LoRa/BLE Modules
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
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Antenna Information
The external flying lead U.FL dipole antennas for the 868MHz LoRa radio listed below were tested for use with
the RM186. For CE mark countries, the OEM is free to use any manufacturer’s antenna and type of antenna as
long as the gain is less than or equal to the highest gain approved for use (2.0dBi) Contact a Laird Technologies
representative for more information regarding adding antennas.
Item
LoRa Antenna Part#
artNumber
Mfg.
Type
Gain (dBi)
1
RFDPA131015IMBB301
Walsin
Dipole
0.9
2
WPANTDP036-R5A
World Products
Dipole
2.0
3
S152CL-L-PX-868S
Nearson
Dipole
2.0
The BLE transmitter on board the RM186 has been approved with an on-board -1.5dBi chip antenna…
Item
Part Number
Mfg.
Type
Gain (dBi)
RM1xx Part
Number
1
AT5020-E3R0HBANT/LF
ACX
Ceramic
-1.5
RM191-SM
Note: The RM186 module internal BLE chipset IC pins are rated 4 kV (ESD HBM). ESD can find its way through
the external 2-Wire SWD Programming/Debug Interface connector (if used on the customers design), if
discharge is applied directly. Customer should ensure adequate protection against ESD on their end
product design (using the RM186 module) to meet relevant ESD standard (for CE, this is EN301-489).