Custom Antenna Support - u-blox XPLR-AOA-3 User Manual

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
EVB-ANT-1
ANT-Bxx
connector
USB
FTDI USB
connector
RF
Custom
antenna
GPIO
board
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 .
UBX-22006906 - R03
C1-Public
Figure 13 show the EVB-ANT-1 components involved in this use case.
SPI
GPIO
UART
UART
FTDI
UART
SPI
NINA-B4
GPIO
USB
MCU
SDIO
UART
ANT-Bxx
USB
connector
Ethernet
Ethernet
connector
(PoE+)
Power
controller
DC power
connector
Wi-Fi
MAYA-W1
Bluetooth
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