CR95HF external antenna design

[msmiha]

Hi all,

does someone know where can I find a reference design for an external antenna? I would like to connect it via the u.fl connector to the CR95HF. I have found a tool ST25R Antenna Matching Tool. Can I use the same tool for CR95HF? If so what should I pay attention to, and where should I connect the antenna on the chip? I don't have any experience with antennas, but I'm building a RFID reader that can read a RFID tag mounted on the bottom side of the glass. The TAG is ISO15693. Any application notes that address external antenna implementation are welcome.