A monopole type Sierpinski carpet fractal patterned rectangular dielectric resonator antenna for UWB application

Soren, Dipali; Mishra, Rabindra Kishore; Ghatak, Rowdra; Поддар, Д. Р.

doi:10.1109/indianaw.2011.6264919

Cited by 8 publications

(12 citation statements)

References 17 publications

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“…Fractal DRA (FDRA) for wireless application is also reported by Gangwar et al in [9]. Mode merging to achieve wideband by introducing fractal in DRA was reported in [10]. Thamae and Wu proposed broadband DRA by using shape deformation with low permittivity resonator [11].…”

Section: Introductionmentioning

confidence: 88%

Investigations on modified rectangular fractal curve shaped dielectric resonator antenna

Ghatak

Soren

Mishra

et al. 2012

Int J RF and Microwave Comp Aid Eng

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In this article, a modified fractal rectangular curve (FRC)-shaped dielectric resonator antennas (DRA) with two different functionalities is reported. These antennas are split in the middle into two halves and are excited by a coaxial probe. In first configuration, the fractal geometry is used to achieve wide bandwidth from 3.5 to 5.0 GHz covering the body area network frequencies as well as the IEEE 802.11a WLAN frequencies. The average peak gain within the band is about 7 dBi. The second investigation involves miniaturization of rectangular DRA by using FRC along the cross-sectional boundary. By this, a DRA at 3.2 GHz could be realized using second iteration of modified rectangular curve fractal geometry resulting in a 50% size reduction by maintaining same radiation characteristics. V C 2012Wiley Periodicals, Inc. Int J RF and Microwave CAE 00:000-000, 2012.

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Section: Introductionmentioning

confidence: 88%

Investigations on modified rectangular fractal curve shaped dielectric resonator antenna

Ghatak

Soren

Mishra

et al. 2012

Int J RF and Microwave Comp Aid Eng

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“…In 2009, Karmakar et al , have implemented the Sierpinski fractal concept in a cylindrical DRA for achieving 50% (covering X‐band) impedance bandwidth. Again, the same fractal concept has been used by Soren et al on a rectangular DRA to achieve 87.86% impedance bandwidth with 4.6 dBi gain. Dhar et al , have done Minkowski boundary fractal along with CPW‐feeding loop slot to improve the impedance bandwidth up to 64% with 2.5 to 4.9 dBi gain.…”

Section: Dra Research On Bandwidthmentioning

confidence: 99%

“…Broadly, these approaches can be divided into four categories; firstly, according to the antenna geometry (DR shape/fractal/EBG/metamaterial), secondly, the coupling mechanism (feeding type/aperture shape), thirdly, the DR permittivity, and lastly, according to the excitation of specific mode. From ease of readers' point of view, these techniques are discussed separately for single‐band, dual‐band, and multi‐band,, respectively. Moreover, some other characteristics say radiation/notch…”

Section: Dra Research On Bandwidthmentioning

confidence: 99%

“…During this reviewing process, it has been noticed that, the researchers have reported bandwidth improvement by means of DR shape modification, incorporation of EBG/metamaterial, or fractal …”

Section: Dra Research On Bandwidthmentioning

confidence: 99%

“…However, proper attention is needed in finding the critical iteration point for optimum result. Different types of fractals namely Sierpinski, Minkowski, Apollonian Gasket, and so on have been reported in literature in context of DRA as shown in Figure .…”

Section: Dra Research On Bandwidthmentioning

confidence: 99%

See 2 more Smart Citations

Recent developments in bandwidth improvement of dielectric resonator antennas

Dash

Khan

2019

Int J RF Microw Comput Aided Eng

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This article shows a compressed chronological overview of dielectric resonator antennas (DRAs) emphasizing the developments targeting to bandwidth performance characteristics in last three and half decades. The research articles available in open literature give strong information about the innovation and rapid developments of DRAs since 1980s. The sole intention of this review article is to, (a) highlight the novel researchers and to analyze their effective and innovative research carried out on DRA for the furtherance of its performance in terms of only bandwidth and bandwidth with other characteristics, (b) give a practical prediction of future of DRA as per the past and current state-of-art condition, and (c) provide a conceptual support to the antenna modelers for further innovations as well as miniaturization of the existing ones. In addition some of the significant observations made during the review can be noted as follows; (a) hybrid shape DRAs with Sierpinski and Minkowski fractal DRAs seems comfortable in obtaining wideband as well as multiband, (b) combination of multiple resonant modes (preferably lower modes) can lead to wider impedance bandwidth, (c) at proper matching wider patch with slotted dielectric resonator can exhibit better bandwidth.

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Ultra wideband (UWB) dielectric resonator antenna using fractal‐inspired feeding mechanism

Huda¹,

Saha

Karmakar

2023

Int J Communication

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Summary This article examines a compact dielectric resonator antenna (DRA) for UWB applications. Here a composite feeding structure excites a dielectric resonator which in tern provides the resonant modes TE111, TE121, TE212, and TE222. The dielectric resonator (DR), built of alumina ceramic (εr, DR = 9.8), is mounted on a fractal triangular patch, inspired by Sierpinski Gasket. The suggested DRA is supported by a FR4 substrate (εr, sub = 4.4) and measures compactly 40 × 30 × 8.5 mm3. To confirm the results of its simulations, the proposed antenna's prototype is prepared and measured up to the second iteration. The measured outcome demonstrates that the suggested antenna has a frequency range of 3.38–10.71 GHz (104%) for S11 < −10 dB and provides a maximum gain of 7.23 dBi at 8 GHz along with highest possible simulated efficiency of 98%. The suggested DRA is appropriate for small‐range future 4G/5G UWB wireless multimedia applications due to its ultrawide bandwidth, excellent gain, reasonable efficiency, omnidirectional radiation features, and compact construction. This DRA is also suitable for repeaters of mobile and vehicular communications.

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A monopole type Sierpinski carpet fractal patterned rectangular dielectric resonator antenna for UWB application

Cited by 8 publications

References 17 publications

Investigations on modified rectangular fractal curve shaped dielectric resonator antenna

Investigations on modified rectangular fractal curve shaped dielectric resonator antenna

Recent developments in bandwidth improvement of dielectric resonator antennas

Ultra wideband (UWB) dielectric resonator antenna using fractal‐inspired feeding mechanism

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