User's Manual

Laird SSD45N
Hardware Integration Guide, version 0.01
RF
LAYOUT DESIGN GUIDELINES
The following is a list of RF layout design guidelines and recommendation when installing a Laird
radio into your device.
 Do not run antenna cables directly above or directly below the radio.
 Do not place any parts or run any high speed digital lines below the radio.
 If there are other radios or transmitters located on the device (such as a Bluetooth radio),
place the devices as far apart from each other as possible.
 Ensure that there is the maximum allowable spacing separating the antenna connectors on
the Laird radio from the antenna. In addition, do not place antennas directly above or
directly below the radio.
 Laird recommends the use of a double shielded cable for the connection between the radio
and the antenna elements.
 Laird has provided three plated mounting holes that can be used for grounding. When
additional ground plane is required, you may use some or all of these grounded mounting
holes.
 Use proper electro-static-discharge (ESD) procedures when installing the Laird radio module.
 For system schematic relative module, please don’t put via on module’s pad. To avoid void
occupy on solder paste pad.
Americas: [phone] Option 2
Europe: [phone]
Hong Kong: [phone] x026
www.lairdtech.com/wireless
23 Laird Technologies