I have a general question regarding the connection of an antenna to a RF module like GPS receiver or 433 MHz TXD:
Is a direct connection of an antenna (e.g. GPS ceramic patch) to a module preferred over the regular solution to use a 50 Ohm PCB trace? Or is there more signal reflection, attenuation or other negative impact?
Practically it would look like to have the RF module on the bottom of a PCB and the antenna wire would be fed from the top through a via directly to the antenna pin of the module.