Wi-Fi&Bluetooth Module Series
FCM561D-P_Hardware_Design
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5.3.2. FCM561D-P PCB Antenna
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Table 29: PCB Antenna Specifications
When using the PCB antenna on the module, the module should be placed at the side of the motherboard.
The distance between the PCB antenna and connectors, vias, traces, ethernet port and any other metal
components on the motherboard should be at least 16 mm. All layers in the PCB of the motherboard
under the PCB antenna should be designed as a keepout area.
Figure 16: Keepout Area on Motherboard
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The module is provided in one of the three antenna/antenna interface designs. For more details, contact Quectel
Technical Support.
Parameter
Requirement
Frequency Range (GHz)
2.400
–2.500
Input Impedance (Ω)
50
VSWR
≤ 3 (Typ.)
Gain (dBi)
1 (Typ.)
Efficiency (Avg.)
46.4 %