My question stems from the Cosmic-1 satellites using single antennas for radio occultation and the cosmic-2 sats that will use a phased array antenna. I've done a fair amount of research in regards to the phased array antenna. Overall it seems to improve the signal to noise ratio when making observations in the lower troposphere (high antenna gain). I have a weak understanding of antennas (not an engineer). So does anyone else know any other advantages to a phased array antenna in comparison to single array.