Аңдатпа
This paper presents an ultra-wide band antipodal Vivaldi antenna that is designed to operate across a frequency range from 15 GHz to 40 GHz, making it suitable for 5G, mm-wave bands, microwave imaging, and IoT applications. The unique features of this antenna include circular cuts and a metamaterial structure, which improve input reflection coefficient and gain. Finally, the ultra-wide band antipodal Vivaldi antenna was experimentally validated and showed a good correlation with simulation results in terms of input reflection coefficient with a −10 dB level ranging from 15 GHz to 40 GHz.