Novel Feeding Mechanism to Stimulate Triple Radiating Modes in Cylindrical Dielectric Resonator Antenna

Sharma, Anand; Das, Gourab; Ranjan, Pinku; Sahu, Nikesh Kumar; Gangwar, Ravi Kumar

doi:10.1109/access.2016.2633361

Cited by 34 publications

(20 citation statements)

References 10 publications

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“…The suppression of surface wave by electromagnetic bandgap (EBG) technique has also been found productive for gain improvement up to ∼8 dBi . Excitation of different higher order modes for exhibiting high gain, like TE δ15 for ∼ 10 dBi, HEM 12δ for 8 dBi, for 10.3, for 7.5 dBi, for 8.5 dBi . The feeding techniques used for revealing these modes are quite significant.…”

Section: Introductionmentioning

confidence: 99%

“…However, from above techniques, the superstrate and reflector techniques are quite adept, as they have the potential to improve the radiation characteristics without much affecting DR/substrate geometry and other performances. But the investigations on these techniques are quite limited, which need to be extended further.…”

Section: Introductionmentioning

confidence: 99%

“…In view of those above findings, here an experimental analysis is done in DRA, which reveals that, the combined effect of superstrate and reflector is quite better than their individual effect. The fringe characteristics of this developed geometry can be considered as; (i) wide impedance matching up to 1 GHz (ie, 12.65% BW), (ii) peak gain of >11.25 dBi, (iii) comparatively compact radiator than (also not array like), (iv) introduction of light weight dielectric superstrate and reflector as well as hybrid combination of both, (v) economic fabrication and maintenance less structure. The organization of this article is done as follows: sections 2 and 3 describe the antenna configuration and design flow, respectively.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Wideband high gain conical dielectric resonator antenna: An experimental study of superstrate and reflector

Dash

Khan

2017

Int J RF Microw Comput Aided Eng

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A physically feasible new hybrid geometry for gain improvement with wideband characteristics is designed and validated experimentally in a conical shaped dielectric resonator antenna (DRA). It comprises of one superstrate and one reflector, with simple slot coupling technique for excitation. The reflector beneath the ground plane mainly accountable for significant gain improvement (∼109%) by reducing the back radiation, whereas the superstrate dedicates for maintaining wideband (12.65%). The demonstrated result shows S11 < −10 dB band between 7.4 GHz and 8.4 GHz, with 11.25 dBi peak gain, which are well matched with their simulated counter parts. It also gives high co‐pol to cross‐pol difference (∼40 dB) in broadside direction. This new geometry can be eligible for X‐band applications as well can usher the DRA researchers for further innovations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Wideband high gain conical dielectric resonator antenna: An experimental study of superstrate and reflector

Dash

Khan

2017

Int J RF Microw Comput Aided Eng

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“…It is quite difficult to generate these hybrid modes

(|, {H E M}_{11 δ} normala normaln normald {H E M}_{12 δ} normalm normalo normald normale)

in CDRA simultaneously. It is due the fact that feeding mechanism of CDRA must behave like magnetic dipole and electric dipole for

{H E M}_{11 δ} normala normaln normald {H E M}_{12 δ} normalm normalo normald normale

generation, respectively . Second, if one can able to generate both hybrid modes (

{H E M}_{11 δ} normala normaln normald {H E M}_{12 δ} normalm normalo normald normale

) simultaneously, then disturbance in feeding mechanism (ie, interference between electric and magnetic dipole) creates another hybrid mode (

{H E M}_{21 δ} normalm normalo normald normale

).…”

Section: Introductionmentioning

confidence: 99%

Tri-band composite cylindrical dielectric resonator antenna with hybrid mode excitation and cross-polarization suppression

Sharma

Gangwar

2017

Int J RF Microw Comput Aided Eng

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This communication investigates composite cylindrical dielectric resonator antenna (CDRA) for various wireless applications. Three important features of proposed antenna design are (i) realization of two different hybrid modes, that is, HEM11δ and HEM12δ mode in CDRA with the help of modified annular ring printed line (work as both magnetic dipole and electric dipole), both the hybrid modes support broadside radiation characteristics (ii) suppression of HEM21δ mode, in order to reduce the cross‐polarization level in H‐plane of other hybrid modes (HEM11δ and HEM12δ mode) by an amount of 8‐10 dB (iii) creation of triple‐band attribute using the concept of composite antenna. The proposed antenna design has been fabricated and practically tested. Simulated outcomes show good agreement with measured outcomes. It works in three frequency bands, that is, 2.25‐2.79 GHz, 3.1‐4.0 GHz, and 5.05‐5.6 GHz. The designed antenna structure is appropriate for WLAN and WiMAX applications.

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“…There are three important techniques available in literature for obtaining multiband characteristics in DRA. The first and an important technique is the usage of different exciting methods such as coaxial probe, psishaped (ψ) microstrip line, and circular patch along with annular ring shape microstrip line [5][6][7]. The second technique is related to the shape of DRAs.…”

Section: Introductionmentioning

confidence: 99%

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

Pathak¹,

Sharma²,

Kushwah³

2017

PIER M

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Abstract-In this article, design and analysis of a dual-band ring dielectric resonator based radiator with circular polarization features is explored. The presented ring DRA is excited with the help of a tilted modified square-shaped aperture. Two important attractive features of the present article are: (i) two radiating modes originated inside the ring DRA, i.e., HEM 11δ and HEM 12δ mode; (ii) tilted modified square aperture generates circular polarized (CP) wave in both the operating frequency bands. For verifying the simulated results, practical model of the proposed antenna has been fabricated and verified. Experimental outcomes display that the proposed radiator functions over dual frequency bands, i.e., 2.8-3.58 GHz and 5.5-5.92 GHz respectively. 3-dB axial ratio (AR) frequency ranges of the proposed radiator are 2.8-3.2 GHz and 5.85-6.0 GHz, respectively. These appearances make it appropriate for some important wireless applications such as wireless LAN (2.4/5.2 GHz) and WiMAX (2.5 GHz) applications.

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Novel Feeding Mechanism to Stimulate Triple Radiating Modes in Cylindrical Dielectric Resonator Antenna

Cited by 34 publications

References 10 publications

Wideband high gain conical dielectric resonator antenna: An experimental study of superstrate and reflector

Wideband high gain conical dielectric resonator antenna: An experimental study of superstrate and reflector

Tri-band composite cylindrical dielectric resonator antenna with hybrid mode excitation and cross-polarization suppression

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

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