volume | PIER Journals

Abstract

This paper introduces a novel compact microstrip-fed ultra-wideband (UWB) antenna, characterized by its unique square patch design and integrated parasitic circular patch for frequency band rejection. The antenna, fabricated on an FR4 substrate, exhibits dimensions of 0.17λ_g × 0.17λ_g, optimizing space without compromising performance. A significant innovation of this design is the incorporation of a parasitic circular patch with a meticulously optimized radius of 0.02 × λ_g mm, achieving a remarkable return loss of -43 dB at 3.55 GHz, while frequencies ranging from 5.43 to 7.1 GHz exhibit significant notching. This feature effectively eliminates unwanted frequency bands, enhancing the antenna's application in UWB systems. Comprehensive analysis demonstrates that the antenna maintains an omnidirectional radiation pattern and achieves a desirable gain, making it highly compatible with a variety of UWB-enabled devices. The integration of the parasitic circular patch within the compact design not only improves the antenna's spectral purity but also contributes to its practical applicability in modern wireless communication systems. The findings underscore the potential of this antenna design in advancing UWB technology applications, offering a balance among compactness, efficiency, and performance.

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Prof. Ujjval Dave

Mr. Shahidmohammed Modasiya

Dr. Abhinav Dave

Dr. Rahulkumar Patel