Dielectric Resonator Antennas: A Historical Review and the Current State of the Art

Petosa, A.; Ittipiboon, A.

doi:10.1109/map.2010.5687510

Cited by 488 publications

(246 citation statements)

References 178 publications

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“…In cylindrical DRAs, Q-factor and the resonant frequency are determined by the radius to height ratio (i. e. aspect ratio of the antenna). While changing the aspect ratio of the Dielectric resonator Antenna, We can maintain the same resonant frequency (but not necessarily the same bandwidth) for a given dielectric constant [13].…”

Section: Parameters Dimension (Mm)mentioning

confidence: 99%

Design Investigation of a Laminated Waveguide Fed Multi-Band DRA for Military Applications

et al. 2017

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In this paper a laminated waveguide fed DR Antenna is investigated. It can use for moderate power military applications. Cylindrical DRA is excited by two closely spaced asymmetric longitudinal slots on the broad wall of the laminated cavity are responsible for producing three different frequency bands. Parametric study of slots has been done with the help of commercial software ANSOFT HFSS. All the bands have sharp rejection. The final model of the antenna is simulated, fabricated and experimentally measured. Measured results are in quite accordant with design results. SIW feeding structures have small losses, moderate power handling capacity, low costs, compact sizes and can be seamlessly integrated with planar circuits. At all the bands 9.76 GHz, 10.53 GHz and 11.8 GHz resonant frequency, the antenna shows 56 MHz, 160 MHz, and 250 MHz impedance bandwidth (for VSWR<2) with 6 dB,6.2 dB and 6.8 dB gain respectively. Simulated and measured results reveal outstanding performance with a cross-polar level of 29 dB lower than that of the co-polar level at 9.76 GHz, the cross-polar level of 32 dB lower than that of the co-polar level at 10.53, GHz, and similarly cross-polar level of 30 dB lower than that of the co-polar level at 11.8 GHz.

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Section: Parameters Dimension (Mm)mentioning

confidence: 99%

Design Investigation of a Laminated Waveguide Fed Multi-Band DRA for Military Applications

et al. 2017

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“…This approach is commonly used for coupling an antenna. The amount of coupling can be controlled by adjusting the S value [16]. The advantages of this feeding are easy fabrication, matching and convenient for DRA array [15].…”

Section: Single Rectangular Dielectric Resonator Antenna (Rdra) Withmentioning

confidence: 99%

“…The slot comes with various shapes. It can be ring, U shape, rectangle or any shapes [14,16]. However, in this design, a rectangular slot is used due to its simplicity.…”

Section: Single Rectangular Dielectric Resonator Antenna (Rdra) Withmentioning

confidence: 99%

“…With the introduction of ceramic material that comes with several attractive features in 1980s, Dielectric Resonator Antenna (DRA) has become an interesting candidate for 5G applications [13]. Other advantages of the DRA include its small size, light weight, flexible excitation, and relatively wide bandwidth compared with a microstrip antenna [14][15][16][17]. Studies in [18] show that the comparison between dielectric resonator antenna, and microstrip antenna performance at 35 GHz provides impedance bandwidth for microstrip antenna with only 2.6%; however, DRA achieves 6 times higher impedance bandwidth which is 15.6%.…”

Section: Introductionmentioning

confidence: 99%

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Rectangular Dielectric Resonator Antenna Array for 28 GHZ Applications

Nor¹,

Jamaluddin²,

Kamarudin³

et al. 2016

PIER C

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Abstract-In this paper, a Rectangular Dielectric Resonator Antenna (RDRA) with a modified feeding line is designed and investigated at 28 GHz. The modified feed line is designed to excite the DR with relative permittivity of 10 which contributes to a wide bandwidth operation. The proposed single RDRA has been fabricated and mounted on a RT/Duroid 5880 (ε r = 2.2 and tanδ = 0.0009) substrate. The optimized single element has been applied to array structure to improve the gain and achieve the required gain performance. The radiation pattern, impedance bandwidth and gain are simulated and measured accordingly. The number of elements and element spacing are studied for an optimum performance. The proposed antenna obtains a reflection coefficient response from 27.0 GHz to 29.1 GHz which cover the desired frequency band. This makes the proposed antenna achieve 2.1 GHz impedance bandwidth and gain of 12.1 dB. Thus, it has potential for millimeter wave and 5G applications.

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“…A dielectric resonator antenna (DRA) [4] is very interesting for millimeter wave wireless communications because of its favorable characteristics, such as dimensions, compact structure, low cost, high yield and the ability to support a multitude of excitation systems. Although DRA also has several drawbacks such as low gain and limited bandwidth, various gain enhancement methods of DRA have been reported such as using an antenna array [5], a superstrate structure [6], or using short horns around DRA [7].…”

Section: Introductionmentioning

confidence: 99%

A Novel Design Approach for a 60 GHZ Circularly Polarized Ebg Antenna

Elkarkraoui¹,

Hakem²,

Delisle³

et al. 2016

PIER C

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Abstract-This article focuses on the development of a high gain, broadband, circularly polarized Electromagnetic Band Gap (EBG) antenna operating at 60 GHz. The designed antenna is configured with a superstrate based on a frequency selective surface (FSS) placed in front of a cross dielectric resonator antenna (XDRA), installed into a ground plane, which acts as an excitation source. A fast Leaky-Wave approach based on transverse equivalent network (TEN) is used to deduce analytical radiation patterns formulas of the proposed antenna. The proposed analytical model was implemented and verified by a comparison with both numerical and experimental results. The reported results showed very satisfactory performances with an achievable impedance bandwidth (S 11 < −10 dB) of 11.7% from 56 to 63 GHz, an axial-ratio bandwidth (AR < 3 dB) of 5.4% from 58.9 to 62.1 GHz and a stable gain of 16.7 dBi within the passband. A good agreement among analytical, numerical and measured results is successfully achieved and falls well within initially set specifications.

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Dielectric Resonator Antennas: A Historical Review and the Current State of the Art

Cited by 488 publications

References 178 publications

Design Investigation of a Laminated Waveguide Fed Multi-Band DRA for Military Applications

Design Investigation of a Laminated Waveguide Fed Multi-Band DRA for Military Applications

Rectangular Dielectric Resonator Antenna Array for 28 GHZ Applications

A Novel Design Approach for a 60 GHZ Circularly Polarized Ebg Antenna

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