u-blox XPLR-AOA-3, User Manual

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UBX-22006906 - R03 Page 17 of 44
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Direction finding data is then forwarded through the chosen communication interface – either
Ethernet or Wi-Fi using the MAYA-W1 module.
The highlighted areas in
Figure 13 show the EVB-ANT-1 components involved in this use case.
Figure 13: EVB-ANT-1 components involved in the anchor point use case
4.3.2 Custom antenna support
EVB-ANT-1 also supports custom antenna boards that contain an antenna array and an RF switch.
To support the use case, an onboard NINA-B411 Bluetooth module can connect to a custom antenna
board through a 2.54 mm pitch connector. The module includes the power, the RF switch control
signals, and the U.FL connector for the RF signals. The MCU connects to the onboard NINA-B411
through the UART or SPI (pending software support), and GPIOs. Direction finding data can be
communicated to a host through the chosen communication interface
– either Ethernet or Wi-Fi using
the MAYA-W1 module .
Ethernet
MCU
SDIO
MAYA-W1
UART
UART
SPI
GPIO
NINA-B4
GPIO
RF
UART
SPI
GPIO
FTDI
USB
UART
USB
ANT-Bxx
connector
Custom
antenna
board
FTDI USB
connector
ANT-Bxx
USB
connector
Ethernet
connector
(PoE+)
Power
controller
DC power
connector
Wi-Fi
Bluetooth
EVB-ANT-1