Here is a comparison between three options of increasing gain.
dBic = decibels over isotropic radiator that is circularly polarized in the same way as the antenna being measured
“light weight, circularly polarized antenna optimized for Low Earth Orbit (LEO) satellite communication”
https://www.m2inc.com/FG436CP16
“practical sized, yet high performance circular polarized antenna with a remarkably clean pattern […] antenna is ideal for satellite work”
https://www.m2inc.com/FG436CP30
“sets a new performance standard for UHF circular polarized antennas […] an unbeatable satellite communications package”