An RFID system has many components which global standards have helped ensure can work together. However, simply connecting the components together does not mean that the system will work effectively – the components must be configured to work together.
As an example, although it may be possible to physically connect an antenna to a reader antenna port, if the antenna is not of the correct impedance to match that of the reader’s antenna port, then the system may not function properly or may even be damaged.
Many countries also impose a specific limit on the amount of power that may be transmitted from the antenna. The power transmitted is not simply that output by the reader but is a result of the influence of many components within the system, which is why it is important to know how to configure the system overall to work in unison.