An Antipodal Vivaldi Antenna Design for Torso Imaging in a Coupling Medium

Sulayman Joof, Semih Dogu, Egemen Bilgin, Mehmet Cayoren

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

An antipodal Vivaldi antenna designed to operate in a coupling medium with a relative dielectric constant of ϵr = 25 for microwave imaging of torso is presented in this paper. The proposed antenna is similar to the conventional antipodal Vivaldi antenna but with optimized parameters to radiate in the desired coupling medium. The antenna has a size of 120×70 mm2 and operating over 230-1000 MHz frequency bandwidth with a peak gain of 5.42 dBi and peak front-to-back ratio of 14.3 dB. The designed antenna shows a better performance compared to other antennas used for microwave torso imaging. To assess the actual performance, a realistic human torso phantom is implemented to detect the water accumulation in the lungs, and as the inversion method linear sampling method is used. The 3-D reconstruction results show that the proposed antenna can be a candidate for microwave torso imaging applications.

Original languageEnglish
Title of host publication15th European Conference on Antennas and Propagation, EuCAP 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9788831299022
DOIs
Publication statusPublished - 22 Mar 2021
Event15th European Conference on Antennas and Propagation, EuCAP 2021 - Dusseldorf, Germany
Duration: 22 Mar 202126 Mar 2021

Publication series

Name15th European Conference on Antennas and Propagation, EuCAP 2021

Conference

Conference15th European Conference on Antennas and Propagation, EuCAP 2021
Country/TerritoryGermany
CityDusseldorf
Period22/03/2126/03/21

Bibliographical note

Publisher Copyright:
© 2021 EurAAP.

Funding

ACKNOWLEDGMENT This work is supported in part by Istanbul Technical University (ITU) Vodafone Future Lab under Project No. ITUVF20180901P10.

FundersFunder number
İTÜ Vodafone Future LabITUVF20180901P10
Istanbul Teknik Üniversitesi

    Keywords

    • Antipodal Vivaldi antenna (AVA)
    • linear sampling method (LSM)
    • microwave imaging (MWI)

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