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UWB antipodal Vivaldi antenna for monostatic configuration of through wall imaging applications

SAJJAD AHMED1,2,3, ARIFFUDDIN JORET1,3,* , NORSHIDAH KATIRAN1, ASMARASHID PONNIRAN1, M. F. L. ABDULLAH1, ZAHRILADHA ZAKARIA4, MUHAMMAD SUHAIMI SULONG5

Affiliation

  1. Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia (UTHM), Johor, Malaysia
  2. Faculty of Science, Quaid-e-Awam University of Engineering, Science and Technology (QUEST) Nawabshah, Pakistan
  3. Internet of Things Focus Group, Universiti Tun Hussein Onn Malaysia, (UTHM), Johor, Malaysia
  4. Universiti Teknikal Malaysia Melaka, (UTeM), Melaka, Malaysia
  5. Faculty of Technical and Vocational Education, Universiti Tun Hussein Onn Malaysia, (UTHM), Johor, Malaysia

Abstract

This article presents an ultra-wideband (UWB) corrugated slit antipodal Vivaldi antenna (CS-AVA) for through wall imaging (TWI) applications. The antenna was designed using Rogers RT-Duroid 5880 material with corrugated slits applied on flares of antipodal Vivaldi antenna (AVA) to improve performance. The proposed antenna operated in frequency band (3.1 GHz to 10.6 GHz) and had reflection coefficient of less than -10 dB. A specific stable gain of around 11.7 dB is achieved with good directivity and fine radiation patterns. Using this monostatic UWB antenna design, a TWI simulation-based experiment was carried out. It has been found that the received signal of the UWB-AVA can be used to detect metallic objects through the wall..

Keywords

Through wall imaging (TWI), Antipodal Vivaldi antenna (AVA), Ultra-wideband (UWB), Antenna received signal.

Submitted at: Aug. 10, 2022
Accepted at: April 10, 2024

Citation

SAJJAD AHMED, ARIFFUDDIN JORET, NORSHIDAH KATIRAN, ASMARASHID PONNIRAN, M. F. L. ABDULLAH, ZAHRILADHA ZAKARIA, MUHAMMAD SUHAIMI SULONG, UWB antipodal Vivaldi antenna for monostatic configuration of through wall imaging applications, Journal of Optoelectronics and Advanced Materials Vol. 26, Iss. 3-4, pp. 115-121 (2024)