4.2. Antenna connection
Proteus-e’s smart antenna configuration allows the user to choose between two antenna
options. Detailed description on how to use them and what to consider for certification
aspects is described in chapter
4.2.1. On-board PCB antenna
The Proteus-e has an on-board PCB antenna optimized for strong miniaturization operating
in the 2.4 GHz frequency band. To use this integrated antenna, it has to be connected to the
radio chip by connecting the pins
and
4.2.2. External antenna
For applications that use an external antenna, the Proteus-e provides a 50
Ω
RF signal on
pin
of the module. In this configuration, pin
of the module has to be left open and
pin
has to be connected to the external antenna via 50
Ω
feed line.
The use cases for the integrated antenna are miniaturization and re-use of
module certifications for the end-application. An external antenna is normally
used to increase the achievable radio range, at the cost of more space needed
in the device/application. Also, an external antenna could be needed to fit
the specific application environment of the module, for example when a metal
housing is used.
Proteus-e reference manual version 0.3
© November 2021
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