The conference, originally dedicated to the diffusion of information on all aspects of satellite communications at 20-30 GHz, was conceived in 1993, and held for the first time in 1995 in Rome, the Conference was created to publicize the achievements of the Italsat and ACTS satellites in opening the Ka frequency band for use in satellite communications. The 26th Ka and Broadband Communications Conference and the 38th International Communications Satellite Systems Conference (ICSSC), the two most influential technical conferences on satellite systems, will be jointly held in Arlington, Virginia, USA, from September 27 through September 30, 2021.