DESIGN, ANALYSIS, SIMULATION, FABRICATION AND TESTING OF ANTIPODAL VIVALDI ANTENNA
DOI:
https://doi.org/10.63458/ijerst.v3i4.136Keywords:
Wideband Antenna, Vivaldi Antenna, Antipodal Vivaldi Antenna, High-Frequency Applications, 5G Communications, Radar Systems, Satellite Systems, Radiation Pattern Optimization, Ultra-Wideband (UWB), Antenna Gain Enhancement.Abstract
This paper presents the development of an Oval Slot Edge Antipodal Vivaldi Antenna (OSEAVA) designed to achieve wideband performance with enhanced gain and directivity for high-frequency applications. Vivaldi antennas are widely recognized for their ultra-wideband characteristics, making them essential in radar, imaging, and communication systems. However, conventional designs often suffer from gain degradation at higher frequencies and suboptimal radiation patterns. To overcome these challenges, an oval-shaped slot is introduced along the antenna’s edge, improving radiation characteristics by enhancing directivity and reducing side lobes. The proposed antenna is simulated over a frequency range of 1 to 40 GHz, demonstrating superior bandwidth, gain, and radiation performance. Additionally, the design is optimized for minimal fabrication complexity while maintaining high efficiency, ensuring feasibility for real-world applications such as 5G communications, satellite systems, and advanced radar technologies. Simulation results indicate that OSEAVA offers significant improvements in bandwidth, gain, and radiation characteristics compared to conventional designs, establishing it as a strong candidate for next-generation wideband wireless and sensing systems.
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