Contents I. Introduction
In contemporary wireless communication technologies, the criteria for slim design are becoming increasingly stringent despite the rapidly growing demand for bandwidth with enormous capacities. The academic subject of 5G FR-II (Frequency Range-II) has recently seen an increase in inquiries regarding compact wideband antennas [1], [2]. Utilizing substrates with high permittivity [3], shorted ground [4] fractals [5], [6] and meander lines are some of the many methods that can be used to reduce the size of microstrip antennas. The meander antenna [7] is one of the most often used wideband antennas [8], [9], although it has been around for over three decades. Meander antennas were utilized to overcome the spectrum conjunction to achieve a more extensive data rate, which ultimately paved the door for the development of cognitive radio [10]. The bandwidth can be improved by using a meander dipole with slots over the patch [11]- [13]. It was suggested that an H-shaped meander antenna might be used for various applications within a bandwidth of 5G FR-I (Frequency Range-I) [14]. The width of the meander has an effect that reduces the size of the antenna [15]. The primary issue is that increasing antenna size not only decreases meander width but also has an impact on the reflection coefficient at the resonant frequency. Therefore, there is a decrease in the available bandwidth. In addition, there will be a reduction in gain since each additional turn that creates currents that oppose each other results in a field cancellation [16]- [18]. By incorporating vivaldi [19] into the design, it is possible to make up for the difficulties posed by the meander. The Antipodal Vivaldi (AV) [20] is an innovation in vivaldi antenna. The AVs are distinguished by their low profile, significant directivity, and planar structure. AV is an attractive technique in miniature [21] and the acquisition of wideband. The Antipodal Vivaldi Left (AVL) is added to the rectangular meander to address the difficulties described above regarding meanders. As a result, the AVL has been optimized to incorporate capacitance into the design and overcome issues posed by meandering. The proposed steps for designing the antenna layout can be found in Section II. Section III presents a parametric analysis of the suggested antenna. In Section IV, the results are presented and analyzed, and in Section V, a conclusion is provided.
