PAN9420 Wi-Fi Module
3 PAN9420 Module
Design Guide Rev. 1.0
Page 10
3.6 Placement
Antenna Keep-out Area
Do not place any ground plane under the marked restricted antenna area in
any layer! This would be affecting the performance of the chip antenna in a
critical manner.
The following requirements must be met:
Keep this product away from heat. Heat is the major cause of decreasing the life of these
products.
Keep this product away from other high frequency circuits.
The above recommendation for the ground plane is based on a FR4 4-Layer
PCB.