Abstract: With the development of large numbers broadband Internet access, global satellite communications is moving towards High Throughput Satellites (HTS). Now, USA, Canada, Europe, Thailand, Japan, United Arab Emirates, Australia have already developed HTS systems. However, there is little research to analyze the factors influencing high throughput. Thus, from the design perspective, the throughput of HTS and influencing factors are calculated and compared at a system level. Finally, the application of HTS is analyzed and forecasted.

Key words: HTS, Ka broadband telecommunication satellite, Q/V band