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2026-04-09
Design of Ultra-Wideband Vivaldi Antenna with Enhanced Gain Performance
By
Progress In Electromagnetics Research C, Vol. 168, 201-207, 2026
Abstract
An enhanced Vivaldi antenna operating in the ultra-wideband (UWB) region - featuring circular slots and a trapezium-shaped parasitic patch Vivaldi antenna (CSTPP-VA) - is presented in this article. The uniformly arranged slots contribute to a wide bandwidth, while the trapezoidal parasitic patch, located in the end-fire region, enhances impedance bandwidth and improves overall antenna gain. The CSTPP-VA operates over the 3.2-11 GHz frequency range with a peak gain of 9 dB. Compared to the conventional coplanar Vivaldi antenna, it exhibits a 3.6 dB gain improvement, demonstrating enhanced radiation performance.
Citation
Narayanan Mohit, Kumpatla Satya Karthikeya Naidu, Devi Divya Kanth, Venkata Deepak Raj, Gopinathan Prabha, and Senthilnathan Natarajamani, "Design of Ultra-Wideband Vivaldi Antenna with Enhanced Gain Performance," Progress In Electromagnetics Research C, Vol. 168, 201-207, 2026.
doi:10.2528/PIERC25121002
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