Reference Manual
Table Of Contents
- Digi XBee® 3 RF Module Hardware Reference Manual
- General XBee 3 specifications
- IEEE 802.15.4-specific specifications
- Mechanical drawings
- Pin signals
- Design notes
- Regulatory information
- XBIB-C development boards
- Manufacturing information
- Troubleshooting
Design notes Design notes for PCB antenna and chip antenna devices
Digi XBee® 3 RF Module Hardware Reference Manual
34
Notes
1. We recommend non-metal enclosures. For metal enclosures, use an external antenna.
2. Keep metal chassis or mounting structures in the keepout area at least 2.54 cm (1 in) from the
antenna.
3. Maximize the distance between the antenna and metal objects that might be mounted in the
keepout area.
4. These keepout area guidelines do not apply for chip antennas or external RF connectors.
XBee 3 Micro chip antenna keepout area
Notes
1. We recommend non-metal enclosures. For metal enclosures, use an external antenna.
2. Keep metal chassis or mounting structures in the keepout area at least 2.54 cm (1 in) from the
antenna.
3. Maximize the distance between the antenna and metal objects that might be mounted in the
keepout area.
4. Neither a copper pour nor a copper keepout is necessary under the shield area for proper
antenna functionality. It is still necessary to follow the recommendations in Recommended
footprint for the PCB layout.
5. These keepout area guidelines do not apply for surface-mount embedded antennas or external
RFconnectors.