The following table shows the possible combination of Packet Traffic Arbitration (PTA)
modes and antenna configurations, including configurations supported in the current NCS
release.
Table 1. Combination of PTA modes and antenna configurations
| PTA mode |
Hardware support |
Firmware support |
Remarks |
| 3-wire without multiplexed PRIORITY signal |
Yes |
Yes |
Supported |
| 3-wire with multiplexed PRIORITY signal |
Yes |
No |
Firmware support will be added in future |
| 4-wire |
Yes |
No |
Firmware support will be added in future |
Table 2. Hardware and firmware support for antenna configurations
| Antenna configuration |
Hardware support |
Firmware support |
Remarks |
| Separate antennas |
Yes |
Yes |
As per nRF7002
Development Kit (DK) hardware |
| Shared antenna |
Yes |
Yes |
As per nRF7002 DK hardware |
The following conditions are true in combination mode:
- In the Shared Antenna mode, the switch (SW1) is pointing to either Wi-Fi® or Bluetooth®
LE/IEEE 802.15.4. There is no option to connect both
radio interfaces to the antenna concurrently.
- When Wi-Fi is operating in the 5 GHz
band, the PTA is not utilized and hence there is no attempt to restrict Wi-Fi or Bluetooth LE/IEEE 802.15.4 operation. This applies to both
separate and shared antenna cases.
- IEEE 802.15.4 standard/Thread®
requires continuous RX and hence does not support Shared Antenna mode when Wi-Fi is operating in the 2.4 GHz
band.