Bluetooth antenna artboard Attention point

Figure 1 is the cc2540 of the package fixed ground to facilitate heat dissipation, so there is no way to line.

Figure 2 here to make as many holes as possible, the ground as large as possible, do not appear in the ANT1 to go to the place where there is no connection to a piece

The white box is the antenna as far as possible after the connection line, so try to add a little bit, and the antenna and the ground just connected to bare a pad (I do not know why)

White box can see a line drawn into a square, this line is the power cord, mainly to let the middle piece of land with the upper floor after the drilling after the multi-point contact.

The red circle indicates the antenna's ground as far as possible can be a few small holes with the next layer of ground multipoint contact.

Bluetooth antenna artboard Attention point