Hardware Description

Wi-linktech Communication Technologies (Shanghai) Co.,Ltd
2019-06-01 www.wi-linktech.com 7/ 10
021-20255077
4 PCB Design and RF Layout
4.1 Example Board Layout
Figure 4. Footprint dimensions
4.2 PCB Layout Guide
Bluetooth works in a frequency of 2.4GHz, the design of PCB and Mechanical should be careful to
avoid the impact of various factors on the RF performance. Please note the following:
1. Outer casing surrounding WLT8761M module should avoid using metal materials. If the
casing is metal, it is recommended to use an external 2.4GHz antenna.
2. Metal screws should be far away from RF part of module.