Link Analysis of High-Throughput Spacecraft Communication Systems for Future Science Missions Antenna Applications Corner

In this issue’s “Antenna Applications Corner” column, author Rainee N. Simons from NASA’s Glenn Research Center describes link analysis of high-throughput satellite communication systems and its impact on the antenna design and performance for future low Earth orbit (LEO) satellites being planned by NASA. The article discusses two scenarios: 1) the first one employs a high data rate link between LEO and ground via relay satellites in geostationary orbit, and 2) the second one is a high data rate link from LEO directly to ground. Link analysis and data rates are shown for both cases, taking into account effective isotropic radiated power, waveforms, elevation angle, path losses, and the receiving antenna gain/system temperature. This article is useful for system and antenna engineers working on link analysis and hardware trades.