I am studying at TU-DELFT,netherlands, indeed the microelectronic here is very good, the leader professor is John.Long, you can serch the information in the web,and you can go to www.tudelft.nl to see more information.
Also,IF you luck ,you can get a big sum of scholarship.
If you are interesting in the south of europe. In Spain there are a good RF group at "Universidad Politecnica de Madrid" www.upm.es. The www of the radar group is www.gmr.ssr.upm.es and anlso there are information on www.ssr.upm.es