A compact asymmetrically slotted antipodal Vivaldi antenna for MIMO imaging systems

Djamila Ziani (), Sidi Mohammed Meriah, Fouad Derraz and Lotfi Merad
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Djamila Ziani: University of Tlemcen
Sidi Mohammed Meriah: University of Tlemcen
Fouad Derraz: University of Tlemcen
Lotfi Merad: University of Tlemcen

Telecommunication Systems: Modelling, Analysis, Design and Management, 2023, vol. 83, issue 3, No 4, 267-275

Abstract: Abstract In this paper, we propose a Compact Asymmetrically Slotted Antipodal Vivaldi Antenna (CAS-AVA) design for MIMO imaging systems. The structure has the ability to extend the antenna bandwidth in low-end frequencies achieving a fractional bandwidth of 123.32 % (4.743–20) GHz. Good results are obtained in term of return loss, radiation pattern and gain. A time-domain study has been also performed to characterize the antenna behavior in case of an UWB pulse is used. To further validate our design, an application for MIMO imaging system is also proposed and evaluated. The antenna is used as the MIMO array element, thus forming a compact array and enabling to construct an optimal topology which improve significantly the microwave imaging quality by generating high-resolution images. The results demonstrate that the proposed antenna is a good candidate for microwave MIMO imaging applications.

Keywords: Ultra-wide band; Antipodal Vivaldi antenna; Microwave imaging; Time domain analysis (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (1)

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DOI: 10.1007/s11235-023-01013-5

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