i need these papers also. but due to my poor points, i cannot download all these. can somebody send them to my email? it's xiaoyongxuan@ee.buaa.edu.cn. thx.
to my best regards
Added after 7 minutes:
to tomcat_x,
is your research about aia (active integrated antenna) ? now i wanna do a kind of numerical simulation. do you have some suggestion or some materials about this? thx again.