Investigations on Wideband Cylindrical Dielectric Resonator Antenna With Directive Radiation Patterns and Low Cross Polarization

Singh, Abhishek; Sharma, Satish K.

doi:10.1109/tap.2010.2044330

Cited by 25 publications

(11 citation statements)

References 16 publications

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“…In literature, in‐addition to only‐bandwidth analysis some researchers have also pointed out some other important characteristics (far‐field characteristics) and notch . These are discussed here.…”

Section: Dra Research On Bandwidthmentioning

confidence: 94%

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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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Section: Dra Research On Bandwidthmentioning

confidence: 94%

“…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 are also discussed in the preceding part of this section. The organization of this section is summarized in Figure .…”

Section: Dra Research On Bandwidthmentioning

confidence: 99%

Recent developments in bandwidth improvement of dielectric resonator antennas

Dash

Khan

2019

Int J RF Microw Comput Aided Eng

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“…Significant research work has been done on coaxial probe fed cylindrical DRAs [2] which offer relatively wider bandwidth. In Ref 3,. a differential probe‐fed DRA is presented which offers directional patterns over wide bandwidth with low cross‐polarization.…”

Section: Introductionmentioning

confidence: 99%

Aperture‐coupled pentagon shape dielectric resonator antennas providing wideband and multiband performance

Sharma

Brar

2012

Micro & Optical Tech Letters

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The aperture‐coupled regular and irregular pentagon‐shaped dielectric resonator antennas (DRAs) are presented providing wideband and multiband performances. The regular and irregular pentagon shape DRAs show wideband impedance matching (S11 = −10 dB) bandwidth of 42% (from 2.55 to 3.9 GHz) and 45.8% (from 2.57 to 4.1 GHz), respectively. Further, the irregular pentagon shape DRA also shows triple bands: 2.42–2.61 GHz (Band 1), 3.15–4.05 GHz (Band 2) and 5–5.65 GHz (Band 3) with a percentage matching bandwidths of 7.55, 23.77, and 12.2%, respectively. These DRAs offer acceptable directional radiation patterns for both wideband and multiband performances. Prototype of the regular pentagon shape DRA has been fabricated and experimentally verified for both the matching bandwidth and radiation performance. The simulated and measured results are in very good agreement. These DRAs can find applications in wireless communications devices such as base stations. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:395–400, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27338

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“…The enhanced radiation characteristics of a cylindrical DRA are presented by A. Singh and Satish K.Sharma [11] by employing the dual coaxial probes in the differential feed arrangement. The DRA offers an impedance bandwidth of 68% and broadside radiation patterns with good gain and low cross-polarization levels.…”

Section: Introductionmentioning

confidence: 99%