A miniaturized Vivaldi antenna with modified feeding structure for UWB applications

Madannezhad, A.; Ameri, Hoda; Sadeghi, Sajjad; Faraji‐Dana, Reza

doi:10.1109/antem.2016.7550137

Cited by 12 publications

(3 citation statements)

References 5 publications

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“…Meandering and superstrate design are two methods applied to THz antennas in order to improve the properties of such devices [9,10]. Such a THz antenna has an integrated superstrate cover to enhance its efficiency [11]. Moreover, graphene is used in this design to enhance the performance of an antenna.…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%

Design and Implementation of Wideband Fractal MIMO Antenna for 6G THz Systems

Ka'bi

2024

Preprint

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Numerical optimization of antenna characteristics is an efficient tool to obtain optimal antenna designs with lower sizes, higher gains and wider bandwidths. This paper presents a design and implementation of an antenna prototype based on numerical investigation and optimization of a two-element MIMO antenna model that provides these features. The proposed model has two square fractal metamaterial patches with dimensions of 130 × 65 µm2, and it operates in the THz frequency band. The antenna dimensions are all optimized to provide the optimal characteristics in terms of gain, bandwidth and scattering parameters. In this article, the proposed design is examined from several perspectives, for example, the performance of the MIMO antenna model and the single-element antenna model are analyzed and compared. It is found that the proposed model provides an output gain of 11.1 dBi and a two frequency bands with bandwidths of 18.1 THz and 21.2 THz, with an expansion of 114% and 57% respectively. This design has a gain of 5.18 dBi and measures 130 × 65 µm2. A comparative analysis is conducted between the two-element fractal MIMO design, the O-shaped single element antenna model, with other designs introduced in the literature. The proposed antenna design has high gain, wide operating bandwidths which are essential requirements of 6G mobile communication technology.

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Section: Introduction and Literature Reviewmentioning

confidence: 99%

Design and Implementation of Wideband Fractal MIMO Antenna for 6G THz Systems

Ka'bi

2024

Preprint

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“…The use of corrugated edges can help to reduce the antenna size. The article analyses various corrugated edges and finds that the rectangle corrugated edges is the best, other methods such as design a new feed network or change the tapered slot structure can also improve the bandwidth. But the improvement of the bandwidth is limited.…”

Section: Introductionmentioning

confidence: 99%

Gain-improved double-slot LTSA with conformal corrugated edges

Liu

Liang

Wang

2017

Int J RF Microw Comput Aided Eng

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In this article, a novel double‐slot linearly tapered slot antenna with conformal corrugated edges, is proposed. By using double‐slot structure, the E‐plane aperture field of the proposed antenna is more like a plane wave, which helps to improve the directivity of the antenna. Meanwhile, a novel corrugated edge is designed. This conformal corrugated edge can cover all the outer edges of the antenna which has a better improvement of the impedance bandwidth compared with the rectangle corrugated edge. Additionally, according to the theory of microwave network, this article analyzes the reason of bandwidth enhancement realized by double‐slot structure. The proposed antenna provides 145% fractional bandwidth from 3.5 GHz to 22 GHz. The gain of the proposed antenna is more than 12 dB from 6.5 GHz to 21 GHz, and more than 8 dB at the whole operating band.

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“…Paper [9] analyses various corrugated edges and finds that rectangle corrugated edges are the best. Other methods such as designing a new feed network [10] or changing the tapered slot structure [11] can also improve the bandwidth. However, the improvement of the bandwidth is limited.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth-Enhanced Double-Slot Tsa With Y-Shaped Corrugated Edges

Liu¹,

Liang²,

Wang³

2017

PIER C

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Abstract-In this paper, a novel bandwidth-enhanced ultra-wideband (UWB) tapered slot antenna, with Y-shaped corrugated edges, is proposed. In the double-slot structure, the two slots are separated by a V-shaped metal surface with straight edges, which is beneficial for improving the directivity of the antenna. Meanwhile, an exponential Y-shaped corrugated edge is designed. This novel corrugated edge not only can improve the impedance bandwidth of the antenna by extending the path of the current, but also can enhance the directivity by concentrating the energy near the tapered slot. The proposed antenna provides 167% fractional bandwidth from 2.5 GHz to 28 GHz. The gain of the antenna is more than 10 dB from 3.5 GHz to 25 GHz and more than 8 dB in the whole operating band.

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A miniaturized Vivaldi antenna with modified feeding structure for UWB applications

Cited by 12 publications

References 5 publications

Design and Implementation of Wideband Fractal MIMO Antenna for 6G THz Systems

Design and Implementation of Wideband Fractal MIMO Antenna for 6G THz Systems

Gain-improved double-slot LTSA with conformal corrugated edges

Bandwidth-Enhanced Double-Slot Tsa With Y-Shaped Corrugated Edges

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