Multi-Tech MultiConnect mDot MTDOT Series, Руководство разработчика

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ANTENNAS
28 MultiConnect
®
mDot
TM
MTDOT Developer Guide for Japan
Chapter 6 – Antennas
Antenna System
The LoRa antenna performance depends on the implementation and antenna design. The integration of the
antenna system into the product is a critical part of the design process; therefore, it is essential to consider it early
so the performance is not compromised. If changes are made to the device's certified antenna system, then
recertification will be required.
This radio transmitter has been approved with the antenna types listed below. The antenna used must maintain
the same specifications. The antenna must be of the same type, with similar in-band and out-of-band radiation
patterns. Antenna types not included on this list, or having a greater gain than the maximum gain indicated for the
listed type, are strictly prohibited for use with this device.
U.FL and Trace Antenna Options
Currently, FCC approval includes Pulse Electronics SMA antenna only. If using U.FL or trace antennas, note the
following:
For a simple trace to RF antennas: Routing must follow standard RF design rules and practices for
stripline/miscrostrip for a 50 ohm impedance line. Use the developer board schematics for a reference
circuit for the a trace antenna. This option may require additional certification testing.
For U.FL antennas: The antenna and cable combination in your design cannot exceed the performance of
the SMA antenna as listed in the next topic.
To design a custom antenna (PCB trace antenna, chip antenna, PCB trace leading to external antenna
connection) do not connect anything to the U.FL connector. Use either ANT1 or ANT2, not both.
Pulse Electronics Antenna
Manufacturer: Pulse Electronics
Description: 868-928 MHz RP-SMA Antenna, 8"
Model Number: W1063
MultiTech Part Number: 45009830L
MultiTech ordering information:
Ordering Part Number Quantity
AN868-915A-1HRA 1
AN868-915A-10HRA 10
AN868-915A-50HRA 50
Antenna Specifications
Category Description
Frequency Range 868-928 MHz