Wideband circularly polarized low profile dielectric resonator antenna with meta superstrate for high gain

Chauhan, Monika; Rajput, Anil; Mukherjee, Biswajeet

doi:10.1016/j.aeue.2020.153524

Cited by 16 publications

(11 citation statements)

References 22 publications

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“…The slot antenna schemes are usually implemented by a coplanar waveguide (CPW) feed and a microstrip topology. In Chauhan et al 4 and Dehnavi et al 5 structures of these designs are introduced Butler matrix is the most cost-effective approach for extending intelligent antennas systems. [6][7][8] If the design of the feeding network was in a way that four orthogonal phases, that is, 0°, 90°, 180°, and 270°, were achieved CP property increases dramatically.…”

Section: Introductionmentioning

confidence: 99%

C‐band high purity circularly polarized array with modified radial slots and electromagnetic band‐gap substrate configuration

Sedghi

Aribi

Lou

2022

Micro & Optical Tech Letters

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Novel broadband circularly polarized (CP) electromagnetic band-gap (EBG) antenna array was proposed in this paper. The antenna's radiating element is utilized by a microstrip-fed circular patch, radial slot, and three rectangular notches. The proposed antenna elements are fed by feeding network comprised form four hybrid couplers and microstrip lines with appropriate lengths to support desired phase difference at output ports. Radiating patches are sequentially rotated to enhance CP property and form a 4 × 4 array.Finally, the novel scheme of electromagnetic structure (EBG) was inserted among radiating elements to decrease the mutual coupling. Using these structures results in the improvement of antenna bandwidth to cover the entire C-band. In addition, CP purity is increased at the implicational band.Measured results indicate that the array has an impedance bandwidth of 4 GHz covering the C-band totally and 3 dB axial-ratio bandwidth of 2.6 GHz that is between 4.9 and 7.5 GHz (~42%). The antenna array has a peak gain of 8dBi at 6 GHz.

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Section: Introductionmentioning

confidence: 99%

C‐band high purity circularly polarized array with modified radial slots and electromagnetic band‐gap substrate configuration

Sedghi

Aribi

Lou

2022

Micro & Optical Tech Letters

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“…DRAs gained interest due to their ability to provide wide bandwidth, enhanced gain characterizes by compact structure [5,6]. The various shaped single element and array geometries are reported in the literature [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…An aperture coupling type excitation has been used and gives an impedance bandwidth of 7.69%. Recently, Chauhan et al [21] reported the meta superstratebased high gain and low profile circularly polarized DRA for wideband applications. Also, split-ring resonators are used to enhance the 3-dB axial ratio and impedance bandwidth of the geometry.…”

Section: Introductionmentioning

confidence: 99%

A Low-profile 4-element Circularly Polarized Hexagonal DRA Array for Triple-band Wireless Applications

Vahora

Pandya

2022

AEM

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This paper presents a triple-band low-profile circularly polarized (CP) hexagonal dielectric resonator antenna (HDRA) array for various wireless applications. A 4-element linear array is designed using a simple microstrip power divider to improve the performance of the HDRA. This HDRA excites TEd01 mode at a first resonant frequency of 1.52 GHz. The proposed design operates in three frequency bands, i.e. 1.44 - 1.61 GHz, 2.95 - 3.27 GHz, and 4.00 - 4.84 GHz with the fractional bandwidth of 10.98%,11.02% and 22.20%, respectively. It also provides good gain and more than 70% of radiation efficiency with a better radiation pattern at all the resonating points. Further, it has a CP bandwidth of 50 MHz and 650 MHz around 3.12 GHz and 4.25 GHz, respectively. The proposed HDRA array is suitable for different wireless applications such as GPS (1 - 2 GHz), WiMAX (2 - 4 GHz), and WLAN (4 - 8 GHz).

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“…Although increasing antenna aperture size is a proposed method in literatures to enhance the antennas' gain, the downside is decreased coverage areas and bandwidth [4][5][6][7][8][9][10]. To overcome the above-mentioned problems, beam-steering feed network is used with antennas which are capable to support high gain and CP property over the wide range is a good candidate [11][12][13][14][15][16][17][18][19]. Among different types of beam-switching feed networks, Butler matrix with mild intricacy and best performance is a prominent choice.…”

Section: Introductionmentioning

confidence: 99%

High gain and circularly polarized beam-switching 8 × 8 Vivaldi antenna array for X-band application

Aribi

Sedghi

Lou

2022

Int. J. Microw. Wireless Technol.

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An 8 × 8 butler Vivaldi beam-steering antenna array is introduced for X-band application. Circularly polarized array is made of eight Vivaldi elements with 1×8 platform and an 8×8 beam feeding network. Vivaldi radiating element is used in array form to enhance impedance bandwidth and overall efficiency such as gain. Using microwave passive components, for instance, 3 dB branch line couplers and crossover help to have orthogonal modes for feeding each of the elements, hence circular polarization property is achieved. Extracted results show that the array has an impedance bandwidth over 7–12.7 GHz (~58%) for VSWR≤2 and an axial-ratio bandwidth of 3.15 GHz that is between 8.15 and 11.3 GHz (~33%). The peak gain of antenna array is 18 dBi at 10 GHz. The proposed beam-steering antenna with compact size and good operation is capable to cover an angle range from −42 to 55 degree in whole operation frequency.

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Wideband circularly polarized low profile dielectric resonator antenna with meta superstrate for high gain

Cited by 16 publications

References 22 publications

C‐band high purity circularly polarized array with modified radial slots and electromagnetic band‐gap substrate configuration

C‐band high purity circularly polarized array with modified radial slots and electromagnetic band‐gap substrate configuration

A Low-profile 4-element Circularly Polarized Hexagonal DRA Array for Triple-band Wireless Applications

High gain and circularly polarized beam-switching 8 × 8 Vivaldi antenna array for X-band application

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