Experimental Microwave Imaging With a Novel Corrugated Vivaldi Antenna

Abbak, Mehmet; Akıncı, Mehmet Nuri; Çayören, Mehmet; Akduman, İbrahim

doi:10.1109/tap.2017.2670228

Cited by 102 publications

(62 citation statements)

References 28 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 , 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. To improve the gain of the antenna, a novel method is used in Reference where two elliptical‐shaped dielectric sheets are placed parallel to the antenna.…”

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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“…From 1987, Vivaldi antenna design has given much consideration for medical applications for the identical properties that are desired for microwave imaging . For enhancing the performance, several researchers have introduced different methods with new techniques in the lower frequency such as tapered slot, planar directors, exponential slot edged, loaded with parasitic ellipse in the patch, bending feed, cavity‐backed, fern leaf‐type fractal layout, side slotted fin, artificial material lens and reflector, and corrugated Vivaldi . The tapered slot technique was introduced to achieve directional radiation in a square‐shaped Vivaldi antenna with limited bandwidth (BW) .…”

Section: Introductionmentioning

confidence: 99%

“…A complex structure and the low‐gain antipodal antenna were designed to achieve wide impedance BW . A corrugated multiple slotted Vivaldi was designed to enhance the antenna performance for MI application with a big object . Besides, compact antipodal Vivaldi antenna loaded with tapered slot, an artificial material lens, and reflector for GPR application with large dimension 430 mm × 280 mm .…”

Section: Introductionmentioning

confidence: 99%

A 16‐modified antipodal Vivaldi antenna array for microwave‐based breast tumor imaging applications

Samsuzzaman

Islam

et al. 2019

Micro & Optical Tech Letters

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In this article, an improved method is introduced for enhancing the gain and directivity of a modified antipodal Vivaldi antenna, which is suitable for detecting malignant cells in the breast through microwave imaging. By slotting on the fins of the antenna with the addition of parasitic elliptical patch makes the antenna radiation more directive with more gain at the lower band range. The operating fractional bandwidth of this proposed Vivaldi antenna is 120% (2.50‐11 GHz) with compact dimension and directive radiation pattern with 7.20 dBi highest gain. The antenna time‐domain performance and the near‐field directivity (NFD) are also observed. Effective microwave breast phantom imaging system with an array of 16 antipodal antennas is designed where one antenna works as a transmitter and rest of the antenna works as a receiver in turn. The imaging performance is investigated with tumor inside the breast phantom using the Microwave Radar‐Based Imaging Toolbox open source software. Detection of tumor tissue inside breast phantom has been identified by analyzing the modified antipodal Vivaldi antennas' backscattered signal.

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“…Corrugation is added in horn antenna, integrated in LTCC to enhance the bandwidth and gain . Corrugation changes the current distribution and direction at the edges and results in higher gain …”

Section: Introductionmentioning

confidence: 99%

Enhancement of gain with corrugated Y‐shaped patch antenna for triple‐band applications

Naik

Gopi

Chaitanya

et al. 2018

Int J RF Microw Comput Aided Eng

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In this article, investigation has been carried out on Y‐shaped patch antenna to produce triple‐band for wireless applications. The corrugated Y‐shaped patch antenna is considered to produce low reflection coefficient with high gain at the triple‐bands. The corrugated Y‐shaped patch antenna is resonates at 4.19 GHz (4‐4.43 GHz), 8.79 GHz (8.61‐9.01 GHz), 13 GHz (12.6‐13.6 GHz) frequencies with reflection coefficient of −29.26 dB, −34.87 dB, −40.37 dB and gain 5.01 dBi, 5.42 dBi, 7.46 dBi, respectively. The proposed corrugated Y‐shaped patch antenna works three frequency bands at radio communications, satellite communications, and aeronautical radio navigation applications, respectively.

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Experimental Microwave Imaging With a Novel Corrugated Vivaldi Antenna

Cited by 102 publications

References 28 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 16‐modified antipodal Vivaldi antenna array for microwave‐based breast tumor imaging applications

Enhancement of gain with corrugated Y‐shaped patch antenna for triple‐band applications

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