https://phys.org/news/2019-01-metamaterials-satellite.html

This type of antenna was originally developed in the 1960s at the Air Force Research Lab. Since then, it has been used in many ground, sea and space applications, perhaps most notably in the communication between NASA and the Apollo spacecraft, and it is still in use on terrestrial communication antenna towers today. However, few significant advances have been made to this decades-old design.

"To use it for space, it's important to have the overall best performance because it costs a lot to develop and fly payloads, and you only get one chance," said Lier. "Our antenna is smaller, lighter weight, has higher efficiency, is more mechanically robust than the heritage designs used on GPS satellites, and can withstand the tough space environment."