Adafruit Passive GPS Antenna uFL - 15mm x 15mm 1 dBi gain
Wow that's a tiny GPS antenna! This passive antenna is only 15mm x 15mm x 6.8mm in size, with a 50mm long uFL cable. Great for when you want to keep things small.
This is the 15mm version - we also have a smaller 9mm uFL GPS Antenna.