ANT-MMCX and Microstripe line and UHF RFID module circuit designing
ANT-MMCX means Antenna MMCX connector. It depends on your antenna, but basically its just a matched connector. 

A Microstrip line is a transmission lines structure which is easy to build on a pcb. It consists of a trace over a reference plane with a set width and distance to produce 50 ohm impedance. 
You can find plenty of calculators online to calculate the width and distance from the reference plane for you. If you connect the antenna with a simple wire you can expect an impedance mismatch and very bad performance to the point of being impossible to receive the signals. You cannot build this on a breadboard, you need a proper pcb. 

I would suggest you buy a complete module, this way you could probably use it on a breadboard. 

EDIT:

From looking at this datasheet it seems like this module is meant to be soldered on a pcb, how did you plan to use it on a breadboard ? you might be able to solder some sort of a 50ohm coax directly to the module and connect it to an antenna.