Integration Manual

Table Of Contents
NORA-B1 series - System integration manual
UBX-20027617 - R04 System description Page 16 of 61
C1-Public
Choose an antenna with optimal radiating characteristics for the best electrical performance and
overall module functionality. An internal antenna integrated on the application board, or an external
antenna that is connected to the application board through a proper 50 Ω connector, can be used.
When using an external antenna, the PCB-to-RF-cable transition must be implemented using either
a suitable 50 Ω connector, or an RF-signal solder pad (including GND) that is optimized for a 50
characteristic impedance.
1.11.2.1 Approved antenna designs
NORA-B101 comes with a pre-certified design that can save time and reduce cost during the
certification process. To leverage this benefit, customers must implement the antenna layout
specified in the u-blox reference and shown in Appendix B, Antenna reference designs.
Designers integrating u-blox reference designs into an end-product are solely responsible for any
unintentional emissions produced in the end-product.
NORA-B101 can be integrated with other antennas. In these instances, OEM designers must certify
the host board design with the applicable regulatory agencies.
1.11.3 Integrated antenna NORA-B106
NORA-B106 is equipped with an integrated antenna. This simplifies the integration, as there is no
need to do an RF trace design on the host PCB. This also means that the pre-certification of
NORA-B1, with the antenna, is even valid for the finished product design. Less time in the test lab
reduces the development overhead and allows for a quicker time to market. NORA-B106 modules
include PCB trace antennas with technology licensed from Proant AB.
1.11.4 NFC antenna
NORA-B1 series modules include a Near Field Communication (NFC) interface, capable of operating
as a 13.56 MHz NFC tag at a bit rate of 106 kbps. As an NFC tag, data can be read from or written to
NORA-B1 modules using an NFC reader; however, NORA-B1 modules are not capable of reading
other tags or initiating NFC communications. Two pins are available for connecting to an external
NFC antenna: NFC1 and NFC2.
1.12 Reserved pins (RSVD)
Do not connect reserved (RSVD) pins. The reserved pins are allocated for future interfaces and
functionality.
1.13 GND pins
Good connection of the module GND pins, using a solid ground layer in the host application board, is
necessary for correct RF performance. Proper grounding provides a thermal heat sink for the module
and reduces the possibility of EMC issues.
For information about ground plane design, see also Module footprint and paste mask and Thermal
guidelines.