Realtek RTL8762C Hardware Instructions page 29

The component and trace should be placed following the rules example below, and the RF trace
should go straight forward and appropriately routed.
CORRECT
Follow the route
example, the trace
must be straight
forward.
NG
An extra branch
trace to the
matching is not
allowed.
 The PCB layer with BT CHIP is defined as top layer, the layer next to top layer must be
ground layer as a reference in a 2-layer or 4-layer PCB design.
 There should be no other signal trace that goes through the reference layer under the RF area
(especially in 2-Layer PCB).
 Keep clear in the antenna area. No copper or trace is permitted under the antenna.
 The Reference GND of ANT should be returned to IC EPAD as soon as possible. The ANT
return path needs to be as short as possible and cannot be blocked to ensure good connection.
Examples: The copper on the right side is not completely divided by trace, and the other one is
more appropriate.
RTL8762C Evaluation Board User Manual
28