A Circularly Polarized Antenna by Using Rotated-Stair Dielectric Resonator

Wang, Kai Xu; Wong, Hang

doi:10.1109/lawp.2014.2385475

Cited by 114 publications

(66 citation statements)

References 10 publications

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“…Multi-segment DRA or stacked DRA has been proved to be an effective approach to broaden the impedance bandwidth [6][7][8][9]. It uses a combination of dielectric layers with different permittivities to function as a whole DRA.…”

Section: Introductionmentioning

confidence: 99%

A Low-Profile Stacked Dielectric Resonator Antenna With High-Gain and Wide Bandwidth

Pan

Zheng

2016

Antennas Wirel. Propag. Lett.

137

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A wideband, low profile and high gain dielectric resonator antenna is investigated in this paper. The antenna consists of two dielectric layers with different permittivities and it is centrally fed by a rectangular slot. By placing the dielectric layer of low permittivity (2.2) below that of high permittivity (15), the antenna with low profile of 0.1λ 0 can obtain a 10-dB impedance bandwidth of ~40% and an average gain of ~9 dBi.Index Terms-Dielectric resonator antenna, wideband antenna, low-profile antenna, high gain antenna.

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Section: Introductionmentioning

confidence: 99%

A Low-Profile Stacked Dielectric Resonator Antenna With High-Gain and Wide Bandwidth

Pan

Zheng

2016

Antennas Wirel. Propag. Lett.

137

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“…Another work of trapezoidal DRA, excited by a single 45° inclined slot fed by a micro strip feed line was helpful in achieving CP mode with AR bandwidth of 21.5% . Two rectangular dielectric layers are stacked with a rotation angle, relative to its bottom layer to get 18.2% 3‐dB AR bandwidth and average gain of 4.5 dBi are achieved. With unique feeding techniques five degenerative modes for CP is also possible to be created using cylindrical DRA …”

Section: Introductionmentioning

confidence: 99%

Wideband circularly polarized sectored conical dielectric resonator antenna excited by S‐shaped slot

Dash

Sahu

2018

Micro & Optical Tech Letters

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A conical sectored dielectric resonator antenna (DRA) loaded on S‐shaped slot square patch for wideband circular polarization is investigated. Wideband circular polarization (CP) is achieved by single tab extended at right top corner of the square patch along with the introduction of sectors on the top of DRA and S‐shaped slot on the patch. Calculated size of slot along with optimized height and size of DRA through parametric study helps to get wide impedance bandwidth. In addition, optimized size of single tab gives the wide axial ratio bandwidth. The −10 dB impedance bandwidth is 100.18% (2.1–6.0 GHz) and 3‐dB axial ratio (AR) bandwidth is 69.52% (3.0–6.2 GHz). The gain variation is around 3 dBi and radiation efficiency is around 80%–95% within the AR bandwidth. The proposed model is fabricated and measured which agree well with the simulated results.

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“…This problem can be solved by using dielectric resonator where loss can be reduced even at millimeter wave frequencies [8][9][10][11][12]. 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].…”

Section: Introductionmentioning

confidence: 99%

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 Circularly Polarized Antenna by Using Rotated-Stair Dielectric Resonator

Cited by 114 publications

References 10 publications

A Low-Profile Stacked Dielectric Resonator Antenna With High-Gain and Wide Bandwidth

A Low-Profile Stacked Dielectric Resonator Antenna With High-Gain and Wide Bandwidth

Wideband circularly polarized sectored conical dielectric resonator antenna excited by S‐shaped slot

Rectangular Dielectric Resonator Antenna Array for 28 GHZ Applications

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