A Novel Miniaturized Vivaldi Antenna Using Tapered Slot Edge With Resonant Cavity Structure for Ultrawideband Applications

Liu, Yushun; Zhou, Wenjun; Yang, Shi-jie; Li, Weihao; Li, Pengfei; Yang, Shuai

doi:10.1109/lawp.2016.2542269

Cited by 75 publications

(51 citation statements)

References 17 publications

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“…Table listed a comparison between proposed antenna and previously reported related articles. When the proposed antenna compared with those in References 5–9, 11, and 13, then it provides higher gain than these and in terms of compactness, it is much more compact than those in References 5, 7, 8, and 13. It is also seen that the bandwidth of the proposed antenna is wider than those in References 2, 5–9, 11, and 13.…”

Section: Results and Analysismentioning

confidence: 73%

“…In Reference , the triangular‐shaped substrate is used between the radiator and ground to boost the performance of antenna at high frequencies. In Reference , to improve the bandwidth and gain, resonant cavity structure is used in the tapered slot edge of the antenna design. Corrugated‐type structure used on the antipodal Vivaldi antenna (AVA) made it appropriate in wider band widths and higher gain applications.…”

Section: Introductionmentioning

confidence: 99%

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Design of an antipodal Vivaldi antenna with fractal‐shaped dielectric slab for enhanced radiation characteristics

Bhattacharjee

Bhawal

Karmakar

et al. 2020

Micro & Optical Tech Letters

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A conventional antipodal Vivaldi antenna (CAVA) with fractal‐based parallel dielectric slabs is proposed for different wideband applications. At first, a CAVA is designed as a reference antenna, and then Koch fractal‐shaped dielectric slabs are placed parallel to CAVA. The presence of fractal‐shaped dielectric slabs increases the operating bandwidth, and also the field coupling between the antenna arms enhances the gain and directivity of the antenna. The optimized structure of the antenna produces |S11| < −10 dB frequency band from 4.2 GHz to 50 GHz. The total dimension of the fabricated prototype of the proposed antenna is 122 × 66 × 7.692 mm3.

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Section: Results and Analysismentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Design of an antipodal Vivaldi antenna with fractal‐shaped dielectric slab for enhanced radiation characteristics

Bhattacharjee

Bhawal

Karmakar

et al. 2020

Micro & Optical Tech Letters

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show abstract

“…In order to expand the band to lower frequency, the arms of the antenna are rolled back as a long current path occurs [12]. The corrugated structure can improve the radiation pattern and antenna gain of the Vivaldi antenna, and better front-to-back ratio can be achieved [13][14][15][16]. Removing some parts from substrate surrounding the antenna radiating element will also increase the antenna gain [17].…”

Section: Introductionmentioning

confidence: 99%

A Novel High Directive Willis-Sinha Tapered Slot Antenna for GPR Application in Detecting Landmine

Mohanna¹,

Abdallah²,

El‐Hennawy³

et al. 2018

PIER C

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Abstract-A novel Ultra-wideband Willis-Sinha Tapered Slot antenna for landmine detection using Ground Penetrating Radar (GPR) system with enhanced gain and directivity is presented. The structure is constructed on a 235 × 270 mm 2 FR4 dielectric substrate. The antenna is fed by a novel tapered coplanar waveguide (CPW) to coplanar stripline (CPS) transition feed. The antenna's impedance bandwidth is extended by adding an antenna arm constructing parabola shape with the antenna element. The antenna has a corrugated structure along the antenna outer edges to improve radiation efficiency and get higher directivity. Also, a mushroom-like circular EBG structure is used in the lower side of the antenna arm to reduce interference and enhance front-to-back ratio (F/B ratio). A partial substrate removal, like circular cylinders inside the substrate, is aligned with the antenna tapered profile to obtain better radiation efficiency and enhance antenna gain. The operational bandwidth of this antenna extends from 0.18 to 6.2 GHz. The minimum return loss reaches 60 dB. The average directivity reaches 12.2 dBi while the gain and radiation efficiency are 11.8 dBi and 92%, respectively with gain enhancement of 195% due to using corrugated structure and air cavities. The front-to-back ratio (F/B ratio) is 23 dB. Also, a size reduction of 48% is achieved due to using extended arm. The antenna performance was simulated and measured. Good agreement was found between numerical and experimental results. The proposed antenna is suitable for various ultra-wideband applications especially in landmine detection. The design of the proposed antenna is given in very simple five design steps.

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“…However, it also requires a relatively large size. [13] utilized a tapered slot edge with a resonant cavity (TSERC) structure to achieve miniaturization. However, the antenna gain is lower at high frequencies than the reference antenna.…”

Section: Introductionmentioning

confidence: 99%

A Novel Miniaturized Vivaldi Antenna for Ultra-Wideband Applications

Geng¹,

Yang²,

Xiao³

et al. 2017

PIER C

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Abstract-A novel Vivaldi antenna utilizing a tapered slot edge with a stepped structure (TSESS) to achieve miniaturization is presented in this paper. Compared with a conventional Vivaldi antenna of the same size, the proposed TSESS significantly extends the low-end bandwidth limitation and also improves the low-end antenna gain and radiation characteristics. The proposed antenna is fabricated and tested for validating the reliability of the design. The measured results show reasonable agreement with simulated ones. Moreover, a good time-domain response is indicated from the measured group delay, showing that the antenna meets the requirements of a UWB system.

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A Novel Miniaturized Vivaldi Antenna Using Tapered Slot Edge With Resonant Cavity Structure for Ultrawideband Applications

Cited by 75 publications

References 17 publications

Design of an antipodal Vivaldi antenna with fractal‐shaped dielectric slab for enhanced radiation characteristics

Design of an antipodal Vivaldi antenna with fractal‐shaped dielectric slab for enhanced radiation characteristics

A Novel High Directive Willis-Sinha Tapered Slot Antenna for GPR Application in Detecting Landmine

A Novel Miniaturized Vivaldi Antenna for Ultra-Wideband Applications

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