is obtained.

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Section: Introductionmentioning

confidence: 99%

Dielectric Loading for Bandwidth Enhancement of Ultra-Wide Band Wire Monopole Antenna

Živković

2012

PIER C

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“…A quarter wavelength monopole antenna is loaded by a cylindrical dielectric ring resonator (CDRR) [6], double annular ring resonator [4], conical ring resonator with a band-notch function [7]. Then after a CDRR with stepped radius has been investigated with an impedance bandwidth of 110% [5]. Recently stacked conical ring DRA excited by a monopole for improved impedance bandwidth of 138% has been reported [3].In these above designs the monopole antenna behaves as a radiator as well as a feed to the DRA simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Three Stacked Conical Dielectric Resonator Antenna for Advanced Ultra Wideband Application

Biswal

Sahoo

Dash

2014

2014 International Conference on Information Technology

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In order to maneuver over the ultra wideband range, several structures have been investigated with increased impedance bandwidth. In this context a three stacked conical ring dielectric resonator antenna has been proposed to operate beyond the ultra wideband range. The proposed antenna offers a fractional bandwidth of 161% with a monopole type radiation pattern. The enhanced bandwidth is due to the resonance of the monopole antenna at about its each wavelength for which the stacked conical resonators are highly indispensable.

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“…They can maintain high radiation efficiency, even at millimeter-wave frequencies due to low surface wave losses and minimal conductor losses. Moreover, the remarkable broad and ultra wideband (UWB) features offered by DRAs make them as potential candidates for UWB systems [2][3][4][5][6][7][8][9]. The intensive investigations on UWB DRAs have been pursued and published.…”

Section: Introductionmentioning

confidence: 99%

“…The intensive investigations on UWB DRAs have been pursued and published. Using hybrid configurations, several monopole-DRAs have been studied, which are constructed by a vertical monopole antenna loaded with a ring-shaped dielectric resonator (DR) around in the horizontal plane [4][5][6][7][8]. Recently, a combination of broadband planar monopole and a rectangular DRA has been reported, which has a bandwidth from 3.06 to 10.6 GHz [9].…”

Section: Introductionmentioning

confidence: 99%

Integrated Ultra-Wideband Plannar Monopole With Cylindrical Dielectric Resonator Antennas

Wang

Shu²,

Denidni³

et al. 2013

PIER C

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Abstract-An ultra-wideband (UWB) planar monopole antenna integrated with a narrow-band (NB) cylindrical dielectric resonator antenna (DRA) is presented. The proposed antenna consists of a UWB monopole excited by a coplanar waveguide (CPW) transmission line, acting as a ground for a DRA excited by a slot. The mode HEM 11δ is excited in the NB DRA. To validate the concept of integration, an antenna is fabricated and measured. The measured results demonstrate that the UWB antenna provides a 2 : 1 voltage standing wave ratio (VSWR) bandwidth for 3.05-11 GHz, integrated with a dual-band NB antenna. Moreover, the two ports have the same polarization and a reasonable isolation (less than −10 dB) between each other. This is a promising candidate for applications in cognitive radio, where the UWB antenna can be used for spectrum sensing and the NB antenna for communication operation.

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Monopole Antenna Loaded by a Stepped-Radius Dielectric Ring Resonator for Ultrawide Bandwidth

Cited by 22 publications

References 8 publications

Dielectric Loading for Bandwidth Enhancement of Ultra-Wide Band Wire Monopole Antenna

Dielectric Loading for Bandwidth Enhancement of Ultra-Wide Band Wire Monopole Antenna

Three Stacked Conical Dielectric Resonator Antenna for Advanced Ultra Wideband Application

Integrated Ultra-Wideband Plannar Monopole With Cylindrical Dielectric Resonator Antennas

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