Antipodal Vivaldi Antenna Design for 6G High Altitude Platform System (HAPS)

In this paper, the design and analysis of the antipodal Vivaldi antenna to be used in High Altitude Platform Systems (HAPS), which is planned to work in the Stratosphere layer in 6th Generation (6G) communication technologies, has been made. As the frequency band, 21.4-22 GHz and 24.25-27.5 GHz, which is announced for the ITU-R2 region, are targeted for HAPS use. In the design, the characteristics of the stratosphere and the requirements of 6G communication technology were considered. The 'CST Studio Suite' program was used for simulations. The aim of this study is to design an antenna with high directivity in the determined frequency band in order to transmit the signal with a narrow beam that can take part in the HAPS structure within the scope of 6G communication.