Compact wideband multi-layer cylindrical dielectric resonator antennas

Huang, Wei; Kishk, Ahmed A.

doi:10.1049/iet-map:20070028

Cited by 75 publications

(44 citation statements)

References 9 publications

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“…[3,4] Various efforts on DRAs have been reported to achieve wideband operation such as introducing an air gap between the DRA and ground plane, [5] multilayer stacking of dielectric materials, [6] fractal approach on DRA. [7] Using the advantage of DR structure, flexibility of various geometries of RDRAs such as L-shaped, [8] T-shaped, [9] H-shaped, [10] Z-shaped, [11] and X-shaped [12] have also been proposed for bandwidth enhancement for broadside radiation.…”

Section: Introductionmentioning

confidence: 99%

Linearly polarized asymmetric dielectric resonator antenna for 5.2-GHz WLAN applications

Kumar

Gupta

2015

Journal of Electromagnetic Waves and Applications

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A rectangular shape of asymmetric dielectric resonator antenna (DRA) excited by a coaxial probe is proposed and investigated. The asymmetric DRA geometry can offer an impedance bandwidth up to 51% for |S 11 | < −10 dB from 4.1 to 6.7 GHz. The antenna covers most of the wireless systems like 5.2, 5.5, and 5.8 GHz WLAN/ Wi-MAX applications. The experimentally measured result shows that the efficiency is above 90% for the bandwidth of operation. The simulated and measured radiation patterns are consistent throughout the operational bandwidth. The measured peak gain over the band is 8.2 dBi. It is also observed that the newly proposed configuration reduces the DRA volume by 26% as compared to conventional rectangular DRA, with compact volume of 8.24 cm 3 . Good match between the measured and simulated results has been obtained.

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Section: Introductionmentioning

confidence: 99%

Linearly polarized asymmetric dielectric resonator antenna for 5.2-GHz WLAN applications

Kumar

Gupta

2015

Journal of Electromagnetic Waves and Applications

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“…The bandwidth of DRAs is also limited for single mode operation and this bandwidth is not sufficient for high-rate data transmission in wireless communication systems. Recently, various bandwidth enhancement techniques have been developed for DRAs, such as hybrid DRA [10], shaped DRA [11] or stacked DRA [12,13]. EBG antenna made from metamaterial superstrate is characterized by a high gain and low impedance bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Broadband 60-GHZ Double Negative Metamaterial High Gain Antenna

Elkarkraoui¹,

Delisle²,

Hakem³

et al. 2015

PIER C

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Abstract-This paper proposes a double negative metamaterial surface as a superstrate for a multilayer cylindrical dielectric resonator antenna (MCDRA). The aim is to achieve a broadband and high gain Electromagnetic Band Gap (EBG) antenna that can be used in harsh propagation areas to satisfy all the requirements for the 60 GHz wireless communications offering a bandwidth of 7 GHz in the unlicensed ISM band (57-65 GHz), permitting to reach data rates of 10 Gbit/s and more. To meet these objectives various techniques are combined. Numerical and experimental results showed satisfactory performances with achievable impedance bandwidth of more than 10.5% (from 58.1 to 64.2 GHz) and a 18 dBi gain, an enhancement of 13 dBi compared to a homogenous DRA without metamaterial superstrate. The proposed antenna exhibits directive and stable radiation pattern in the entire operating band.

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“…In recent years, various methods have been investigated to broaden the bandwidth of the DRAs [6][7][8][9][10][11][12][13][14][15][16][17][18]. Using a stair-shaped DRA is one of the ways to achieve a wide impedance bandwidth (S 11 < −10 dB) [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Wideband One-Step Stair-Shaped Dielectric Resonator Antennas

Zou¹,

Pan²,

Zuo³

et al. 2013

PIER Letters

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Abstract-The one-step stair-shaped dielectric resonator antennas (DRAs) with a circular cross-section are studied theoretically and experimentally in this paper. The reasons why the one-step stairshaped DRAs have a wideband performance have been investigated. It is shown in this paper that the modes excited in the one-step stairshaped DRA with circular cross-section can be regarded as pseudo HEM 111 and pseudo HEM 113 modes. The pseudo HEM 111 /HEM 113 mode exhibits similar radiation patterns but a different resonant frequency and radiation Q factor to the HEM 111 /HEM 113 mode of the cylindrical DRA. By properly choosing the dimensions of the one-step stair-shaped DRA, the two modes can be used to obtain a wideband antenna.

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Compact wideband multi-layer cylindrical dielectric resonator antennas

Cited by 75 publications

References 9 publications

Linearly polarized asymmetric dielectric resonator antenna for 5.2-GHz WLAN applications

Linearly polarized asymmetric dielectric resonator antenna for 5.2-GHz WLAN applications

Hybrid Broadband 60-GHZ Double Negative Metamaterial High Gain Antenna

Investigation of Wideband One-Step Stair-Shaped Dielectric Resonator Antennas

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