Need master thesis topic in RF or RFID. Help plz

Recommend MSc thesis

This spring I will start to write my master thesis. I am very interested in RF circuits, RFID and antenna designs.

Please recommend me sth which is mainstream or very useful in world (or Europe) for these topics above mentioned.
You can also email me
mesrop01@yahoo.com
Thanks.

I personally think RF Circuit design is the best option. (Designing Power Amplifiers, LNAs, Mixers etc)

Choose a topic according to market needs. Even if the topic is interesting could be useless if you don't find any job position after getting the degree. I m not sure that PA or LNA designers are finding positions easily

Work on GaN Transistors and their modelizations..
It's an very interesting and virgin area..

How about the RF coils for MRI ?