A Wideband Dipole Antenna Design for Through-the-Wall Imaging on Security Applications

Conference paper (2023)

Authors

Sulayman Joof Istanbul Technical University
Semih Doğu Istanbul Technical University
F.T. Çelik Microelectronics
Kamil Karacuha Istanbul Technical University
Department
Microelectronics
Copyright: © 2023 Sulayman Joof, Semih Doğu, F.T. Çelik, Kamil Karaçuha
DOI: https://doi.org/10.23919/EuCAP57121.2023.10133780
Broadband antenna Enhanced dipole antenna Microwave imaging (MWI)
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Published Date

2023

Language

English

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Department

Microelectronics

Abstract

This study proposes a dipole antenna with wideband characteristics for microwave imaging (MWI) applications. The wide-band characteristic of the antenna is achieved by reshaping the geometry of the conventional dipole. The dipole is fed by a specially designed balun, together with a ground reflector in order to obtain a high gain unidirectional pattern. The antenna is operating from 2.7 to 5 GHz with a maximum realized gain of 8.39 dBi and |S11| less than -10 dB within this frequency band. The simulation results and evolution of the design procedure are provided. Furthermore, a through- the-wall MWI scenario consisting of thirteen antenna elements, a concrete wall, and two hidden objects behind the wall is implemented to evaluate the performance of the antenna. The 2-D reconstruction results obtained from inversion methods indicate that the proposed antenna is a potential candidate for through- the-wall MWI applications.