I am designing a PCB that will require a GNSS antenna. The antenna will feed directly into a GNSS module located on the same board. It seems a popular antenna choice for this is a ceramic patch antenna.
For example, this Abracon antenna seems like it would work well for me.
I am a bit confused on how this antenna is actually supposed to attach to a circuit board.
Is the only electrical connection that this antenna makes with the PCB from the through hole post near the center of the antenna? Does the antenna require an electrical connection to the ground plane on my PCB somehow, or does the ground plane on my PCB under the antenna become an integral part of the antenna, thus not requiring a direct connection to the patch anywhere?
I have looked at several other similar antennas and their associated documentation and haven't been able to come to a conclusion. I am looking for some extra guidance on how to design this antenna into my PCB.