Dielectric Resonator Antennas: Basic Concepts, Design Guidelines, and Recent Developments at Millimeter-Wave Frequencies

Keyrouz, Shady; Caratelli, Diego

doi:10.1155/2016/6075680

Cited by 210 publications

(98 citation statements)

References 61 publications

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“…So different techniques have been proposed to enhance the gain as per the requirement. For ease of classification, the available literature is divided into two categories: only gain improvement and simultaneous gain and bandwidth improvement . The categories are described here.…”

Section: Dras Research On Gain Improvementmentioning

confidence: 99%

“…As per literature, the DR‐antenna shape has much impact on controlling the far‐field gain. First, the shape of the DR has been found to be playing crucial role in enhancing the antenna gain. Next, multiple stacking generates more radiation from side walls of the DR than top side enabling high gain in end‐fire direction.…”

Section: Dras Research On Gain Improvementmentioning

confidence: 99%

“…In previous section, different techniques have been described for gain improvement. The research on simultaneous gain and bandwidth improvement is also quite interesting which is summarized here .…”

Section: Dras Research On Gain Improvementmentioning

confidence: 99%

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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 On Gain Improvementmentioning

confidence: 99%

Section: Dras Research On Gain Improvementmentioning

confidence: 99%

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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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“…Dielectric resonator antennas (DRAs) have received widespread attention because of a number of advantages such as small size, high radiation efficiency, wider impedance bandwidth, low conductor loss, no excitation of surface waves, easy of excitation, and so on [1,2]. These advantages make DRAs excellent candidates for wireless communication systems, especially the ones operated in the millimeter-wave band [3].…”

Section: Introductionmentioning

confidence: 99%

A Series-Fed Linear Substrate-Integrated Dielectric Resonator Antenna Array for Millimeter-Wave Applications

Gong

et al. 2018

International Journal of Antennas and Propagation

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A series-fed linear substrate-integrated dielectric resonator antenna array (SIDRAA) is presented for millimeter-wave applications, in which the substrate-integrated dielectric resonator antenna (SIDRA) elements and the feeding structure can be codesigned and fabricated using the same planar process. A prototype 4 × 1 SIDRAA is designed at Ka-band and fabricated with a two-layer printed circuit board (PCB) technology. Four SIDRAs are implemented in the Rogers RT6010 substrate using the perforation technique and fed by a compact substrate-integrated waveguide (SIW) through four longitudinal coupling slots within the Rogers RT5880 substrate. The return loss, radiation patterns, and antenna gain were experimentally studied, and good agreement between the measured and simulated results is observed. The SIDRAA example provides a bandwidth of about 10% around 34.5 GHz for 10 dB return loss and stable broadside radiation patterns with the peak gain of 10.5-11.5 dBi across the band.

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“…Due to their high radiation efficiency, low loss, broad bandwidth, compact size, flexible and diverse feed mechanism, dielectric resonators has been extensively studied in the past two decades. Various feed mechanisms can be used to excite the radiating modes of the dielectric resonator antennas (DRAs), including the use of a coaxial probe, microstrip line, slot coplanar waveguide . However, different feed mechanisms may result in different impedance bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Rectangular Dielectric Resonator Antenna Fed by Graphene Films Microstrip for 5G Communication

Xia

Zhou

Zhang

et al. 2018

2018 IEEE International Conference on Computational Electromagnetics (ICCEM)

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In this paper, rectangular dielectric resonator antennas (RDRAs) fed by offset tapered copper and graphene microstrip lines are presented. A comparison between these two feeding materials is made with an aim of using the high‐conductivity graphene film (HCGF) to replace copper for feeding the RDRA if feasible. Four feed forms have been discussed. The presented feed mechanism is able to couple electromagnetic energy in three different modes of the RDRA. The HCGF is utilized to replace copper for feeding the RDRA. An impedance bandwidth of 11.32% (3.25 GHz ~ 3.64 GHz) is realized in the experiments by using a graphene feed line, compared to that of 12.24% (3.22 GHz ~ 3.64 GHz) for copper, and a peak gain of 4.48dBi is obtained at the center frequency. The results show that the HCGF can be used to couple the RDRA, and the HCGF fed RDRA has good performance. Radiation patterns around the center frequency are also presented.

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Dielectric Resonator Antennas: Basic Concepts, Design Guidelines, and Recent Developments at Millimeter-Wave Frequencies

Cited by 210 publications

References 61 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

A Series-Fed Linear Substrate-Integrated Dielectric Resonator Antenna Array for Millimeter-Wave Applications

Rectangular Dielectric Resonator Antenna Fed by Graphene Films Microstrip for 5G Communication

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