multiband microstrip antenna

I am working on a project which the main focus is to design a microstrip antenna in multiband ( wifi, GPRS, bluetooth)
as i am a beginner for antennas , what should i read or what should i do?
i have check it in the internet, but seems there are many different kinds of antennas, such as inverted F, inverted L, can they be used on a microstrip?
And what is the design rules of these kinds of antennas?
thanks for your help

if the frequencies i want to cover is 2Ghz and 2.4-2.6GHz
is it better to use a wideband antenna and which kind of design i should use?
please help~