4.2. Antenna connection
Proteus-III’s smart antenna configuration enables the user to choose between two antenna
options:
4.2.1. On-board PCB antenna
The Proteus-III has an on-board PCB antenna optimized for strong miniaturization operating
in the 2.4 GHz frequency band. A simple short between the pins
and
feeds the
RF output of the module to the on-board antenna of the Proteus-III. In this configuration, the
module does not require any additional RF circuitry.
4.2.2. External antenna
For applications that use an external antenna, the Proteus-III provides a 50
Ω
RF signal on
pin
of the module. In this configuration, pin
of the module has to be connected to
ground and pin
to the external antenna via 50
Ω
feed line. Refer to chapter
for further
information.
The use cases for the integrated antenna are miniaturization and re-use of
module certifications for the end-application. The use cases for the external
antenna are optimization of radio range spending more space for the antenna
and differentiated antenna for example when metal housings are used.
Proteus-III reference manual version 1.3
© August 2020
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