Performance Comparison of Various Configurations of Band Notched UWB Antennas | ||||
| JES. Journal of Engineering Sciences | ||||
| Articles in Press, Accepted Manuscript, Available Online from 18 August 2025 | ||||
| Document Type: Research Paper | ||||
| DOI: 10.21608/jesaun.2025.398278.1577 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
N M Nisha  1; Sudhaman K2; Rajkumar S3; A Karunakaran4; Jegadish Kumar K. J5
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| 1Dr.M.G.R Eductional and Research Institute | ||||
| 2Dr.M.G.R Educational and Research Institute | ||||
| 3Wipro Technologies | ||||
| 4S A ENgineering College | ||||
| 5Sri Siva Subramaniya Nadar College of Engineering | ||||
| Abstract | ||||
| This paper presents a study on the efficiency and radiation performance of an Ultra-Wideband (UWB) antenna, emphasizing the effect of introducing slots in both the patch and the ground plane. A key challenge in the current design lies in identifying the optimal slot positions without compromising the antenna's radiation pattern. A critical examination is undertaken to choose slot placement in the radiating structure and in the ground Plane. The dimensional size of the Sierpinski fractal antenna is 14.90 x 14.80 x 1.6 mm3 which covers the entire UWB frequency ranges from 3 GHz to 11GHz. A band notch is created at 5.2GHz (i.e.) wi-fi band with varying meandered slot length in terms of λ. The substrate material used in the design is RT Duroid 5880 (εr = 2.2). The antenna that has been designed features impedance matching (S11 < -10 dB) in the entire operating range and the radiation pattern of measured is in agreement with the simulated one. This proves the antenna’s efficacy in usage for portable devices applications. | ||||
| Keywords | ||||
| Slot; UWB; Band notch; Efficiency | ||||
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