Datasheet

RN4020
DS50002279B-page 8  2015 Microchip Technology Inc.
4.0 PHYSICAL DIMENSIONS
Figure 4-1 shows the physical dimensions for RN4020
module. Figure 4-2 illustrates the recommended PCB
layout. It is recommended that when laying out the
carrier board for the RN4020 module, the areas under
the antenna, RF test point (semi-circular pad), and
shielding connections do not contain surface traces,
ground planes, or exposed vias.
Figure 4-3 specifies the recommended mounting
details. For optimal radio performance, it is recom-
mended that the antenna end of the RN4020 module
protrudes at least 31 mm beyond any metal enclosure.
Figure 4-4 shows an example of good and acceptable
positioning of the RN4020 on the host PCB.
FIGURE 4-1: RN4020 MODULE DIMENSIONS