User's Manual
DT‐0237A page8of24 Rev:1.0
CONFIDENTIAL
DISTRIBUTED UNDER LICENSE
4 Antennas
The maximum output power authorized by the FCC and industry Canada in the 2.4GHz band is 36 dBm EIRP. For the OSDI-4000-1X,
the maximum output power of the radio is 30 dBm which can be combined to an antenna with a maximum gain of 6 dBi.
The OSDI module has been certified with two different types of integrated antennas as described in the following sections. The information
shown was taken from datasheets or measured when mounted on specific products. Actual patterns will be influenced by the PCB layout
and by surrounding material.
NOTE: Certification regulations differ from one country to the other. It remains the responsibility of the meter manufacturer to
choose an antenna that will meet the requirements of the country where the meters will be deployed as well as any local
certifications that may be required to comply with specific market regulations. See section 7 for more details.
AntennaPlacement
Antenna performance is significantly impacted by the type and physical placement of the antenna. The antenna should be oriented in the
device to properly radiate the RF emissions from the face of the device forward and in an upward direction for optimal connectivity to the
Trilliant SecureMesh network infrastructure. In addition, there should be as few obstacles as possible between the antenna and the outside
of the device.
Through the following examples, Trilliant is attempting to provide antenna options for the most commonly used antenna design scenarios
but keep in mind that this is greatly dependent on the host device design. If you are unsure about which antenna to select, or how it should
be implemented into the overall design, please contact Trilliant for guidance.
The RF connection from the OSDI module to the antenna is made using a 50 ohms micro-strip trace on the host’s PCB. See section 5.4
for routing instructions.