User's Manual

15
Reference design 60 GHz radar FF module
User manual and integration instructions
Reference design
6 Reference design
6.1 Design recommendation
 Please reserve the test points of the UART for FW upgrade in the future.
 Please keep the module solder layer free of ground plane/trace rout in the “keep-out area” (shown in
Figure 12).
 The power trace for DC_IN must be at least 20 mm wide.
Figure 8 Recommended layout of radar module
6.2 Integration of radar module into host product
Considerations when integrating are to ensure that the emissions from the host electronics are not advertently
impacting the module and preventing proper operation. Conversely, the module emissions shall not prevent
the rest of the host from operating properly. The complete host must still comply with applicable FCC
regulations.
Therefore, a verification of the final product must be done, by at least spot-checking emissions from the device
while operating the host as a complete system. This testing should be performed with the host product
configured in typical operational modes to check the fundamental frequency and spurious emissions for
compliance with all applicable rules.
To reduce the impact of the module on emissions, the host product manufacturer is advised to follow these
guidelines:
 Ensure that the maximum amount of the radar signal is indeed leaving the host device by ensuring that
the signal is not unnecessarily reflected inside the host. See the Infineon “60 GHz radar radome design
guide” for proper distances to housing surfaces and recommended housing materials.
 Place the radar module inside the host as far away as technically feasible from other electronics that
have been identified as susceptible to RF emissions, or identified to be a potential source of such