Antenna for oem GPRS modem

I am building an embedded application using a GPRS modem ( gm862).
I would like to integrate in a small closed box , both GSM and its bi-band antenna.

Have you some idea or links concerning small antenna for GSM.
Informations concerning a dual but small GPS+GSM antenna are welcome too.


thx

stub

Hi stub,

usually design a pifa antenna for dual band gsm and put off the shelf gps antenna on its ground plane. Using two seperate feeds.

Element7k