6.5.1 PCB Antenna

For the RNBD451 module, the PCB antenna is fabricated on the top copper layer and covered in a solder mask. The layers below the antenna do not have copper trace. It is recommended that the module be mounted on the edge of the host board and to have no PCB material below the antenna structure of the module and no copper traces or planes on the host board in that area.

The following table lists the technical specification of the PCB antenna when tested with the RNBD451 module mounted on an Evaluation Board.

Table 6-1. PCB Antenna Specification for RNBD451
ParameterSpecification
Operating frequency2402 to 2480 MHz
Peak gain2.36 dBi at 2420 MHz
Efficiency50%