Where to buy chip antenna for XBee?

A colleague of mine bought several XBee modules without antenna and I’m looking to buy chip antennas for them.

Which module are you talking about in particular? A part number would be very helpful.

All current model XBee modules come with an antenna or an antenna socket.

The options for antennas are RF Pad, PCB Antenna, U.FL Connector, RPSMA Connector, or Integrated Wire.

Thanks for the fast answer!

Now I understand that they have a U.FL connector. I would like to replace it with a chip antenna, which should be possible from technical point of view. Do you know where I can buy one?

You cannot replace antennas. You only have a socket. You must buy an appropriate U.FL connector antenna which supports the frequency of the device you are using.