4.6.1 PCB Antenna
For the WBZ35 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 WBZ35 module mounted on an Evaluation Board.
Parameter | Specification |
---|---|
Operating frequency | 2400 to 2500 MHz |
Peak gain | 3.5 dBi at 2420 MHz |
Efficiency | 65% |
Parameter | Specification |
---|---|
Operating frequency | 2400 to 2500 MHz |
Peak gain | 3.7 dBi at 2440 MHz |
Efficiency | 75% |
PCB Antenna Radiation Pattern
The following figures illustrate the antenna radiation patterns for WBZ350 and WBZ351 modules.