Antenna for mobile handsets (Wimax Mobile)

Hi All

I am looking for sources of information about

* Designing an antenna for mobile handsets which can be used for mobile wimax

thxxx

the quick way is to key words by google search engine

the antenna for mobile is normally like PIFA , Helical dipole, monopole,or ceramic antenna .

hi there, i also would like to know whether it is possible to design a wideband pifa for wimax application. Thanks

What percents of bandwidth would you like to have?

i wud also like 2 know abt the antennas used in wimax!
i'll b making a project on it aroud end of this year!