Design and analysis of a low-profile tapered slot UWB Vivaldi antenna for breast cancer diagnosis

Al Gburi, Ahmed Jamal Abdullah and Sasikala, Shanmugam and Karthika, Kandasamy and Arunkumar, Shanmugam and Anusha, Karunakaran and Adithya, Srinivasan (2024) Design and analysis of a low-profile tapered slot UWB Vivaldi antenna for breast cancer diagnosis. Progress In Electromagnetics Research M, 124. pp. 43-51. ISSN 1937-8726

Text 0270212032024231739726.PDF Download (2MB)

Abstract

Antennas are significant passive components in Microwave Imaging (MWI) system. The proposed work focuses on the design and analysis of a Vivaldi antenna of size 45 x 40 x 1.6 mm3 for breast cancer diagnosis. The proposed antenna utilizes an FR4 substrate and offers a wideband response. The suggested antenna design is based on a tapered slot antenna. The design utilizes microstrip slot line transition feed as it provides good impedance matching and wide bandwidth. The proposed antenna’s design attributes like the radius of the slot and tapering rate are optimized through parametric analysis to achieve desired ultra-wideband (UWB) performance. The UWB offered by the designed antenna is 13.87 GHz (2.79 GHz-16.66 GHz). A Voltage Standing Wave Ratio (VSWR) of less than 2 is obtained for the entire resonating frequency range. The proposed antenna exhibits 60% size reduction compared to the conventional Vivaldi antenna with a peak gain and directivity of 4.77 dBi and 5.84 dBi, respectively. A breast phantom has been designed and simulated for Specific Absorption Rate (SAR) calculation. The designed structure exhibits an average SAR of 0.997 W/kg. Further, the proposed antenna is fabricated and tested. The measured results agree with simulation findings. Hence, the compactness and radiation performance of the proposed antenna makes it suitable for breast cancer diagnosis.

Item Type:	Article
Uncontrolled Keywords:	Microwave Imaging (MWI) system, Vivaldi antenna
Divisions:	Faculty Of Electronics And Computer Technology And Engineering
Depositing User:	Sabariah Ismail
Date Deposited:	28 Jun 2024 16:01
Last Modified:	28 Jun 2024 16:01
URI:	http://eprints.utem.edu.my/id/eprint/27237
Statistic Details:	View Download Statistic

Actions (login required)

View Item