The nRF7002 Development Kit (DK) has two antenna switches: SW1 (Packet Traffic Arbitration (PTA) controlled) and SW2 (General-Purpose Input/Output (GPIO) controlled). These are specifically designed to facilitate test and development of both separate and shared antennas between Bluetooth® LE/IEEE 802.15.4 and Wi-Fi® radios.
Switch SW1 connects nRF7002 to antenna A1 and switch SW2 connects nRF5340
to antenna A2. Switch SW2 is configured based on the setting of
CONFIG_COEX_SEP_ANTENNAS:- Separate antennas—when
CONFIG_COEX_SEP_ANTENNAS=y, nRF5340 is connected to A2. -
Shared antenna—when
CONFIG_COEX_SEP_ANTENNAS=n, nRF5340 is connected to SW1 and A1 through SW2.
Figure 1. nRF7002 DK antenna configuration
