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Engineering Review : International journal for publishing of original researches from the aspect of structural analysis, materials and new technologies in the field of mechanical engineering, shipbuilding, fundamental engineering sciences, computer sciences, electrical engin, Vol. 44 No. 3, 2024.

Original scientific paper

https://doi.org/10.30765/er.2362

Rhombus shaped ultra-wideband Vivaldi antenna with enhanced gain for brain tumor detection

Sivasankari S. ; Department of Electronics and Communication Engineering, Sri Manakula Vinayagar Engineering College, Puducherry, India – 605107 *
Raja P. ; Department of Electronics and Communication Engineering, Sri Manakula Vinayagar Engineering College, Puducherry, India – 605107
Saranya N. ; Department of Electronics and Communication Engineering, Sri Manakula Vinayagar Engineering College, Puducherry, India – 605107

* Corresponding author.

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Abstract

In this article, a novel design for a compact Ultra-wideband Vivaldi antenna specifically designed for brain tumor detection.  The antenna design incorporates a rhombus-shaped slots strategically positioned within the Vivaldi antenna, resulting in a compact form measuring 42.8×29.1×1.6 mm³. To accomplish this, the simulation and fabrication of the antenna utilized a cost-effective FR-4 substrate with a height of 1.6 mm was employed. The integration of these 1 mm side length rhombus-shaped slots enhances the antenna's gain and directivity, surpassing conventional designs. Comprehensive measurements were carried out, illustrating a return loss (S11) lower than -10 dB over a frequency spectrum spanning from 3.1 GHz to 10.6 GHz. Moreover, the measured results showcase an impressive gain of 5.8 dB, emphasizing the efficacy of the proposed antenna design.

Keywords

Vivaldi antenna; rhombus-shaped slots; ultra-wide band (UWB); microwave Imaging

Hrčak ID:

322928

URI

https://hrcak.srce.hr/322928

Publication date:

2.12.2024.

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