Compound Semiconductors has published an article on the Slogan project which demonstrates the capability and advantages of GaN PA’s in space use.
This project was led by TTI Norte S.L. (Spain). Contributors were Alter Technology (Spain), University of Rome Tor Vegata (Italy), OHB Systems AG (Germany), Active Space Technologies (The Netherlands) and UMS which was responsible of the GaN technology development and manufacture.
Link to the article