Impulse response of Vivaldi antenna using cubic-spline and exponential taper profiles for compact ground penetrating radar applications

Ebnabbasi, Khabat; Rappaport, Carey M.; Foltz, Heinrich; McLean, James

doi:10.1109/aps.2010.5561029

2010 IEEE Antennas and Propagation Society International Symposium 2010

DOI: 10.1109/aps.2010.5561029

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Impulse response of Vivaldi antenna using cubic-spline and exponential taper profiles for compact ground penetrating radar applications

Khabat Ebnabbasi

Carey M. Rappaport

Heinrich Foltz³

et al.

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Cited by 2 publications

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“…This PCL technique increased gain to 14 dBi at higher frequencies and provided more than a decade of bandwidth from 4 to 16 GHz. Similarly, another multilayer antenna having cubic spline-shaped dielectric material suspended in air improved the impedance bandwidth near to a decade [16]. A similar bandwidth was achieved in Ref.…”

supporting

confidence: 75%

Broadband dual‐podal multilayer Vivaldi antenna array for remote sensing applications

Nasir

Iftikhar

Shafique

et al. 2023

IET Microwaves Antenna & Prop

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A novel wideband multilayer dual-podal Vivaldi antenna with broadband characteristics from 5.5 to 20.82 GHz, is presented. Contrary to traditional Vivaldi antennas that are antipodal-based, this design is realised by placing a pair of podal Vivaldi antennas with corrugated slots on the top and bottom of a substrate stack (consisting of two dielectric layers) using a Bondply. The pair is fed in-phase with the help of a Strip-Line (SL) transmission section that is terminated on a radial stub to couple capacitively to the antenna elements. With this technique of electrically coupling a podal Vivaldi pair, improved performance parameters are achieved, specifically: a measured maximum gain of 9.33 dBi, Half Power Beam Width of 126.5°in the H-plane, and a maximum Front-to-Back (F/B) ratio of 14.36 dB with an overall antenna size of 29 � 21 � 1.63 mm. The in-depth understanding of the working mechanism is supported by a detailed parametric analysis, current distribution, and a clear physical insight into the operating principles. Moreover, a 1 � 4 Vivaldi antenna array is also designed and analysed. A measured maximum gain of the 13 dBi at 15 GHz in the array is achieved along with the wide bandwidth of 6.3 GHz from 10.78 to 17.07 GHz. The array is fed through an SL corporate feed network that ensures in-phase excitation of all four Vivaldi pairs. A Grounded Co-planar Waveguide to SL transition is adopted for connecting the 2.92 mm Radio Frequency launcher on the top layer. The very compact geometry of the proposed structure enables its integration into the systems for remote sensing applications. K E Y W O R D S antenna arrays, multilayers, Vivaldi antennas | INTRODUCTIONWide Band antennas have been used in many applications of remote sensing, such as water detection, medical imaging, communication systems, and high-resolution radars [1][2][3][4]. For such remote sensing applications, miniaturised Vivaldi antennas with broad bandwidth, end-fire radiation, high (F/B) ratio, and high gain are regarded as one of the most suitable options. To achieve compactness in a typical planar geometry, both feeding and radiating components must be closely fittedThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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supporting

confidence: 75%

Broadband dual‐podal multilayer Vivaldi antenna array for remote sensing applications

Nasir

Iftikhar

Shafique

et al. 2023

IET Microwaves Antenna & Prop

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Systematic Approach to Estimating Monocycle Pulse for Time-Domain Studies of UWB Antennas Using Numerical Computations and Simulation Tools

Ganguly

Guha

Das

et al. 2014

IEEE Antennas Propag. Mag.

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Impulse response of Vivaldi antenna using cubic-spline and exponential taper profiles for compact ground penetrating radar applications

Cited by 2 publications

References 7 publications

Broadband dual‐podal multilayer Vivaldi antenna array for remote sensing applications

Broadband dual‐podal multilayer Vivaldi antenna array for remote sensing applications

Systematic Approach to Estimating Monocycle Pulse for Time-Domain Studies of UWB Antennas Using Numerical Computations and Simulation Tools

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