Design of a Wideband Antipodal Vivaldi Antenna with Dielectric Fractal Lens for Biomedical Imaging Applications

5 Pages Posted: 6 Jan 2020

See all articles by Anindita Bhattacharjee

Anindita Bhattacharjee

Tripura University (A Central University), Tripura, India

Abhirup Bhawal

Tripura University (A Central University), Tripura, India

Anirban Karmakar

Tripura University (A Central University), Tripura, India

Anuradha Saha

Netaji Subhash Engineering College, Kolkata, India

Date Written: December 31, 2019

Abstract

In this communication a novel fractal inspired antipodal Vivaldi antenna is designed which is appropriate for wideband applications. A step wise techniques has been applied to design and modify the performance of the designed Vivaldi antenna. First, a reference antenna which is a conventional antipodal Vivaldi antenna (CAVA) is designed and then a Koch fractal shaped dielectric lens has been added an extension of the antenna substrate. The fractal dielectric lens produces stronger radiation in the end fire direction and also enhances the gain and directivity of the antenna. The optimized antenna is fabricated and tested which shows S11 characteristics below -10 dB from 4.2 GHz to 42 GHz band. The dimension of the proposed antenna is 186×66×1.524 mm3.

Keywords: Antipodal Vivaldi antenna, Koch fractal, dielectric lens

Suggested Citation

Bhattacharjee, Anindita and Bhawal, Abhirup and Karmakar, Anirban and Saha, Anuradha, Design of a Wideband Antipodal Vivaldi Antenna with Dielectric Fractal Lens for Biomedical Imaging Applications (December 31, 2019). Proceedings of the 2nd International Conference on Information Systems & Management Science (ISMS) 2019 | Tripura University, Agartala, Tripura, India, Available at SSRN: https://ssrn.com/abstract=3512020 or http://dx.doi.org/10.2139/ssrn.3512020

Anindita Bhattacharjee (Contact Author)

Tripura University (A Central University), Tripura, India ( email )

Abhirup Bhawal

Tripura University (A Central University), Tripura, India ( email )

Anirban Karmakar

Tripura University (A Central University), Tripura, India ( email )

Anuradha Saha

Netaji Subhash Engineering College, Kolkata, India ( email )

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