User Manual

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There are 2 SKUs each providing a singular radiated antenna solution with the BRM1
module: 1. using an internal chip antenna, and 2. providing a unique RF connector for
external antenna connection. The internal chip antenna option incorporated in the design
is manufactured by Johanson Technology (part number 2450AT18A100E) and it has a
peak gain of +0.5 dBi (see reference radiation pattern from the manufacturer below). The
external antenna option will connect to a U.FL or equivalent connector and will connect to
an off-the-shelf printed inverted F antenna (PIFA) design by Pulse Electronics (part
number W3525B) with peak gain +2dBi. It is important to note that under no
circumstances both chip antenna and external PIFA antenna can be utilized at the
same time on a single BRM1 module.