Mutual coupling between cylindrical probe-fed dielectric resonator antennas

Dorris, R.J.; Long, Rui; Long, Stuart A.; Khayat, M.A.; Williams, J.T.

doi:10.1109/lawp.2002.802575

Cited by 17 publications

(10 citation statements)

References 5 publications

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“…Chow and Faggetter have determined mutual coupling between the antenna elements of a DRA array. The mutual coupling between two cylindrical probe‐fed DRA has been measured in both the E‐ and H‐planes by varying separation between them by Dorris et al Chair et al have studied the mutual coupling characteristic between two probe fed CDRAs and found two resonant modes by reducing radius to height ratio and resulted 26.8% impedance bandwidth. Guha et al have demonstrated the use of a simple ring‐shaped DGS (defected ground structure) experimentally to suppress considerable mutual coupling between two cylindrical DRs.…”

Section: Dras Research Related To Mutual Couplingmentioning

confidence: 99%

A state-of-art review on performance improvement of dielectric resonator antennas

Dash

Khan

Antar

2018

Int J RF Microw Comput Aided Eng

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This article outlines a compressive review on investigation carried out targeting to gain, circular polarization (CP), and mutual coupling reduction in dielectric resonator antenna (DRA). The DRA has already been created a separate position in antenna engineering domain because of its adept characteristics, such as wide bandwidth, high efficiency, low‐loss, and mainly 3D‐design flexibility which is rarely available in conventional antennas. In this context, the research on gain, circular polarization, and mutual coupling are quite interesting and being carried out from the last two decades. The ultimate aim of this article is to (i) give an overview of different techniques adopted in context to gain, CP, and mutual coupling reduction; (ii) give a compressive review of notable research carried out targeting to these three characteristics; and (iii) find out the research gap concentration for furtherance of the same.

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Section: Dras Research Related To Mutual Couplingmentioning

confidence: 99%

A state-of-art review on performance improvement of dielectric resonator antennas

Dash

Khan

Antar

2018

Int J RF Microw Comput Aided Eng

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“…MC between dielectric resonator antenna (DRAs) have been studied in the past by some researchers [7][8][9]. The MC between two hemispherical DRAs (H-DRAs) has been analyzed theoretically in [7] by Luk et al It has been shown in this context that the mutual coupling (∼−12.5 dB for ∼0.4 free space wavelength) is significant and should be taken into account when designing an array of H-DRAs.…”

Section: Introductionmentioning

confidence: 99%

Mutual Coupling Between a Pair of Identical Beam Steering Dielectric Resonator Antennas

Fayad¹,

Record²

2009

PIER B

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Abstract-A comparative study using numerical models on the mutual coupling (MC) between two different heterogeneous beam steering dielectric resonator antennas (DRAs) and an omni-directional dielectric resonator antenna (DRA) is presented in this paper. The mutual coupling was investigated by varying the separation between the antennas and manipulating the far field radiation pattern of each antenna. Several arrangements with element separation ranging from 0.1 to 0.5 free space wave length were investigated at the design frequency of 10 GHz. Different configurations contributed to different isolation levels. It was found that a significant isolation (< −15 dB) between an array of heterogeneous DRAs can be obtained even with antennas placed in close proximity (0.1 free space wavelength separation). It was also shown that the resonant frequency and return loss are most affected at settings where the direction of the main lobe of antenna A overlaps with the direction of the main lobe of antenna B. The expected inverse proportionality between 'd' (the separation between two antennas) and the level of MC was also demonstrated.

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“…This requires low mutual coupling between the elements. It is reported in [20][21][22] that the dielectric resonator antenna (DRA) provides lower mutual coupling levels. However, further mutual coupling reduction is required.In this effort, a great deal of work has been reported to date on reducing the mutual coupling between antennas including application of (i) parasitic elements [4] [5], (ii) EBG structures [6] - [12], and (iii) metamaterial-based resonators [13] - [16].…”

Section: Introductionmentioning

confidence: 99%

Mutual Coupling Reduction in Dielectric Resonator Antennas Using Metasurface Shield for 60-GHz MIMO Systems

Dadgarpour

Zarghooni

Virdee

et al. 2017

Antennas Wirel. Propag. Lett.

130

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Abstract-An effective technique for reducing the mutual coupling between two Dielectric Resonator Antennas (DRA) operating at 60 GHz bands is presented. This is achieved by incorporating a metasurface between the two DRAs, which are arranged in the Hplane. The metasurface comprises an array of unique split-ring resonator (SRR) cells that are integrated along the E-plane. The SRR configuration is designed to provide band-stop functionality within the antenna bandwidth. By loading the DRA with 1×7 array of SRR unit cells, a 28 dB reduction in the mutual coupling level is achieved without compromising the antenna performance. The measured isolation of the prototype antenna varies from -30 to -46.5 dB over 59.3-64.8 GHz. The corresponding reflection coefficient of the DRA is better than -10 dB over 56.6-64.8 GHz.

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Mutual coupling between cylindrical probe-fed dielectric resonator antennas

Cited by 17 publications

References 5 publications

A state-of-art review on performance improvement of dielectric resonator antennas

A state-of-art review on performance improvement of dielectric resonator antennas

Mutual Coupling Between a Pair of Identical Beam Steering Dielectric Resonator Antennas

Mutual Coupling Reduction in Dielectric Resonator Antennas Using Metasurface Shield for 60-GHz MIMO Systems

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